/pandas/tseries/tests/test_offsets.py

import os
from datetime import date, datetime, timedelta
from dateutil.relativedelta import relativedelta
from pandas.compat import range, iteritems
from pandas import compat
import nose
from nose.tools import assert_raises

import numpy as np

from pandas.compat.numpy import np_datetime64_compat
from pandas.core.datetools import (bday, BDay, CDay, BQuarterEnd, BMonthEnd,
                                   BusinessHour, CustomBusinessHour,
                                   CBMonthEnd, CBMonthBegin, BYearEnd,
                                   MonthEnd, MonthBegin, SemiMonthBegin,
                                   SemiMonthEnd, BYearBegin, QuarterBegin,
                                   BQuarterBegin, BMonthBegin, DateOffset,
                                   Week, YearBegin, YearEnd, Hour, Minute,
                                   Second, Day, Micro, Milli, Nano, Easter,
                                   WeekOfMonth, format, ole2datetime,
                                   QuarterEnd, to_datetime, normalize_date,
                                   get_offset, get_standard_freq)

from pandas.core.series import Series
from pandas.tseries.frequencies import (_offset_map, get_freq_code,
                                        _get_freq_str, _INVALID_FREQ_ERROR)
from pandas.tseries.index import _to_m8, DatetimeIndex, _daterange_cache
from pandas.tseries.tools import parse_time_string, DateParseError
import pandas.tseries.offsets as offsets
from pandas.io.pickle import read_pickle
from pandas.tslib import NaT, Timestamp, Timedelta
import pandas.tslib as tslib
from pandas.util.testing import assertRaisesRegexp
import pandas.util.testing as tm
from pandas.tseries.offsets import BusinessMonthEnd, CacheableOffset, \
    LastWeekOfMonth, FY5253, FY5253Quarter, WeekDay
from pandas.tseries.holiday import USFederalHolidayCalendar

_multiprocess_can_split_ = True


def test_monthrange():
    import calendar
    for y in range(2000, 2013):
        for m in range(1, 13):
            assert tslib.monthrange(y, m) == calendar.monthrange(y, m)

####
# Misc function tests
####


def test_format():
    actual = format(datetime(2008, 1, 15))
    assert actual == '20080115'


def test_ole2datetime():
    actual = ole2datetime(60000)
    assert actual == datetime(2064, 4, 8)

    assert_raises(ValueError, ole2datetime, 60)


def test_to_datetime1():
    actual = to_datetime(datetime(2008, 1, 15))
    assert actual == datetime(2008, 1, 15)

    actual = to_datetime('20080115')
    assert actual == datetime(2008, 1, 15)

    # unparseable
    s = 'Month 1, 1999'
    assert to_datetime(s, errors='ignore') == s


def test_normalize_date():
    actual = normalize_date(datetime(2007, 10, 1, 1, 12, 5, 10))
    assert actual == datetime(2007, 10, 1)


def test_to_m8():
    valb = datetime(2007, 10, 1)
    valu = _to_m8(valb)
    tm.assertIsInstance(valu, np.datetime64)
    # assert valu == np.datetime64(datetime(2007,10,1))

    # def test_datetime64_box():
    #    valu = np.datetime64(datetime(2007,10,1))
    #    valb = _dt_box(valu)
    #    assert type(valb) == datetime
    #    assert valb == datetime(2007,10,1)

    #####
    # DateOffset Tests
    #####


class Base(tm.TestCase):
    _offset = None

    _offset_types = [getattr(offsets, o) for o in offsets.__all__]

    timezones = [None, 'UTC', 'Asia/Tokyo', 'US/Eastern',
                 'dateutil/Asia/Tokyo', 'dateutil/US/Pacific']

    @property
    def offset_types(self):
        return self._offset_types

    def _get_offset(self, klass, value=1, normalize=False):
        # create instance from offset class
        if klass is FY5253 or klass is FY5253Quarter:
            klass = klass(n=value, startingMonth=1, weekday=1,
                          qtr_with_extra_week=1, variation='last',
                          normalize=normalize)
        elif klass is LastWeekOfMonth:
            klass = klass(n=value, weekday=5, normalize=normalize)
        elif klass is WeekOfMonth:
            klass = klass(n=value, week=1, weekday=5, normalize=normalize)
        elif klass is Week:
            klass = klass(n=value, weekday=5, normalize=normalize)
        elif klass is DateOffset:
            klass = klass(days=value, normalize=normalize)
        else:
            try:
                klass = klass(value, normalize=normalize)
            except:
                klass = klass(normalize=normalize)
        return klass

    def test_apply_out_of_range(self):
        if self._offset is None:
            return

        # try to create an out-of-bounds result timestamp; if we can't create
        # the offset skip
        try:
            if self._offset in (BusinessHour, CustomBusinessHour):
                # Using 10000 in BusinessHour fails in tz check because of DST
                # difference
                offset = self._get_offset(self._offset, value=100000)
            else:
                offset = self._get_offset(self._offset, value=10000)

            result = Timestamp('20080101') + offset
            self.assertIsInstance(result, datetime)
            self.assertIsNone(result.tzinfo)

            tm._skip_if_no_pytz()
            tm._skip_if_no_dateutil()
            # Check tz is preserved
            for tz in self.timezones:
                t = Timestamp('20080101', tz=tz)
                result = t + offset
                self.assertIsInstance(result, datetime)
                self.assertEqual(t.tzinfo, result.tzinfo)

        except (tslib.OutOfBoundsDatetime):
            raise
        except (ValueError, KeyError) as e:
            raise nose.SkipTest(
                "cannot create out_of_range offset: {0} {1}".format(
                    str(self).split('.')[-1], e))


class TestCommon(Base):

    def setUp(self):
        # exected value created by Base._get_offset
        # are applied to 2011/01/01 09:00 (Saturday)
        # used for .apply and .rollforward
        self.expecteds = {'Day': Timestamp('2011-01-02 09:00:00'),
                          'DateOffset': Timestamp('2011-01-02 09:00:00'),
                          'BusinessDay': Timestamp('2011-01-03 09:00:00'),
                          'CustomBusinessDay':
                          Timestamp('2011-01-03 09:00:00'),
                          'CustomBusinessMonthEnd':
                          Timestamp('2011-01-31 09:00:00'),
                          'CustomBusinessMonthBegin':
                          Timestamp('2011-01-03 09:00:00'),
                          'MonthBegin': Timestamp('2011-02-01 09:00:00'),
                          'BusinessMonthBegin':
                          Timestamp('2011-01-03 09:00:00'),
                          'MonthEnd': Timestamp('2011-01-31 09:00:00'),
                          'SemiMonthEnd': Timestamp('2011-01-15 09:00:00'),
                          'SemiMonthBegin': Timestamp('2011-01-15 09:00:00'),
                          'BusinessMonthEnd': Timestamp('2011-01-31 09:00:00'),
                          'YearBegin': Timestamp('2012-01-01 09:00:00'),
                          'BYearBegin': Timestamp('2011-01-03 09:00:00'),
                          'YearEnd': Timestamp('2011-12-31 09:00:00'),
                          'BYearEnd': Timestamp('2011-12-30 09:00:00'),
                          'QuarterBegin': Timestamp('2011-03-01 09:00:00'),
                          'BQuarterBegin': Timestamp('2011-03-01 09:00:00'),
                          'QuarterEnd': Timestamp('2011-03-31 09:00:00'),
                          'BQuarterEnd': Timestamp('2011-03-31 09:00:00'),
                          'BusinessHour': Timestamp('2011-01-03 10:00:00'),
                          'CustomBusinessHour':
                          Timestamp('2011-01-03 10:00:00'),
                          'WeekOfMonth': Timestamp('2011-01-08 09:00:00'),
                          'LastWeekOfMonth': Timestamp('2011-01-29 09:00:00'),
                          'FY5253Quarter': Timestamp('2011-01-25 09:00:00'),
                          'FY5253': Timestamp('2011-01-25 09:00:00'),
                          'Week': Timestamp('2011-01-08 09:00:00'),
                          'Easter': Timestamp('2011-04-24 09:00:00'),
                          'Hour': Timestamp('2011-01-01 10:00:00'),
                          'Minute': Timestamp('2011-01-01 09:01:00'),
                          'Second': Timestamp('2011-01-01 09:00:01'),
                          'Milli': Timestamp('2011-01-01 09:00:00.001000'),
                          'Micro': Timestamp('2011-01-01 09:00:00.000001'),
                          'Nano': Timestamp(np_datetime64_compat(
                              '2011-01-01T09:00:00.000000001Z'))}

    def test_return_type(self):
        for offset in self.offset_types:
            offset = self._get_offset(offset)

            # make sure that we are returning a Timestamp
            result = Timestamp('20080101') + offset
            self.assertIsInstance(result, Timestamp)

            # make sure that we are returning NaT
            self.assertTrue(NaT + offset is NaT)
            self.assertTrue(offset + NaT is NaT)

            self.assertTrue(NaT - offset is NaT)
            self.assertTrue((-offset).apply(NaT) is NaT)

    def test_offset_n(self):
        for offset_klass in self.offset_types:
            offset = self._get_offset(offset_klass)
            self.assertEqual(offset.n, 1)

            neg_offset = offset * -1
            self.assertEqual(neg_offset.n, -1)

            mul_offset = offset * 3
            self.assertEqual(mul_offset.n, 3)

    def test_offset_freqstr(self):
        for offset_klass in self.offset_types:
            offset = self._get_offset(offset_klass)

            freqstr = offset.freqstr
            if freqstr not in ('<Easter>',
                               "<DateOffset: kwds={'days': 1}>",
                               'LWOM-SAT', ):
                code = get_offset(freqstr)
                self.assertEqual(offset.rule_code, code)

    def _check_offsetfunc_works(self, offset, funcname, dt, expected,
                                normalize=False):
        offset_s = self._get_offset(offset, normalize=normalize)
        func = getattr(offset_s, funcname)

        result = func(dt)
        self.assertTrue(isinstance(result, Timestamp))
        self.assertEqual(result, expected)

        result = func(Timestamp(dt))
        self.assertTrue(isinstance(result, Timestamp))
        self.assertEqual(result, expected)

        # test nano second is preserved
        result = func(Timestamp(dt) + Nano(5))
        self.assertTrue(isinstance(result, Timestamp))
        if normalize is False:
            self.assertEqual(result, expected + Nano(5))
        else:
            self.assertEqual(result, expected)

        if isinstance(dt, np.datetime64):
            # test tz when input is datetime or Timestamp
            return

        tm._skip_if_no_pytz()
        tm._skip_if_no_dateutil()

        for tz in self.timezones:
            expected_localize = expected.tz_localize(tz)
            tz_obj = tslib.maybe_get_tz(tz)
            dt_tz = tslib._localize_pydatetime(dt, tz_obj)

            result = func(dt_tz)
            self.assertTrue(isinstance(result, Timestamp))
            self.assertEqual(result, expected_localize)

            result = func(Timestamp(dt, tz=tz))
            self.assertTrue(isinstance(result, Timestamp))
            self.assertEqual(result, expected_localize)

            # test nano second is preserved
            result = func(Timestamp(dt, tz=tz) + Nano(5))
            self.assertTrue(isinstance(result, Timestamp))
            if normalize is False:
                self.assertEqual(result, expected_localize + Nano(5))
            else:
                self.assertEqual(result, expected_localize)

    def test_apply(self):
        sdt = datetime(2011, 1, 1, 9, 0)
        ndt = np_datetime64_compat('2011-01-01 09:00Z')

        for offset in self.offset_types:
            for dt in [sdt, ndt]:
                expected = self.expecteds[offset.__name__]
                self._check_offsetfunc_works(offset, 'apply', dt, expected)

                expected = Timestamp(expected.date())
                self._check_offsetfunc_works(offset, 'apply', dt, expected,
                                             normalize=True)

    def test_rollforward(self):
        expecteds = self.expecteds.copy()

        # result will not be changed if the target is on the offset
        no_changes = ['Day', 'MonthBegin', 'SemiMonthBegin', 'YearBegin',
                      'Week', 'Hour', 'Minute', 'Second', 'Milli', 'Micro',
                      'Nano', 'DateOffset']
        for n in no_changes:
            expecteds[n] = Timestamp('2011/01/01 09:00')

        expecteds['BusinessHour'] = Timestamp('2011-01-03 09:00:00')
        expecteds['CustomBusinessHour'] = Timestamp('2011-01-03 09:00:00')

        # but be changed when normalize=True
        norm_expected = expecteds.copy()
        for k in norm_expected:
            norm_expected[k] = Timestamp(norm_expected[k].date())

        normalized = {'Day': Timestamp('2011-01-02 00:00:00'),
                      'DateOffset': Timestamp('2011-01-02 00:00:00'),
                      'MonthBegin': Timestamp('2011-02-01 00:00:00'),
                      'SemiMonthBegin': Timestamp('2011-01-15 00:00:00'),
                      'YearBegin': Timestamp('2012-01-01 00:00:00'),
                      'Week': Timestamp('2011-01-08 00:00:00'),
                      'Hour': Timestamp('2011-01-01 00:00:00'),
                      'Minute': Timestamp('2011-01-01 00:00:00'),
                      'Second': Timestamp('2011-01-01 00:00:00'),
                      'Milli': Timestamp('2011-01-01 00:00:00'),
                      'Micro': Timestamp('2011-01-01 00:00:00')}
        norm_expected.update(normalized)

        sdt = datetime(2011, 1, 1, 9, 0)
        ndt = np_datetime64_compat('2011-01-01 09:00Z')

        for offset in self.offset_types:
            for dt in [sdt, ndt]:
                expected = expecteds[offset.__name__]
                self._check_offsetfunc_works(offset, 'rollforward', dt,
                                             expected)
                expected = norm_expected[offset.__name__]
                self._check_offsetfunc_works(offset, 'rollforward', dt,
                                             expected, normalize=True)

    def test_rollback(self):
        expecteds = {'BusinessDay': Timestamp('2010-12-31 09:00:00'),
                     'CustomBusinessDay': Timestamp('2010-12-31 09:00:00'),
                     'CustomBusinessMonthEnd':
                     Timestamp('2010-12-31 09:00:00'),
                     'CustomBusinessMonthBegin':
                     Timestamp('2010-12-01 09:00:00'),
                     'BusinessMonthBegin': Timestamp('2010-12-01 09:00:00'),
                     'MonthEnd': Timestamp('2010-12-31 09:00:00'),
                     'SemiMonthEnd': Timestamp('2010-12-31 09:00:00'),
                     'BusinessMonthEnd': Timestamp('2010-12-31 09:00:00'),
                     'BYearBegin': Timestamp('2010-01-01 09:00:00'),
                     'YearEnd': Timestamp('2010-12-31 09:00:00'),
                     'BYearEnd': Timestamp('2010-12-31 09:00:00'),
                     'QuarterBegin': Timestamp('2010-12-01 09:00:00'),
                     'BQuarterBegin': Timestamp('2010-12-01 09:00:00'),
                     'QuarterEnd': Timestamp('2010-12-31 09:00:00'),
                     'BQuarterEnd': Timestamp('2010-12-31 09:00:00'),
                     'BusinessHour': Timestamp('2010-12-31 17:00:00'),
                     'CustomBusinessHour': Timestamp('2010-12-31 17:00:00'),
                     'WeekOfMonth': Timestamp('2010-12-11 09:00:00'),
                     'LastWeekOfMonth': Timestamp('2010-12-25 09:00:00'),
                     'FY5253Quarter': Timestamp('2010-10-26 09:00:00'),
                     'FY5253': Timestamp('2010-01-26 09:00:00'),
                     'Easter': Timestamp('2010-04-04 09:00:00')}

        # result will not be changed if the target is on the offset
        for n in ['Day', 'MonthBegin', 'SemiMonthBegin', 'YearBegin', 'Week',
                  'Hour', 'Minute', 'Second', 'Milli', 'Micro', 'Nano',
                  'DateOffset']:
            expecteds[n] = Timestamp('2011/01/01 09:00')

        # but be changed when normalize=True
        norm_expected = expecteds.copy()
        for k in norm_expected:
            norm_expected[k] = Timestamp(norm_expected[k].date())

        normalized = {'Day': Timestamp('2010-12-31 00:00:00'),
                      'DateOffset': Timestamp('2010-12-31 00:00:00'),
                      'MonthBegin': Timestamp('2010-12-01 00:00:00'),
                      'SemiMonthBegin': Timestamp('2010-12-15 00:00:00'),
                      'YearBegin': Timestamp('2010-01-01 00:00:00'),
                      'Week': Timestamp('2010-12-25 00:00:00'),
                      'Hour': Timestamp('2011-01-01 00:00:00'),
                      'Minute': Timestamp('2011-01-01 00:00:00'),
                      'Second': Timestamp('2011-01-01 00:00:00'),
                      'Milli': Timestamp('2011-01-01 00:00:00'),
                      'Micro': Timestamp('2011-01-01 00:00:00')}
        norm_expected.update(normalized)

        sdt = datetime(2011, 1, 1, 9, 0)
        ndt = np_datetime64_compat('2011-01-01 09:00Z')

        for offset in self.offset_types:
            for dt in [sdt, ndt]:
                expected = expecteds[offset.__name__]
                self._check_offsetfunc_works(offset, 'rollback', dt, expected)

                expected = norm_expected[offset.__name__]
                self._check_offsetfunc_works(offset, 'rollback', dt, expected,
                                             normalize=True)

    def test_onOffset(self):
        for offset in self.offset_types:
            dt = self.expecteds[offset.__name__]
            offset_s = self._get_offset(offset)
            self.assertTrue(offset_s.onOffset(dt))

            # when normalize=True, onOffset checks time is 00:00:00
            offset_n = self._get_offset(offset, normalize=True)
            self.assertFalse(offset_n.onOffset(dt))

            if offset in (BusinessHour, CustomBusinessHour):
                # In default BusinessHour (9:00-17:00), normalized time
                # cannot be in business hour range
                continue
            date = datetime(dt.year, dt.month, dt.day)
            self.assertTrue(offset_n.onOffset(date))

    def test_add(self):
        dt = datetime(2011, 1, 1, 9, 0)

        for offset in self.offset_types:
            offset_s = self._get_offset(offset)
            expected = self.expecteds[offset.__name__]

            result_dt = dt + offset_s
            result_ts = Timestamp(dt) + offset_s
            for result in [result_dt, result_ts]:
                self.assertTrue(isinstance(result, Timestamp))
                self.assertEqual(result, expected)

            tm._skip_if_no_pytz()
            for tz in self.timezones:
                expected_localize = expected.tz_localize(tz)
                result = Timestamp(dt, tz=tz) + offset_s
                self.assertTrue(isinstance(result, Timestamp))
                self.assertEqual(result, expected_localize)

            # normalize=True
            offset_s = self._get_offset(offset, normalize=True)
            expected = Timestamp(expected.date())

            result_dt = dt + offset_s
            result_ts = Timestamp(dt) + offset_s
            for result in [result_dt, result_ts]:
                self.assertTrue(isinstance(result, Timestamp))
                self.assertEqual(result, expected)

            for tz in self.timezones:
                expected_localize = expected.tz_localize(tz)
                result = Timestamp(dt, tz=tz) + offset_s
                self.assertTrue(isinstance(result, Timestamp))
                self.assertEqual(result, expected_localize)

    def test_pickle_v0_15_2(self):
        offsets = {'DateOffset': DateOffset(years=1),
                   'MonthBegin': MonthBegin(1),
                   'Day': Day(1),
                   'YearBegin': YearBegin(1),
                   'Week': Week(1)}
        pickle_path = os.path.join(tm.get_data_path(),
                                   'dateoffset_0_15_2.pickle')
        # This code was executed once on v0.15.2 to generate the pickle:
        # with open(pickle_path, 'wb') as f: pickle.dump(offsets, f)
        #
        tm.assert_dict_equal(offsets, read_pickle(pickle_path))


class TestDateOffset(Base):
    _multiprocess_can_split_ = True

    def setUp(self):
        self.d = Timestamp(datetime(2008, 1, 2))
        _offset_map.clear()

    def test_repr(self):
        repr(DateOffset())
        repr(DateOffset(2))
        repr(2 * DateOffset())
        repr(2 * DateOffset(months=2))

    def test_mul(self):
        assert DateOffset(2) == 2 * DateOffset(1)
        assert DateOffset(2) == DateOffset(1) * 2

    def test_constructor(self):

        assert ((self.d + DateOffset(months=2)) == datetime(2008, 3, 2))
        assert ((self.d - DateOffset(months=2)) == datetime(2007, 11, 2))

        assert ((self.d + DateOffset(2)) == datetime(2008, 1, 4))

        assert not DateOffset(2).isAnchored()
        assert DateOffset(1).isAnchored()

        d = datetime(2008, 1, 31)
        assert ((d + DateOffset(months=1)) == datetime(2008, 2, 29))

    def test_copy(self):
        assert (DateOffset(months=2).copy() == DateOffset(months=2))

    def test_eq(self):
        offset1 = DateOffset(days=1)
        offset2 = DateOffset(days=365)

        self.assertNotEqual(offset1, offset2)


class TestBusinessDay(Base):
    _multiprocess_can_split_ = True
    _offset = BDay

    def setUp(self):
        self.d = datetime(2008, 1, 1)

        self.offset = BDay()
        self.offset2 = BDay(2)

    def test_different_normalize_equals(self):
        # equivalent in this special case
        offset = BDay()
        offset2 = BDay()
        offset2.normalize = True
        self.assertEqual(offset, offset2)

    def test_repr(self):
        self.assertEqual(repr(self.offset), '<BusinessDay>')
        assert repr(self.offset2) == '<2 * BusinessDays>'

        expected = '<BusinessDay: offset=datetime.timedelta(1)>'
        assert repr(self.offset + timedelta(1)) == expected

    def test_with_offset(self):
        offset = self.offset + timedelta(hours=2)

        assert (self.d + offset) == datetime(2008, 1, 2, 2)

    def testEQ(self):
        self.assertEqual(self.offset2, self.offset2)

    def test_mul(self):
        pass

    def test_hash(self):
        self.assertEqual(hash(self.offset2), hash(self.offset2))

    def testCall(self):
        self.assertEqual(self.offset2(self.d), datetime(2008, 1, 3))

    def testRAdd(self):
        self.assertEqual(self.d + self.offset2, self.offset2 + self.d)

    def testSub(self):
        off = self.offset2
        self.assertRaises(Exception, off.__sub__, self.d)
        self.assertEqual(2 * off - off, off)

        self.assertEqual(self.d - self.offset2, self.d + BDay(-2))

    def testRSub(self):
        self.assertEqual(self.d - self.offset2, (-self.offset2).apply(self.d))

    def testMult1(self):
        self.assertEqual(self.d + 10 * self.offset, self.d + BDay(10))

    def testMult2(self):
        self.assertEqual(self.d + (-5 * BDay(-10)), self.d + BDay(50))

    def testRollback1(self):
        self.assertEqual(BDay(10).rollback(self.d), self.d)

    def testRollback2(self):
        self.assertEqual(
            BDay(10).rollback(datetime(2008, 1, 5)), datetime(2008, 1, 4))

    def testRollforward1(self):
        self.assertEqual(BDay(10).rollforward(self.d), self.d)

    def testRollforward2(self):
        self.assertEqual(
            BDay(10).rollforward(datetime(2008, 1, 5)), datetime(2008, 1, 7))

    def test_roll_date_object(self):
        offset = BDay()

        dt = date(2012, 9, 15)

        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 14))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 17))

        offset = offsets.Day()
        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

    def test_onOffset(self):
        tests = [(BDay(), datetime(2008, 1, 1), True),
                 (BDay(), datetime(2008, 1, 5), False)]

        for offset, d, expected in tests:
            assertOnOffset(offset, d, expected)

    def test_apply(self):
        tests = []

        tests.append((bday, {datetime(2008, 1, 1): datetime(2008, 1, 2),
                             datetime(2008, 1, 4): datetime(2008, 1, 7),
                             datetime(2008, 1, 5): datetime(2008, 1, 7),
                             datetime(2008, 1, 6): datetime(2008, 1, 7),
                             datetime(2008, 1, 7): datetime(2008, 1, 8)}))

        tests.append((2 * bday, {datetime(2008, 1, 1): datetime(2008, 1, 3),
                                 datetime(2008, 1, 4): datetime(2008, 1, 8),
                                 datetime(2008, 1, 5): datetime(2008, 1, 8),
                                 datetime(2008, 1, 6): datetime(2008, 1, 8),
                                 datetime(2008, 1, 7): datetime(2008, 1, 9)}))

        tests.append((-bday, {datetime(2008, 1, 1): datetime(2007, 12, 31),
                              datetime(2008, 1, 4): datetime(2008, 1, 3),
                              datetime(2008, 1, 5): datetime(2008, 1, 4),
                              datetime(2008, 1, 6): datetime(2008, 1, 4),
                              datetime(2008, 1, 7): datetime(2008, 1, 4),
                              datetime(2008, 1, 8): datetime(2008, 1, 7)}))

        tests.append((-2 * bday, {datetime(2008, 1, 1): datetime(2007, 12, 28),
                                  datetime(2008, 1, 4): datetime(2008, 1, 2),
                                  datetime(2008, 1, 5): datetime(2008, 1, 3),
                                  datetime(2008, 1, 6): datetime(2008, 1, 3),
                                  datetime(2008, 1, 7): datetime(2008, 1, 3),
                                  datetime(2008, 1, 8): datetime(2008, 1, 4),
                                  datetime(2008, 1, 9): datetime(2008, 1, 7)}))

        tests.append((BDay(0), {datetime(2008, 1, 1): datetime(2008, 1, 1),
                                datetime(2008, 1, 4): datetime(2008, 1, 4),
                                datetime(2008, 1, 5): datetime(2008, 1, 7),
                                datetime(2008, 1, 6): datetime(2008, 1, 7),
                                datetime(2008, 1, 7): datetime(2008, 1, 7)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_large_n(self):
        dt = datetime(2012, 10, 23)

        result = dt + BDay(10)
        self.assertEqual(result, datetime(2012, 11, 6))

        result = dt + BDay(100) - BDay(100)
        self.assertEqual(result, dt)

        off = BDay() * 6
        rs = datetime(2012, 1, 1) - off
        xp = datetime(2011, 12, 23)
        self.assertEqual(rs, xp)

        st = datetime(2011, 12, 18)
        rs = st + off
        xp = datetime(2011, 12, 26)
        self.assertEqual(rs, xp)

        off = BDay() * 10
        rs = datetime(2014, 1, 5) + off  # see #5890
        xp = datetime(2014, 1, 17)
        self.assertEqual(rs, xp)

    def test_apply_corner(self):
        self.assertRaises(TypeError, BDay().apply, BMonthEnd())

    def test_offsets_compare_equal(self):
        # root cause of #456
        offset1 = BDay()
        offset2 = BDay()
        self.assertFalse(offset1 != offset2)


class TestBusinessHour(Base):
    _multiprocess_can_split_ = True
    _offset = BusinessHour

    def setUp(self):
        self.d = datetime(2014, 7, 1, 10, 00)

        self.offset1 = BusinessHour()
        self.offset2 = BusinessHour(n=3)

        self.offset3 = BusinessHour(n=-1)
        self.offset4 = BusinessHour(n=-4)

        from datetime import time as dt_time
        self.offset5 = BusinessHour(start=dt_time(11, 0), end=dt_time(14, 30))
        self.offset6 = BusinessHour(start='20:00', end='05:00')
        self.offset7 = BusinessHour(n=-2, start=dt_time(21, 30),
                                    end=dt_time(6, 30))

    def test_constructor_errors(self):
        from datetime import time as dt_time
        with tm.assertRaises(ValueError):
            BusinessHour(start=dt_time(11, 0, 5))
        with tm.assertRaises(ValueError):
            BusinessHour(start='AAA')
        with tm.assertRaises(ValueError):
            BusinessHour(start='14:00:05')

    def test_different_normalize_equals(self):
        # equivalent in this special case
        offset = self._offset()
        offset2 = self._offset()
        offset2.normalize = True
        self.assertEqual(offset, offset2)

    def test_repr(self):
        self.assertEqual(repr(self.offset1), '<BusinessHour: BH=09:00-17:00>')
        self.assertEqual(repr(self.offset2),
                         '<3 * BusinessHours: BH=09:00-17:00>')
        self.assertEqual(repr(self.offset3),
                         '<-1 * BusinessHour: BH=09:00-17:00>')
        self.assertEqual(repr(self.offset4),
                         '<-4 * BusinessHours: BH=09:00-17:00>')

        self.assertEqual(repr(self.offset5), '<BusinessHour: BH=11:00-14:30>')
        self.assertEqual(repr(self.offset6), '<BusinessHour: BH=20:00-05:00>')
        self.assertEqual(repr(self.offset7),
                         '<-2 * BusinessHours: BH=21:30-06:30>')

    def test_with_offset(self):
        expected = Timestamp('2014-07-01 13:00')

        self.assertEqual(self.d + BusinessHour() * 3, expected)
        self.assertEqual(self.d + BusinessHour(n=3), expected)

    def testEQ(self):
        for offset in [self.offset1, self.offset2, self.offset3, self.offset4]:
            self.assertEqual(offset, offset)

        self.assertNotEqual(BusinessHour(), BusinessHour(-1))
        self.assertEqual(BusinessHour(start='09:00'), BusinessHour())
        self.assertNotEqual(BusinessHour(start='09:00'),
                            BusinessHour(start='09:01'))
        self.assertNotEqual(BusinessHour(start='09:00', end='17:00'),
                            BusinessHour(start='17:00', end='09:01'))

    def test_hash(self):
        for offset in [self.offset1, self.offset2, self.offset3, self.offset4]:
            self.assertEqual(hash(offset), hash(offset))

    def testCall(self):
        self.assertEqual(self.offset1(self.d), datetime(2014, 7, 1, 11))
        self.assertEqual(self.offset2(self.d), datetime(2014, 7, 1, 13))
        self.assertEqual(self.offset3(self.d), datetime(2014, 6, 30, 17))
        self.assertEqual(self.offset4(self.d), datetime(2014, 6, 30, 14))

    def testRAdd(self):
        self.assertEqual(self.d + self.offset2, self.offset2 + self.d)

    def testSub(self):
        off = self.offset2
        self.assertRaises(Exception, off.__sub__, self.d)
        self.assertEqual(2 * off - off, off)

        self.assertEqual(self.d - self.offset2, self.d + self._offset(-3))

    def testRSub(self):
        self.assertEqual(self.d - self.offset2, (-self.offset2).apply(self.d))

    def testMult1(self):
        self.assertEqual(self.d + 5 * self.offset1, self.d + self._offset(5))

    def testMult2(self):
        self.assertEqual(self.d + (-3 * self._offset(-2)),
                         self.d + self._offset(6))

    def testRollback1(self):
        self.assertEqual(self.offset1.rollback(self.d), self.d)
        self.assertEqual(self.offset2.rollback(self.d), self.d)
        self.assertEqual(self.offset3.rollback(self.d), self.d)
        self.assertEqual(self.offset4.rollback(self.d), self.d)
        self.assertEqual(self.offset5.rollback(self.d),
                         datetime(2014, 6, 30, 14, 30))
        self.assertEqual(self.offset6.rollback(
            self.d), datetime(2014, 7, 1, 5, 0))
        self.assertEqual(self.offset7.rollback(
            self.d), datetime(2014, 7, 1, 6, 30))

        d = datetime(2014, 7, 1, 0)
        self.assertEqual(self.offset1.rollback(d), datetime(2014, 6, 30, 17))
        self.assertEqual(self.offset2.rollback(d), datetime(2014, 6, 30, 17))
        self.assertEqual(self.offset3.rollback(d), datetime(2014, 6, 30, 17))
        self.assertEqual(self.offset4.rollback(d), datetime(2014, 6, 30, 17))
        self.assertEqual(self.offset5.rollback(
            d), datetime(2014, 6, 30, 14, 30))
        self.assertEqual(self.offset6.rollback(d), d)
        self.assertEqual(self.offset7.rollback(d), d)

        self.assertEqual(self._offset(5).rollback(self.d), self.d)

    def testRollback2(self):
        self.assertEqual(self._offset(-3)
                         .rollback(datetime(2014, 7, 5, 15, 0)),
                         datetime(2014, 7, 4, 17, 0))

    def testRollforward1(self):
        self.assertEqual(self.offset1.rollforward(self.d), self.d)
        self.assertEqual(self.offset2.rollforward(self.d), self.d)
        self.assertEqual(self.offset3.rollforward(self.d), self.d)
        self.assertEqual(self.offset4.rollforward(self.d), self.d)
        self.assertEqual(self.offset5.rollforward(
            self.d), datetime(2014, 7, 1, 11, 0))
        self.assertEqual(self.offset6.rollforward(
            self.d), datetime(2014, 7, 1, 20, 0))
        self.assertEqual(self.offset7.rollforward(
            self.d), datetime(2014, 7, 1, 21, 30))

        d = datetime(2014, 7, 1, 0)
        self.assertEqual(self.offset1.rollforward(d), datetime(2014, 7, 1, 9))
        self.assertEqual(self.offset2.rollforward(d), datetime(2014, 7, 1, 9))
        self.assertEqual(self.offset3.rollforward(d), datetime(2014, 7, 1, 9))
        self.assertEqual(self.offset4.rollforward(d), datetime(2014, 7, 1, 9))
        self.assertEqual(self.offset5.rollforward(d), datetime(2014, 7, 1, 11))
        self.assertEqual(self.offset6.rollforward(d), d)
        self.assertEqual(self.offset7.rollforward(d), d)

        self.assertEqual(self._offset(5).rollforward(self.d), self.d)

    def testRollforward2(self):
        self.assertEqual(self._offset(-3)
                         .rollforward(datetime(2014, 7, 5, 16, 0)),
                         datetime(2014, 7, 7, 9))

    def test_roll_date_object(self):
        offset = BusinessHour()

        dt = datetime(2014, 7, 6, 15, 0)

        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2014, 7, 4, 17))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2014, 7, 7, 9))

    def test_normalize(self):
        tests = []

        tests.append((BusinessHour(normalize=True),
                      {datetime(2014, 7, 1, 8): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 17): datetime(2014, 7, 2),
                       datetime(2014, 7, 1, 16): datetime(2014, 7, 2),
                       datetime(2014, 7, 1, 23): datetime(2014, 7, 2),
                       datetime(2014, 7, 1, 0): datetime(2014, 7, 1),
                       datetime(2014, 7, 4, 15): datetime(2014, 7, 4),
                       datetime(2014, 7, 4, 15, 59): datetime(2014, 7, 4),
                       datetime(2014, 7, 4, 16, 30): datetime(2014, 7, 7),
                       datetime(2014, 7, 5, 23): datetime(2014, 7, 7),
                       datetime(2014, 7, 6, 10): datetime(2014, 7, 7)}))

        tests.append((BusinessHour(-1, normalize=True),
                      {datetime(2014, 7, 1, 8): datetime(2014, 6, 30),
                       datetime(2014, 7, 1, 17): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 16): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 10): datetime(2014, 6, 30),
                       datetime(2014, 7, 1, 0): datetime(2014, 6, 30),
                       datetime(2014, 7, 7, 10): datetime(2014, 7, 4),
                       datetime(2014, 7, 7, 10, 1): datetime(2014, 7, 7),
                       datetime(2014, 7, 5, 23): datetime(2014, 7, 4),
                       datetime(2014, 7, 6, 10): datetime(2014, 7, 4)}))

        tests.append((BusinessHour(1, normalize=True, start='17:00',
                                   end='04:00'),
                      {datetime(2014, 7, 1, 8): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 17): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 23): datetime(2014, 7, 2),
                       datetime(2014, 7, 2, 2): datetime(2014, 7, 2),
                       datetime(2014, 7, 2, 3): datetime(2014, 7, 2),
                       datetime(2014, 7, 4, 23): datetime(2014, 7, 5),
                       datetime(2014, 7, 5, 2): datetime(2014, 7, 5),
                       datetime(2014, 7, 7, 2): datetime(2014, 7, 7),
                       datetime(2014, 7, 7, 17): datetime(2014, 7, 7)}))

        for offset, cases in tests:
            for dt, expected in compat.iteritems(cases):
                self.assertEqual(offset.apply(dt), expected)

    def test_onOffset(self):
        tests = []

        tests.append((BusinessHour(), {datetime(2014, 7, 1, 9): True,
                                       datetime(2014, 7, 1, 8, 59): False,
                                       datetime(2014, 7, 1, 8): False,
                                       datetime(2014, 7, 1, 17): True,
                                       datetime(2014, 7, 1, 17, 1): False,
                                       datetime(2014, 7, 1, 18): False,
                                       datetime(2014, 7, 5, 9): False,
                                       datetime(2014, 7, 6, 12): False}))

        tests.append((BusinessHour(start='10:00', end='15:00'),
                      {datetime(2014, 7, 1, 9): False,
                       datetime(2014, 7, 1, 10): True,
                       datetime(2014, 7, 1, 15): True,
                       datetime(2014, 7, 1, 15, 1): False,
                       datetime(2014, 7, 5, 12): False,
                       datetime(2014, 7, 6, 12): False}))

        tests.append((BusinessHour(start='19:00', end='05:00'),
                      {datetime(2014, 7, 1, 9, 0): False,
                       datetime(2014, 7, 1, 10, 0): False,
                       datetime(2014, 7, 1, 15): False,
                       datetime(2014, 7, 1, 15, 1): False,
                       datetime(2014, 7, 5, 12, 0): False,
                       datetime(2014, 7, 6, 12, 0): False,
                       datetime(2014, 7, 1, 19, 0): True,
                       datetime(2014, 7, 2, 0, 0): True,
                       datetime(2014, 7, 4, 23): True,
                       datetime(2014, 7, 5, 1): True,
                       datetime(2014, 7, 5, 5, 0): True,
                       datetime(2014, 7, 6, 23, 0): False,
                       datetime(2014, 7, 7, 3, 0): False}))

        for offset, cases in tests:
            for dt, expected in compat.iteritems(cases):
                self.assertEqual(offset.onOffset(dt), expected)

    def test_opening_time(self):
        tests = []

        # opening time should be affected by sign of n, not by n's value and
        # end
        tests.append((
            [BusinessHour(), BusinessHour(n=2), BusinessHour(
                n=4), BusinessHour(end='10:00'), BusinessHour(n=2, end='4:00'),
             BusinessHour(n=4, end='15:00')],
            {datetime(2014, 7, 1, 11): (datetime(2014, 7, 2, 9), datetime(
                2014, 7, 1, 9)),
             datetime(2014, 7, 1, 18): (datetime(2014, 7, 2, 9), datetime(
                 2014, 7, 1, 9)),
             datetime(2014, 7, 1, 23): (datetime(2014, 7, 2, 9), datetime(
                 2014, 7, 1, 9)),
             datetime(2014, 7, 2, 8): (datetime(2014, 7, 2, 9), datetime(
                 2014, 7, 1, 9)),
             # if timestamp is on opening time, next opening time is
             # as it is
             datetime(2014, 7, 2, 9): (datetime(2014, 7, 2, 9), datetime(
                 2014, 7, 2, 9)),
             datetime(2014, 7, 2, 10): (datetime(2014, 7, 3, 9), datetime(
                 2014, 7, 2, 9)),
             # 2014-07-05 is saturday
             datetime(2014, 7, 5, 10): (datetime(2014, 7, 7, 9), datetime(
                 2014, 7, 4, 9)),
             datetime(2014, 7, 4, 10): (datetime(2014, 7, 7, 9), datetime(
                 2014, 7, 4, 9)),
             datetime(2014, 7, 4, 23): (datetime(2014, 7, 7, 9), datetime(
                 2014, 7, 4, 9)),
             datetime(2014, 7, 6, 10): (datetime(2014, 7, 7, 9), datetime(
                 2014, 7, 4, 9)),
             datetime(2014, 7, 7, 5): (datetime(2014, 7, 7, 9), datetime(
                 2014, 7, 4, 9)),
             datetime(2014, 7, 7, 9, 1): (datetime(2014, 7, 8, 9), datetime(
                 2014, 7, 7, 9))}))

        tests.append(([BusinessHour(start='11:15'),
                       BusinessHour(n=2, start='11:15'),
                       BusinessHour(n=3, start='11:15'),
                       BusinessHour(start='11:15', end='10:00'),
                       BusinessHour(n=2, start='11:15', end='4:00'),
                       BusinessHour(n=3, start='11:15', end='15:00')],
                      {datetime(2014, 7, 1, 11): (datetime(
                          2014, 7, 1, 11, 15), datetime(2014, 6, 30, 11, 15)),
                       datetime(2014, 7, 1, 18): (datetime(
                           2014, 7, 2, 11, 15), datetime(2014, 7, 1, 11, 15)),
                       datetime(2014, 7, 1, 23): (datetime(
                           2014, 7, 2, 11, 15), datetime(2014, 7, 1, 11, 15)),
                       datetime(2014, 7, 2, 8): (datetime(2014, 7, 2, 11, 15),
                                                 datetime(2014, 7, 1, 11, 15)),
                       datetime(2014, 7, 2, 9): (datetime(2014, 7, 2, 11, 15),
                                                 datetime(2014, 7, 1, 11, 15)),
                       datetime(2014, 7, 2, 10): (datetime(
                           2014, 7, 2, 11, 15), datetime(2014, 7, 1, 11, 15)),
                       datetime(2014, 7, 2, 11, 15): (datetime(
                           2014, 7, 2, 11, 15), datetime(2014, 7, 2, 11, 15)),
                       datetime(2014, 7, 2, 11, 15, 1): (datetime(
                           2014, 7, 3, 11, 15), datetime(2014, 7, 2, 11, 15)),
                       datetime(2014, 7, 5, 10): (datetime(
                           2014, 7, 7, 11, 15), datetime(2014, 7, 4, 11, 15)),
                       datetime(2014, 7, 4, 10): (datetime(
                           2014, 7, 4, 11, 15), datetime(2014, 7, 3, 11, 15)),
                       datetime(2014, 7, 4, 23): (datetime(
                           2014, 7, 7, 11, 15), datetime(2014, 7, 4, 11, 15)),
                       datetime(2014, 7, 6, 10): (datetime(
                           2014, 7, 7, 11, 15), datetime(2014, 7, 4, 11, 15)),
                       datetime(2014, 7, 7, 5): (datetime(2014, 7, 7, 11, 15),
                                                 datetime(2014, 7, 4, 11, 15)),
                       datetime(2014, 7, 7, 9, 1): (
                           datetime(2014, 7, 7, 11, 15),
                           datetime(2014, 7, 4, 11, 15))}))

        tests.append(([BusinessHour(-1), BusinessHour(n=-2),
                       BusinessHour(n=-4),
                       BusinessHour(n=-1, end='10:00'),
                       BusinessHour(n=-2, end='4:00'),
                       BusinessHour(n=-4, end='15:00')],
                      {datetime(2014, 7, 1, 11): (datetime(2014, 7, 1, 9),
                                                  datetime(2014, 7, 2, 9)),
                       datetime(2014, 7, 1, 18): (datetime(2014, 7, 1, 9),
                                                  datetime(2014, 7, 2, 9)),
                       datetime(2014, 7, 1, 23): (datetime(2014, 7, 1, 9),
                                                  datetime(2014, 7, 2, 9)),
                       datetime(2014, 7, 2, 8): (datetime(2014, 7, 1, 9),
                                                 datetime(2014, 7, 2, 9)),
                       datetime(2014, 7, 2, 9): (datetime(2014, 7, 2, 9),
                                                 datetime(2014, 7, 2, 9)),
                       datetime(2014, 7, 2, 10): (datetime(2014, 7, 2, 9),
                                                  datetime(2014, 7, 3, 9)),
                       datetime(2014, 7, 5, 10): (datetime(2014, 7, 4, 9),
                                                  datetime(2014, 7, 7, 9)),
                       datetime(2014, 7, 4, 10): (datetime(2014, 7, 4, 9),
                                                  datetime(2014, 7, 7, 9)),
                       datetime(2014, 7, 4, 23): (datetime(2014, 7, 4, 9),
                                                  datetime(2014, 7, 7, 9)),
                       datetime(2014, 7, 6, 10): (datetime(2014, 7, 4, 9),
                                                  datetime(2014, 7, 7, 9)),
                       datetime(2014, 7, 7, 5): (datetime(2014, 7, 4, 9),
                                                 datetime(2014, 7, 7, 9)),
                       datetime(2014, 7, 7, 9): (datetime(2014, 7, 7, 9),
                                                 datetime(2014, 7, 7, 9)),
                       datetime(2014, 7, 7, 9, 1): (datetime(2014, 7, 7, 9),
                                                    datetime(2014, 7, 8, 9))}))

        tests.append(([BusinessHour(start='17:00', end='05:00'),
                       BusinessHour(n=3, start='17:00', end='03:00')],
                      {datetime(2014, 7, 1, 11): (datetime(2014, 7, 1, 17),
                                                  datetime(2014, 6, 30, 17)),
                       datetime(2014, 7, 1, 18): (datetime(2014, 7, 2, 17),
                                                  datetime(2014, 7, 1, 17)),
                       datetime(2014, 7, 1, 23): (datetime(2014, 7, 2, 17),
                                                  datetime(2014, 7, 1, 17)),
                       datetime(2014, 7, 2, 8): (datetime(2014, 7, 2, 17),
                                                 datetime(2014, 7, 1, 17)),
                       datetime(2014, 7, 2, 9): (datetime(2014, 7, 2, 17),
                                                 datetime(2014, 7, 1, 17)),
                       datetime(2014, 7, 4, 17): (datetime(2014, 7, 4, 17),
                                                  datetime(2014, 7, 4, 17)),
                       datetime(2014, 7, 5, 10): (datetime(2014, 7, 7, 17),
                                                  datetime(2014, 7, 4, 17)),
                       datetime(2014, 7, 4, 10): (datetime(2014, 7, 4, 17),
                                                  datetime(2014, 7, 3, 17)),
                       datetime(2014, 7, 4, 23): (datetime(2014, 7, 7, 17),
                                                  datetime(2014, 7, 4, 17)),
                       datetime(2014, 7, 6, 10): (datetime(2014, 7, 7, 17),
                                                  datetime(2014, 7, 4, 17)),
                       datetime(2014, 7, 7, 5): (datetime(2014, 7, 7, 17),
                                                 datetime(2014, 7, 4, 17)),
                       datetime(2014, 7, 7, 17, 1): (datetime(
                           2014, 7, 8, 17), datetime(2014, 7, 7, 17)), }))

        tests.append(([BusinessHour(-1, start='17:00', end='05:00'),
                       BusinessHour(n=-2, start='17:00', end='03:00')],
                      {datetime(2014, 7, 1, 11): (datetime(2014, 6, 30, 17),
                                                  datetime(2014, 7, 1, 17)),
                       datetime(2014, 7, 1, 18): (datetime(2014, 7, 1, 17),
                                                  datetime(2014, 7, 2, 17)),
                       datetime(2014, 7, 1, 23): (datetime(2014, 7, 1, 17),
                                                  datetime(2014, 7, 2, 17)),
                       datetime(2014, 7, 2, 8): (datetime(2014, 7, 1, 17),
                                                 datetime(2014, 7, 2, 17)),
                       datetime(2014, 7, 2, 9): (datetime(2014, 7, 1, 17),
                                                 datetime(2014, 7, 2, 17)),
                       datetime(2014, 7, 2, 16, 59): (datetime(
                           2014, 7, 1, 17), datetime(2014, 7, 2, 17)),
                       datetime(2014, 7, 5, 10): (datetime(2014, 7, 4, 17),
                                                  datetime(2014, 7, 7, 17)),
                       datetime(2014, 7, 4, 10): (datetime(2014, 7, 3, 17),
                                                  datetime(2014, 7, 4, 17)),
                       datetime(2014, 7, 4, 23): (datetime(2014, 7, 4, 17),
                                                  datetime(2014, 7, 7, 17)),
                       datetime(2014, 7, 6, 10): (datetime(2014, 7, 4, 17),
                                                  datetime(2014, 7, 7, 17)),
                       datetime(2014, 7, 7, 5): (datetime(2014, 7, 4, 17),
                                                 datetime(2014, 7, 7, 17)),
                       datetime(2014, 7, 7, 18): (datetime(2014, 7, 7, 17),
                                                  datetime(2014, 7, 8, 17))}))

        for _offsets, cases in tests:
            for offset in _offsets:
                for dt, (exp_next, exp_prev) in compat.iteritems(cases):
                    self.assertEqual(offset._next_opening_time(dt), exp_next)
                    self.assertEqual(offset._prev_opening_time(dt), exp_prev)

    def test_apply(self):
        tests = []

        tests.append((
            BusinessHour(),
            {datetime(2014, 7, 1, 11): datetime(2014, 7, 1, 12),
             datetime(2014, 7, 1, 13): datetime(2014, 7, 1, 14),
             datetime(2014, 7, 1, 15): datetime(2014, 7, 1, 16),
             datetime(2014, 7, 1, 19): datetime(2014, 7, 2, 10),
             datetime(2014, 7, 1, 16): datetime(2014, 7, 2, 9),
             datetime(2014, 7, 1, 16, 30, 15): datetime(2014, 7, 2, 9, 30, 15),
             datetime(2014, 7, 1, 17): datetime(2014, 7, 2, 10),
             datetime(2014, 7, 2, 11): datetime(2014, 7, 2, 12),
             # out of business hours
             datetime(2014, 7, 2, 8): datetime(2014, 7, 2, 10),
             datetime(2014, 7, 2, 19): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 2, 23): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 3, 0): datetime(2014, 7, 3, 10),
             # saturday
             datetime(2014, 7, 5, 15): datetime(2014, 7, 7, 10),
             datetime(2014, 7, 4, 17): datetime(2014, 7, 7, 10),
             datetime(2014, 7, 4, 16, 30): datetime(2014, 7, 7, 9, 30),
             datetime(2014, 7, 4, 16, 30, 30): datetime(2014, 7, 7, 9, 30,
                                                        30)}))

        tests.append((BusinessHour(
            4), {datetime(2014, 7, 1, 11): datetime(2014, 7, 1, 15),
                 datetime(2014, 7, 1, 13): datetime(2014, 7, 2, 9),
                 datetime(2014, 7, 1, 15): datetime(2014, 7, 2, 11),
                 datetime(2014, 7, 1, 16): datetime(2014, 7, 2, 12),
                 datetime(2014, 7, 1, 17): datetime(2014, 7, 2, 13),
                 datetime(2014, 7, 2, 11): datetime(2014, 7, 2, 15),
                 datetime(2014, 7, 2, 8): datetime(2014, 7, 2, 13),
                 datetime(2014, 7, 2, 19): datetime(2014, 7, 3, 13),
                 datetime(2014, 7, 2, 23): datetime(2014, 7, 3, 13),
                 datetime(2014, 7, 3, 0): datetime(2014, 7, 3, 13),
                 datetime(2014, 7, 5, 15): datetime(2014, 7, 7, 13),
                 datetime(2014, 7, 4, 17): datetime(2014, 7, 7, 13),
                 datetime(2014, 7, 4, 16, 30): datetime(2014, 7, 7, 12, 30),
                 datetime(2014, 7, 4, 16, 30, 30): datetime(2014, 7, 7, 12, 30,
                                                            30)}))

        tests.append(
            (BusinessHour(-1),
             {datetime(2014, 7, 1, 11): datetime(2014, 7, 1, 10),
              datetime(2014, 7, 1, 13): datetime(2014, 7, 1, 12),
              datetime(2014, 7, 1, 15): datetime(2014, 7, 1, 14),
              datetime(2014, 7, 1, 16): datetime(2014, 7, 1, 15),
              datetime(2014, 7, 1, 10): datetime(2014, 6, 30, 17),
              datetime(2014, 7, 1, 16, 30, 15): datetime(
                  2014, 7, 1, 15, 30, 15),
              datetime(2014, 7, 1, 9, 30, 15): datetime(
                  2014, 6, 30, 16, 30, 15),
              datetime(2014, 7, 1, 17): datetime(2014, 7, 1, 16),
              datetime(2014, 7, 1, 5): datetime(2014, 6, 30, 16),
              datetime(2014, 7, 2, 11): datetime(2014, 7, 2, 10),
              # out of business hours
              datetime(2014, 7, 2, 8): datetime(2014, 7, 1, 16),
              datetime(2014, 7, 2, 19): datetime(2014, 7, 2, 16),
              datetime(2014, 7, 2, 23): datetime(2014, 7, 2, 16),
              datetime(2014, 7, 3, 0): datetime(2014, 7, 2, 16),
              # saturday
              datetime(2014, 7, 5, 15): datetime(2014, 7, 4, 16),
              datetime(2014, 7, 7, 9): datetime(2014, 7, 4, 16),
              datetime(2014, 7, 7, 9, 30): datetime(2014, 7, 4, 16, 30),
              datetime(2014, 7, 7, 9, 30, 30): datetime(2014, 7, 4, 16, 30,
                                                        30)}))

        tests.append((BusinessHour(
            -4), {datetime(2014, 7, 1, 11): datetime(2014, 6, 30, 15),
                  datetime(2014, 7, 1, 13): datetime(2014, 6, 30, 17),
                  datetime(2014, 7, 1, 15): datetime(2014, 7, 1, 11),
                  datetime(2014, 7, 1, 16): datetime(2014, 7, 1, 12),
                  datetime(2014, 7, 1, 17): datetime(2014, 7, 1, 13),
                  datetime(2014, 7, 2, 11): datetime(2014, 7, 1, 15),
                  datetime(2014, 7, 2, 8): datetime(2014, 7, 1, 13),
                  datetime(2014, 7, 2, 19): datetime(2014, 7, 2, 13),
                  datetime(2014, 7, 2, 23): datetime(2014, 7, 2, 13),
                  datetime(2014, 7, 3, 0): datetime(2014, 7, 2, 13),
                  datetime(2014, 7, 5, 15): datetime(2014, 7, 4, 13),
                  datetime(2014, 7, 4, 18): datetime(2014, 7, 4, 13),
                  datetime(2014, 7, 7, 9, 30): datetime(2014, 7, 4, 13, 30),
                  datetime(2014, 7, 7, 9, 30, 30): datetime(2014, 7, 4, 13, 30,
                                                            30)}))

        tests.append((BusinessHour(start='13:00', end='16:00'),
                      {datetime(2014, 7, 1, 11): datetime(2014, 7, 1, 14),
                       datetime(2014, 7, 1, 13): datetime(2014, 7, 1, 14),
                       datetime(2014, 7, 1, 15): datetime(2014, 7, 2, 13),
                       datetime(2014, 7, 1, 19): datetime(2014, 7, 2, 14),
                       datetime(2014, 7, 1, 16): datetime(2014, 7, 2, 14),
                       datetime(2014, 7, 1, 15, 30, 15): datetime(2014, 7, 2,
                                                                  13, 30, 15),
                       datetime(2014, 7, 5, 15): datetime(2014, 7, 7, 14),
                       datetime(2014, 7, 4, 17): datetime(2014, 7, 7, 14)}))

        tests.append((BusinessHour(n=2, start='13:00', end='16:00'), {
            datetime(2014, 7, 1, 17): datetime(2014, 7, 2, 15),
            datetime(2014, 7, 2, 14): datetime(2014, 7, 3, 13),
            datetime(2014, 7, 2, 8): datetime(2014, 7, 2, 15),
            datetime(2014, 7, 2, 19): datetime(2014, 7, 3, 15),
            datetime(2014, 7, 2, 14, 30): datetime(2014, 7, 3, 13, 30),
            datetime(2014, 7, 3, 0): datetime(2014, 7, 3, 15),
            datetime(2014, 7, 5, 15): datetime(2014, 7, 7, 15),
            datetime(2014, 7, 4, 17): datetime(2014, 7, 7, 15),
            datetime(2014, 7, 4, 14, 30): datetime(2014, 7, 7, 13, 30),
            datetime(2014, 7, 4, 14, 30, 30): datetime(2014, 7, 7, 13, 30, 30)
        }))

        tests.append((BusinessHour(n=-1, start='13:00', end='16:00'),
                      {datetime(2014, 7, 2, 11): datetime(2014, 7, 1, 15),
                       datetime(2014, 7, 2, 13): datetime(2014, 7, 1, 15),
                       datetime(2014, 7, 2, 14): datetime(2014, 7, 1, 16),
                       datetime(2014, 7, 2, 15): datetime(2014, 7, 2, 14),
                       datetime(2014, 7, 2, 19): datetime(2014, 7, 2, 15),
                       datetime(2014, 7, 2, 16): datetime(2014, 7, 2, 15),
                       datetime(2014, 7, 2, 13, 30, 15): datetime(2014, 7, 1,
                                                                  15, 30, 15),
                       datetime(2014, 7, 5, 15): datetime(2014, 7, 4, 15),
                       datetime(2014, 7, 7, 11): datetime(2014, 7, 4, 15)}))

        tests.append((BusinessHour(n=-3, start='10:00', end='16:00'), {
            datetime(2014, 7, 1, 17): datetime(2014, 7, 1, 13),
            datetime(2014, 7, 2, 14): datetime(2014, 7, 2, 11),
            datetime(2014, 7, 2, 8): datetime(2014, 7, 1, 13),
            datetime(2014, 7, 2, 13): datetime(2014, 7, 1, 16),
            datetime(2014, 7, 2, 19): datetime(2014, 7, 2, 13),
            datetime(2014, 7, 2, 11, 30): datetime(2014, 7, 1, 14, 30),
            datetime(2014, 7, 3, 0): datetime(2014, 7, 2, 13),
            datetime(2014, 7, 4, 10): datetime(2014, 7, 3, 13),
            datetime(2014, 7, 5, 15): datetime(2014, 7, 4, 13),
            datetime(2014, 7, 4, 16): datetime(2014, 7, 4, 13),
            datetime(2014, 7, 4, 12, 30): datetime(2014, 7, 3, 15, 30),
            datetime(2014, 7, 4, 12, 30, 30): datetime(2014, 7, 3, 15, 30, 30)
        }))

        tests.append((BusinessHour(start='19:00', end='05:00'), {
            datetime(2014, 7, 1, 17): datetime(2014, 7, 1, 20),
            datetime(2014, 7, 2, 14): datetime(2014, 7, 2, 20),
            datetime(2014, 7, 2, 8): datetime(2014, 7, 2, 20),
            datetime(2014, 7, 2, 13): datetime(2014, 7, 2, 20),
            datetime(2014, 7, 2, 19): datetime(2014, 7, 2, 20),
            datetime(2014, 7, 2, 4, 30): datetime(2014, 7, 2, 19, 30),
            datetime(2014, 7, 3, 0): datetime(2014, 7, 3, 1),
            datetime(2014, 7, 4, 10): datetime(2014, 7, 4, 20),
            datetime(2014, 7, 4, 23): datetime(2014, 7, 5, 0),
            datetime(2014, 7, 5, 0): datetime(2014, 7, 5, 1),
            datetime(2014, 7, 5, 4): datetime(2014, 7, 7, 19),
            datetime(2014, 7, 5, 4, 30): datetime(2014, 7, 7, 19, 30),
            datetime(2014, 7, 5, 4, 30, 30): datetime(2014, 7, 7, 19, 30, 30)
        }))

        tests.append((BusinessHour(n=-1, start='19:00', end='05:00'), {
            datetime(2014, 7, 1, 17): datetime(2014, 7, 1, 4),
            datetime(2014, 7, 2, 14): datetime(2014, 7, 2, 4),
            datetime(2014, 7, 2, 8): datetime(2014, 7, 2, 4),
            datetime(2014, 7, 2, 13): datetime(2014, 7, 2, 4),
            datetime(2014, 7, 2, 20): datetime(2014, 7, 2, 5),
            datetime(2014, 7, 2, 19): datetime(2014, 7, 2, 4),
            datetime(2014, 7, 2, 19, 30): datetime(2014, 7, 2, 4, 30),
            datetime(2014, 7, 3, 0): datetime(2014, 7, 2, 23),
            datetime(2014, 7, 3, 6): datetime(2014, 7, 3, 4),
            datetime(2014, 7, 4, 23): datetime(2014, 7, 4, 22),
            datetime(2014, 7, 5, 0): datetime(2014, 7, 4, 23),
            datetime(2014, 7, 5, 4): datetime(2014, 7, 5, 3),
            datetime(2014, 7, 7, 19, 30): datetime(2014, 7, 5, 4, 30),
            datetime(2014, 7, 7, 19, 30, 30): datetime(2014, 7, 5, 4, 30, 30)
        }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_large_n(self):
        tests = []

        tests.append(
            (BusinessHour(40),  # A week later
             {datetime(2014, 7, 1, 11): datetime(2014, 7, 8, 11),
              datetime(2014, 7, 1, 13): datetime(2014, 7, 8, 13),
              datetime(2014, 7, 1, 15): datetime(2014, 7, 8, 15),
              datetime(2014, 7, 1, 16): datetime(2014, 7, 8, 16),
              datetime(2014, 7, 1, 17): datetime(2014, 7, 9, 9),
              datetime(2014, 7, 2, 11): datetime(2014, 7, 9, 11),
              datetime(2014, 7, 2, 8): datetime(2014, 7, 9, 9),
              datetime(2014, 7, 2, 19): datetime(2014, 7, 10, 9),
              datetime(2014, 7, 2, 23): datetime(2014, 7, 10, 9),
              datetime(2014, 7, 3, 0): datetime(2014, 7, 10, 9),
              datetime(2014, 7, 5, 15): datetime(2014, 7, 14, 9),
              datetime(2014, 7, 4, 18): datetime(2014, 7, 14, 9),
              datetime(2014, 7, 7, 9, 30): datetime(2014, 7, 14, 9, 30),
              datetime(2014, 7, 7, 9, 30, 30): datetime(2014, 7, 14, 9, 30,
                                                        30)}))

        tests.append(
            (BusinessHour(-25),  # 3 days and 1 hour before
             {datetime(2014, 7, 1, 11): datetime(2014, 6, 26, 10),
              datetime(2014, 7, 1, 13): datetime(2014, 6, 26, 12),
              datetime(2014, 7, 1, 9): datetime(2014, 6, 25, 16),
              datetime(2014, 7, 1, 10): datetime(2014, 6, 25, 17),
              datetime(2014, 7, 3, 11): datetime(2014, 6, 30, 10),
              datetime(2014, 7, 3, 8): datetime(2014, 6, 27, 16),
              datetime(2014, 7, 3, 19): datetime(2014, 6, 30, 16),
              datetime(2014, 7, 3, 23): datetime(2014, 6, 30, 16),
              datetime(2014, 7, 4, 9): datetime(2014, 6, 30, 16),
              datetime(2014, 7, 5, 15): datetime(2014, 7, 1, 16),
              datetime(2014, 7, 6, 18): datetime(2014, 7, 1, 16),
              datetime(2014, 7, 7, 9, 30): datetime(2014, 7, 1, 16, 30),
              datetime(2014, 7, 7, 10, 30, 30): datetime(2014, 7, 2, 9, 30,
                                                         30)}))

        # 5 days and 3 hours later
        tests.append((BusinessHour(28, start='21:00', end='02:00'),
                      {datetime(2014, 7, 1, 11): datetime(2014, 7, 9, 0),
                       datetime(2014, 7, 1, 22): datetime(2014, 7, 9, 1),
                       datetime(2014, 7, 1, 23): datetime(2014, 7, 9, 21),
                       datetime(2014, 7, 2, 2): datetime(2014, 7, 10, 0),
                       datetime(2014, 7, 3, 21): datetime(2014, 7, 11, 0),
                       datetime(2014, 7, 4, 1): datetime(2014, 7, 11, 23),
                       datetime(2014, 7, 4, 2): datetime(2014, 7, 12, 0),
                       datetime(2014, 7, 4, 3): datetime(2014, 7, 12, 0),
                       datetime(2014, 7, 5, 1): datetime(2014, 7, 14, 23),
                       datetime(2014, 7, 5, 15): datetime(2014, 7, 15, 0),
                       datetime(2014, 7, 6, 18): datetime(2014, 7, 15, 0),
                       datetime(2014, 7, 7, 1): datetime(2014, 7, 15, 0),
                       datetime(2014, 7, 7, 23, 30): datetime(2014, 7, 15, 21,
                                                              30)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_nanoseconds(self):
        tests = []

        tests.append((BusinessHour(),
                      {Timestamp('2014-07-04 15:00') + Nano(5): Timestamp(
                          '2014-07-04 16:00') + Nano(5),
                       Timestamp('2014-07-04 16:00') + Nano(5): Timestamp(
                           '2014-07-07 09:00') + Nano(5),
                       Timestamp('2014-07-04 16:00') - Nano(5): Timestamp(
                           '2014-07-04 17:00') - Nano(5)}))

        tests.append((BusinessHour(-1),
                      {Timestamp('2014-07-04 15:00') + Nano(5): Timestamp(
                          '2014-07-04 14:00') + Nano(5),
                       Timestamp('2014-07-04 10:00') + Nano(5): Timestamp(
                           '2014-07-04 09:00') + Nano(5),
                       Timestamp('2014-07-04 10:00') - Nano(5): Timestamp(
                           '2014-07-03 17:00') - Nano(5), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_offsets_compare_equal(self):
        # root cause of #456
        offset1 = self._offset()
        offset2 = self._offset()
        self.assertFalse(offset1 != offset2)

    def test_datetimeindex(self):
        idx1 = DatetimeIndex(start='2014-07-04 15:00', end='2014-07-08 10:00',
                             freq='BH')
        idx2 = DatetimeIndex(start='2014-07-04 15:00', periods=12, freq='BH')
        idx3 = DatetimeIndex(end='2014-07-08 10:00', periods=12, freq='BH')
        expected = DatetimeIndex(['2014-07-04 15:00', '2014-07-04 16:00',
                                  '2014-07-07 09:00',
                                  '2014-07-07 10:00', '2014-07-07 11:00',
                                  '2014-07-07 12:00',
                                  '2014-07-07 13:00', '2014-07-07 14:00',
                                  '2014-07-07 15:00',
                                  '2014-07-07 16:00', '2014-07-08 09:00',
                                  '2014-07-08 10:00'],
                                 freq='BH')
        for idx in [idx1, idx2, idx3]:
            tm.assert_index_equal(idx, expected)

        idx1 = DatetimeIndex(start='2014-07-04 15:45', end='2014-07-08 10:45',
                             freq='BH')
        idx2 = DatetimeIndex(start='2014-07-04 15:45', periods=12, freq='BH')
        idx3 = DatetimeIndex(end='2014-07-08 10:45', periods=12, freq='BH')

        expected = DatetimeIndex(['2014-07-04 15:45', '2014-07-04 16:45',
                                  '2014-07-07 09:45',
                                  '2014-07-07 10:45', '2014-07-07 11:45',
                                  '2014-07-07 12:45',
                                  '2014-07-07 13:45', '2014-07-07 14:45',
                                  '2014-07-07 15:45',
                                  '2014-07-07 16:45', '2014-07-08 09:45',
                                  '2014-07-08 10:45'],
                                 freq='BH')
        expected = idx1
        for idx in [idx1, idx2, idx3]:
            tm.assert_index_equal(idx, expected)


class TestCustomBusinessHour(Base):
    _multiprocess_can_split_ = True
    _offset = CustomBusinessHour

    def setUp(self):
        # 2014 Calendar to check custom holidays
        #   Sun Mon Tue Wed Thu Fri Sat
        #  6/22  23  24  25  26  27  28
        #    29  30 7/1   2   3   4   5
        #     6   7   8   9  10  11  12
        self.d = datetime(2014, 7, 1, 10, 00)
        self.offset1 = CustomBusinessHour(weekmask='Tue Wed Thu Fri')

        self.holidays = ['2014-06-27', datetime(2014, 6, 30),
                         np.datetime64('2014-07-02')]
        self.offset2 = CustomBusinessHour(holidays=self.holidays)

    def test_constructor_errors(self):
        from datetime import time as dt_time
        with tm.assertRaises(ValueError):
            CustomBusinessHour(start=dt_time(11, 0, 5))
        with tm.assertRaises(ValueError):
            CustomBusinessHour(start='AAA')
        with tm.assertRaises(ValueError):
            CustomBusinessHour(start='14:00:05')

    def test_different_normalize_equals(self):
        # equivalent in this special case
        offset = self._offset()
        offset2 = self._offset()
        offset2.normalize = True
        self.assertEqual(offset, offset2)

    def test_repr(self):
        self.assertEqual(repr(self.offset1),
                         '<CustomBusinessHour: CBH=09:00-17:00>')
        self.assertEqual(repr(self.offset2),
                         '<CustomBusinessHour: CBH=09:00-17:00>')

    def test_with_offset(self):
        expected = Timestamp('2014-07-01 13:00')

        self.assertEqual(self.d + CustomBusinessHour() * 3, expected)
        self.assertEqual(self.d + CustomBusinessHour(n=3), expected)

    def testEQ(self):
        for offset in [self.offset1, self.offset2]:
            self.assertEqual(offset, offset)

        self.assertNotEqual(CustomBusinessHour(), CustomBusinessHour(-1))
        self.assertEqual(CustomBusinessHour(start='09:00'),
                         CustomBusinessHour())
        self.assertNotEqual(CustomBusinessHour(start='09:00'),
                            CustomBusinessHour(start='09:01'))
        self.assertNotEqual(CustomBusinessHour(start='09:00', end='17:00'),
                            CustomBusinessHour(start='17:00', end='09:01'))

        self.assertNotEqual(CustomBusinessHour(weekmask='Tue Wed Thu Fri'),
                            CustomBusinessHour(weekmask='Mon Tue Wed Thu Fri'))
        self.assertNotEqual(CustomBusinessHour(holidays=['2014-06-27']),
                            CustomBusinessHour(holidays=['2014-06-28']))

    def test_hash(self):
        self.assertEqual(hash(self.offset1), hash(self.offset1))
        self.assertEqual(hash(self.offset2), hash(self.offset2))

    def testCall(self):
        self.assertEqual(self.offset1(self.d), datetime(2014, 7, 1, 11))
        self.assertEqual(self.offset2(self.d), datetime(2014, 7, 1, 11))

    def testRAdd(self):
        self.assertEqual(self.d + self.offset2, self.offset2 + self.d)

    def testSub(self):
        off = self.offset2
        self.assertRaises(Exception, off.__sub__, self.d)
        self.assertEqual(2 * off - off, off)

        self.assertEqual(self.d - self.offset2, self.d - (2 * off - off))

    def testRSub(self):
        self.assertEqual(self.d - self.offset2, (-self.offset2).apply(self.d))

    def testMult1(self):
        self.assertEqual(self.d + 5 * self.offset1, self.d + self._offset(5))

    def testMult2(self):
        self.assertEqual(self.d + (-3 * self._offset(-2)),
                         self.d + self._offset(6))

    def testRollback1(self):
        self.assertEqual(self.offset1.rollback(self.d), self.d)
        self.assertEqual(self.offset2.rollback(self.d), self.d)

        d = datetime(2014, 7, 1, 0)
        # 2014/07/01 is Tuesday, 06/30 is Monday(holiday)
        self.assertEqual(self.offset1.rollback(d), datetime(2014, 6, 27, 17))

        # 2014/6/30 and 2014/6/27 are holidays
        self.assertEqual(self.offset2.rollback(d), datetime(2014, 6, 26, 17))

    def testRollback2(self):
        self.assertEqual(self._offset(-3)
                         .rollback(datetime(2014, 7, 5, 15, 0)),
                         datetime(2014, 7, 4, 17, 0))

    def testRollforward1(self):
        self.assertEqual(self.offset1.rollforward(self.d), self.d)
        self.assertEqual(self.offset2.rollforward(self.d), self.d)

        d = datetime(2014, 7, 1, 0)
        self.assertEqual(self.offset1.rollforward(d), datetime(2014, 7, 1, 9))
        self.assertEqual(self.offset2.rollforward(d), datetime(2014, 7, 1, 9))

    def testRollforward2(self):
        self.assertEqual(self._offset(-3)
                         .rollforward(datetime(2014, 7, 5, 16, 0)),
                         datetime(2014, 7, 7, 9))

    def test_roll_date_object(self):
        offset = BusinessHour()

        dt = datetime(2014, 7, 6, 15, 0)

        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2014, 7, 4, 17))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2014, 7, 7, 9))

    def test_normalize(self):
        tests = []

        tests.append((CustomBusinessHour(normalize=True,
                                         holidays=self.holidays),
                      {datetime(2014, 7, 1, 8): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 17): datetime(2014, 7, 3),
                       datetime(2014, 7, 1, 16): datetime(2014, 7, 3),
                       datetime(2014, 7, 1, 23): datetime(2014, 7, 3),
                       datetime(2014, 7, 1, 0): datetime(2014, 7, 1),
                       datetime(2014, 7, 4, 15): datetime(2014, 7, 4),
                       datetime(2014, 7, 4, 15, 59): datetime(2014, 7, 4),
                       datetime(2014, 7, 4, 16, 30): datetime(2014, 7, 7),
                       datetime(2014, 7, 5, 23): datetime(2014, 7, 7),
                       datetime(2014, 7, 6, 10): datetime(2014, 7, 7)}))

        tests.append((CustomBusinessHour(-1, normalize=True,
                                         holidays=self.holidays),
                      {datetime(2014, 7, 1, 8): datetime(2014, 6, 26),
                       datetime(2014, 7, 1, 17): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 16): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 10): datetime(2014, 6, 26),
                       datetime(2014, 7, 1, 0): datetime(2014, 6, 26),
                       datetime(2014, 7, 7, 10): datetime(2014, 7, 4),
                       datetime(2014, 7, 7, 10, 1): datetime(2014, 7, 7),
                       datetime(2014, 7, 5, 23): datetime(2014, 7, 4),
                       datetime(2014, 7, 6, 10): datetime(2014, 7, 4)}))

        tests.append((CustomBusinessHour(1, normalize=True, start='17:00',
                                         end='04:00', holidays=self.holidays),
                      {datetime(2014, 7, 1, 8): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 17): datetime(2014, 7, 1),
                       datetime(2014, 7, 1, 23): datetime(2014, 7, 2),
                       datetime(2014, 7, 2, 2): datetime(2014, 7, 2),
                       datetime(2014, 7, 2, 3): datetime(2014, 7, 3),
                       datetime(2014, 7, 4, 23): datetime(2014, 7, 5),
                       datetime(2014, 7, 5, 2): datetime(2014, 7, 5),
                       datetime(2014, 7, 7, 2): datetime(2014, 7, 7),
                       datetime(2014, 7, 7, 17): datetime(2014, 7, 7)}))

        for offset, cases in tests:
            for dt, expected in compat.iteritems(cases):
                self.assertEqual(offset.apply(dt), expected)

    def test_onOffset(self):
        tests = []

        tests.append((CustomBusinessHour(start='10:00', end='15:00',
                                         holidays=self.holidays),
                      {datetime(2014, 7, 1, 9): False,
                       datetime(2014, 7, 1, 10): True,
                       datetime(2014, 7, 1, 15): True,
                       datetime(2014, 7, 1, 15, 1): False,
                       datetime(2014, 7, 5, 12): False,
                       datetime(2014, 7, 6, 12): False}))

        for offset, cases in tests:
            for dt, expected in compat.iteritems(cases):
                self.assertEqual(offset.onOffset(dt), expected)

    def test_apply(self):
        tests = []

        tests.append((
            CustomBusinessHour(holidays=self.holidays),
            {datetime(2014, 7, 1, 11): datetime(2014, 7, 1, 12),
             datetime(2014, 7, 1, 13): datetime(2014, 7, 1, 14),
             datetime(2014, 7, 1, 15): datetime(2014, 7, 1, 16),
             datetime(2014, 7, 1, 19): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 1, 16): datetime(2014, 7, 3, 9),
             datetime(2014, 7, 1, 16, 30, 15): datetime(2014, 7, 3, 9, 30, 15),
             datetime(2014, 7, 1, 17): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 2, 11): datetime(2014, 7, 3, 10),
             # out of business hours
             datetime(2014, 7, 2, 8): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 2, 19): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 2, 23): datetime(2014, 7, 3, 10),
             datetime(2014, 7, 3, 0): datetime(2014, 7, 3, 10),
             # saturday
             datetime(2014, 7, 5, 15): datetime(2014, 7, 7, 10),
             datetime(2014, 7, 4, 17): datetime(2014, 7, 7, 10),
             datetime(2014, 7, 4, 16, 30): datetime(2014, 7, 7, 9, 30),
             datetime(2014, 7, 4, 16, 30, 30): datetime(2014, 7, 7, 9, 30,
                                                        30)}))

        tests.append((
            CustomBusinessHour(4, holidays=self.holidays),
            {datetime(2014, 7, 1, 11): datetime(2014, 7, 1, 15),
             datetime(2014, 7, 1, 13): datetime(2014, 7, 3, 9),
             datetime(2014, 7, 1, 15): datetime(2014, 7, 3, 11),
             datetime(2014, 7, 1, 16): datetime(2014, 7, 3, 12),
             datetime(2014, 7, 1, 17): datetime(2014, 7, 3, 13),
             datetime(2014, 7, 2, 11): datetime(2014, 7, 3, 13),
             datetime(2014, 7, 2, 8): datetime(2014, 7, 3, 13),
             datetime(2014, 7, 2, 19): datetime(2014, 7, 3, 13),
             datetime(2014, 7, 2, 23): datetime(2014, 7, 3, 13),
             datetime(2014, 7, 3, 0): datetime(2014, 7, 3, 13),
             datetime(2014, 7, 5, 15): datetime(2014, 7, 7, 13),
             datetime(2014, 7, 4, 17): datetime(2014, 7, 7, 13),
             datetime(2014, 7, 4, 16, 30): datetime(2014, 7, 7, 12, 30),
             datetime(2014, 7, 4, 16, 30, 30): datetime(2014, 7, 7, 12, 30,
                                                        30)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_nanoseconds(self):
        tests = []

        tests.append((CustomBusinessHour(holidays=self.holidays),
                      {Timestamp('2014-07-01 15:00') + Nano(5): Timestamp(
                          '2014-07-01 16:00') + Nano(5),
                       Timestamp('2014-07-01 16:00') + Nano(5): Timestamp(
                           '2014-07-03 09:00') + Nano(5),
                       Timestamp('2014-07-01 16:00') - Nano(5): Timestamp(
                           '2014-07-01 17:00') - Nano(5)}))

        tests.append((CustomBusinessHour(-1, holidays=self.holidays),
                      {Timestamp('2014-07-01 15:00') + Nano(5): Timestamp(
                          '2014-07-01 14:00') + Nano(5),
                       Timestamp('2014-07-01 10:00') + Nano(5): Timestamp(
                           '2014-07-01 09:00') + Nano(5),
                       Timestamp('2014-07-01 10:00') - Nano(5): Timestamp(
                           '2014-06-26 17:00') - Nano(5), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)


class TestCustomBusinessDay(Base):
    _multiprocess_can_split_ = True
    _offset = CDay

    def setUp(self):
        self.d = datetime(2008, 1, 1)
        self.nd = np_datetime64_compat('2008-01-01 00:00:00Z')

        self.offset = CDay()
        self.offset2 = CDay(2)

    def test_different_normalize_equals(self):
        # equivalent in this special case
        offset = CDay()
        offset2 = CDay()
        offset2.normalize = True
        self.assertEqual(offset, offset2)

    def test_repr(self):
        assert repr(self.offset) == '<CustomBusinessDay>'
        assert repr(self.offset2) == '<2 * CustomBusinessDays>'

        expected = '<BusinessDay: offset=datetime.timedelta(1)>'
        assert repr(self.offset + timedelta(1)) == expected

    def test_with_offset(self):
        offset = self.offset + timedelta(hours=2)

        assert (self.d + offset) == datetime(2008, 1, 2, 2)

    def testEQ(self):
        self.assertEqual(self.offset2, self.offset2)

    def test_mul(self):
        pass

    def test_hash(self):
        self.assertEqual(hash(self.offset2), hash(self.offset2))

    def testCall(self):
        self.assertEqual(self.offset2(self.d), datetime(2008, 1, 3))
        self.assertEqual(self.offset2(self.nd), datetime(2008, 1, 3))

    def testRAdd(self):
        self.assertEqual(self.d + self.offset2, self.offset2 + self.d)

    def testSub(self):
        off = self.offset2
        self.assertRaises(Exception, off.__sub__, self.d)
        self.assertEqual(2 * off - off, off)

        self.assertEqual(self.d - self.offset2, self.d + CDay(-2))

    def testRSub(self):
        self.assertEqual(self.d - self.offset2, (-self.offset2).apply(self.d))

    def testMult1(self):
        self.assertEqual(self.d + 10 * self.offset, self.d + CDay(10))

    def testMult2(self):
        self.assertEqual(self.d + (-5 * CDay(-10)), self.d + CDay(50))

    def testRollback1(self):
        self.assertEqual(CDay(10).rollback(self.d), self.d)

    def testRollback2(self):
        self.assertEqual(
            CDay(10).rollback(datetime(2008, 1, 5)), datetime(2008, 1, 4))

    def testRollforward1(self):
        self.assertEqual(CDay(10).rollforward(self.d), self.d)

    def testRollforward2(self):
        self.assertEqual(
            CDay(10).rollforward(datetime(2008, 1, 5)), datetime(2008, 1, 7))

    def test_roll_date_object(self):
        offset = CDay()

        dt = date(2012, 9, 15)

        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 14))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 17))

        offset = offsets.Day()
        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

    def test_onOffset(self):
        tests = [(CDay(), datetime(2008, 1, 1), True),
                 (CDay(), datetime(2008, 1, 5), False)]

        for offset, d, expected in tests:
            assertOnOffset(offset, d, expected)

    def test_apply(self):
        from pandas.core.datetools import cday
        tests = []

        tests.append((cday, {datetime(2008, 1, 1): datetime(2008, 1, 2),
                             datetime(2008, 1, 4): datetime(2008, 1, 7),
                             datetime(2008, 1, 5): datetime(2008, 1, 7),
                             datetime(2008, 1, 6): datetime(2008, 1, 7),
                             datetime(2008, 1, 7): datetime(2008, 1, 8)}))

        tests.append((2 * cday, {datetime(2008, 1, 1): datetime(2008, 1, 3),
                                 datetime(2008, 1, 4): datetime(2008, 1, 8),
                                 datetime(2008, 1, 5): datetime(2008, 1, 8),
                                 datetime(2008, 1, 6): datetime(2008, 1, 8),
                                 datetime(2008, 1, 7): datetime(2008, 1, 9)}))

        tests.append((-cday, {datetime(2008, 1, 1): datetime(2007, 12, 31),
                              datetime(2008, 1, 4): datetime(2008, 1, 3),
                              datetime(2008, 1, 5): datetime(2008, 1, 4),
                              datetime(2008, 1, 6): datetime(2008, 1, 4),
                              datetime(2008, 1, 7): datetime(2008, 1, 4),
                              datetime(2008, 1, 8): datetime(2008, 1, 7)}))

        tests.append((-2 * cday, {datetime(2008, 1, 1): datetime(2007, 12, 28),
                                  datetime(2008, 1, 4): datetime(2008, 1, 2),
                                  datetime(2008, 1, 5): datetime(2008, 1, 3),
                                  datetime(2008, 1, 6): datetime(2008, 1, 3),
                                  datetime(2008, 1, 7): datetime(2008, 1, 3),
                                  datetime(2008, 1, 8): datetime(2008, 1, 4),
                                  datetime(2008, 1, 9): datetime(2008, 1, 7)}))

        tests.append((CDay(0), {datetime(2008, 1, 1): datetime(2008, 1, 1),
                                datetime(2008, 1, 4): datetime(2008, 1, 4),
                                datetime(2008, 1, 5): datetime(2008, 1, 7),
                                datetime(2008, 1, 6): datetime(2008, 1, 7),
                                datetime(2008, 1, 7): datetime(2008, 1, 7)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_large_n(self):
        dt = datetime(2012, 10, 23)

        result = dt + CDay(10)
        self.assertEqual(result, datetime(2012, 11, 6))

        result = dt + CDay(100) - CDay(100)
        self.assertEqual(result, dt)

        off = CDay() * 6
        rs = datetime(2012, 1, 1) - off
        xp = datetime(2011, 12, 23)
        self.assertEqual(rs, xp)

        st = datetime(2011, 12, 18)
        rs = st + off
        xp = datetime(2011, 12, 26)
        self.assertEqual(rs, xp)

    def test_apply_corner(self):
        self.assertRaises(Exception, CDay().apply, BMonthEnd())

    def test_offsets_compare_equal(self):
        # root cause of #456
        offset1 = CDay()
        offset2 = CDay()
        self.assertFalse(offset1 != offset2)

    def test_holidays(self):
        # Define a TradingDay offset
        holidays = ['2012-05-01', datetime(2013, 5, 1),
                    np.datetime64('2014-05-01')]
        tday = CDay(holidays=holidays)
        for year in range(2012, 2015):
            dt = datetime(year, 4, 30)
            xp = datetime(year, 5, 2)
            rs = dt + tday
            self.assertEqual(rs, xp)

    def test_weekmask(self):
        weekmask_saudi = 'Sat Sun Mon Tue Wed'  # Thu-Fri Weekend
        weekmask_uae = '1111001'  # Fri-Sat Weekend
        weekmask_egypt = [1, 1, 1, 1, 0, 0, 1]  # Fri-Sat Weekend
        bday_saudi = CDay(weekmask=weekmask_saudi)
        bday_uae = CDay(weekmask=weekmask_uae)
        bday_egypt = CDay(weekmask=weekmask_egypt)
        dt = datetime(2013, 5, 1)
        xp_saudi = datetime(2013, 5, 4)
        xp_uae = datetime(2013, 5, 2)
        xp_egypt = datetime(2013, 5, 2)
        self.assertEqual(xp_saudi, dt + bday_saudi)
        self.assertEqual(xp_uae, dt + bday_uae)
        self.assertEqual(xp_egypt, dt + bday_egypt)
        xp2 = datetime(2013, 5, 5)
        self.assertEqual(xp2, dt + 2 * bday_saudi)
        self.assertEqual(xp2, dt + 2 * bday_uae)
        self.assertEqual(xp2, dt + 2 * bday_egypt)

    def test_weekmask_and_holidays(self):
        weekmask_egypt = 'Sun Mon Tue Wed Thu'  # Fri-Sat Weekend
        holidays = ['2012-05-01', datetime(2013, 5, 1),
                    np.datetime64('2014-05-01')]
        bday_egypt = CDay(holidays=holidays, weekmask=weekmask_egypt)
        dt = datetime(2013, 4, 30)
        xp_egypt = datetime(2013, 5, 5)
        self.assertEqual(xp_egypt, dt + 2 * bday_egypt)

    def test_calendar(self):
        calendar = USFederalHolidayCalendar()
        dt = datetime(2014, 1, 17)
        assertEq(CDay(calendar=calendar), dt, datetime(2014, 1, 21))

    def test_roundtrip_pickle(self):
        def _check_roundtrip(obj):
            unpickled = self.round_trip_pickle(obj)
            self.assertEqual(unpickled, obj)

        _check_roundtrip(self.offset)
        _check_roundtrip(self.offset2)
        _check_roundtrip(self.offset * 2)

    def test_pickle_compat_0_14_1(self):
        hdays = [datetime(2013, 1, 1) for ele in range(4)]

        pth = tm.get_data_path()

        cday0_14_1 = read_pickle(os.path.join(pth, 'cday-0.14.1.pickle'))
        cday = CDay(holidays=hdays)
        self.assertEqual(cday, cday0_14_1)


class CustomBusinessMonthBase(object):
    _multiprocess_can_split_ = True

    def setUp(self):
        self.d = datetime(2008, 1, 1)

        self.offset = self._object()
        self.offset2 = self._object(2)

    def testEQ(self):
        self.assertEqual(self.offset2, self.offset2)

    def test_mul(self):
        pass

    def test_hash(self):
        self.assertEqual(hash(self.offset2), hash(self.offset2))

    def testRAdd(self):
        self.assertEqual(self.d + self.offset2, self.offset2 + self.d)

    def testSub(self):
        off = self.offset2
        self.assertRaises(Exception, off.__sub__, self.d)
        self.assertEqual(2 * off - off, off)

        self.assertEqual(self.d - self.offset2, self.d + self._object(-2))

    def testRSub(self):
        self.assertEqual(self.d - self.offset2, (-self.offset2).apply(self.d))

    def testMult1(self):
        self.assertEqual(self.d + 10 * self.offset, self.d + self._object(10))

    def testMult2(self):
        self.assertEqual(self.d + (-5 * self._object(-10)),
                         self.d + self._object(50))

    def test_offsets_compare_equal(self):
        offset1 = self._object()
        offset2 = self._object()
        self.assertFalse(offset1 != offset2)

    def test_roundtrip_pickle(self):
        def _check_roundtrip(obj):
            unpickled = self.round_trip_pickle(obj)
            self.assertEqual(unpickled, obj)

        _check_roundtrip(self._object())
        _check_roundtrip(self._object(2))
        _check_roundtrip(self._object() * 2)


class TestCustomBusinessMonthEnd(CustomBusinessMonthBase, Base):
    _object = CBMonthEnd

    def test_different_normalize_equals(self):
        # equivalent in this special case
        offset = CBMonthEnd()
        offset2 = CBMonthEnd()
        offset2.normalize = True
        self.assertEqual(offset, offset2)

    def test_repr(self):
        assert repr(self.offset) == '<CustomBusinessMonthEnd>'
        assert repr(self.offset2) == '<2 * CustomBusinessMonthEnds>'

    def testCall(self):
        self.assertEqual(self.offset2(self.d), datetime(2008, 2, 29))

    def testRollback1(self):
        self.assertEqual(
            CDay(10).rollback(datetime(2007, 12, 31)), datetime(2007, 12, 31))

    def testRollback2(self):
        self.assertEqual(CBMonthEnd(10).rollback(self.d),
                         datetime(2007, 12, 31))

    def testRollforward1(self):
        self.assertEqual(CBMonthEnd(10).rollforward(
            self.d), datetime(2008, 1, 31))

    def test_roll_date_object(self):
        offset = CBMonthEnd()

        dt = date(2012, 9, 15)

        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 8, 31))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 28))

        offset = offsets.Day()
        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

    def test_onOffset(self):
        tests = [(CBMonthEnd(), datetime(2008, 1, 31), True),
                 (CBMonthEnd(), datetime(2008, 1, 1), False)]

        for offset, d, expected in tests:
            assertOnOffset(offset, d, expected)

    def test_apply(self):
        cbm = CBMonthEnd()
        tests = []

        tests.append((cbm, {datetime(2008, 1, 1): datetime(2008, 1, 31),
                            datetime(2008, 2, 7): datetime(2008, 2, 29)}))

        tests.append((2 * cbm, {datetime(2008, 1, 1): datetime(2008, 2, 29),
                                datetime(2008, 2, 7): datetime(2008, 3, 31)}))

        tests.append((-cbm, {datetime(2008, 1, 1): datetime(2007, 12, 31),
                             datetime(2008, 2, 8): datetime(2008, 1, 31)}))

        tests.append((-2 * cbm, {datetime(2008, 1, 1): datetime(2007, 11, 30),
                                 datetime(2008, 2, 9): datetime(2007, 12, 31)}
                      ))

        tests.append((CBMonthEnd(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 2, 7): datetime(2008, 2, 29)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_large_n(self):
        dt = datetime(2012, 10, 23)

        result = dt + CBMonthEnd(10)
        self.assertEqual(result, datetime(2013, 7, 31))

        result = dt + CDay(100) - CDay(100)
        self.assertEqual(result, dt)

        off = CBMonthEnd() * 6
        rs = datetime(2012, 1, 1) - off
        xp = datetime(2011, 7, 29)
        self.assertEqual(rs, xp)

        st = datetime(2011, 12, 18)
        rs = st + off
        xp = datetime(2012, 5, 31)
        self.assertEqual(rs, xp)

    def test_holidays(self):
        # Define a TradingDay offset
        holidays = ['2012-01-31', datetime(2012, 2, 28),
                    np.datetime64('2012-02-29')]
        bm_offset = CBMonthEnd(holidays=holidays)
        dt = datetime(2012, 1, 1)
        self.assertEqual(dt + bm_offset, datetime(2012, 1, 30))
        self.assertEqual(dt + 2 * bm_offset, datetime(2012, 2, 27))

    def test_datetimeindex(self):
        from pandas.tseries.holiday import USFederalHolidayCalendar
        hcal = USFederalHolidayCalendar()
        freq = CBMonthEnd(calendar=hcal)

        self.assertEqual(DatetimeIndex(start='20120101', end='20130101',
                                       freq=freq).tolist()[0],
                         datetime(2012, 1, 31))


class TestCustomBusinessMonthBegin(CustomBusinessMonthBase, Base):
    _object = CBMonthBegin

    def test_different_normalize_equals(self):
        # equivalent in this special case
        offset = CBMonthBegin()
        offset2 = CBMonthBegin()
        offset2.normalize = True
        self.assertEqual(offset, offset2)

    def test_repr(self):
        assert repr(self.offset) == '<CustomBusinessMonthBegin>'
        assert repr(self.offset2) == '<2 * CustomBusinessMonthBegins>'

    def testCall(self):
        self.assertEqual(self.offset2(self.d), datetime(2008, 3, 3))

    def testRollback1(self):
        self.assertEqual(
            CDay(10).rollback(datetime(2007, 12, 31)), datetime(2007, 12, 31))

    def testRollback2(self):
        self.assertEqual(CBMonthBegin(10).rollback(self.d),
                         datetime(2008, 1, 1))

    def testRollforward1(self):
        self.assertEqual(CBMonthBegin(10).rollforward(
            self.d), datetime(2008, 1, 1))

    def test_roll_date_object(self):
        offset = CBMonthBegin()

        dt = date(2012, 9, 15)

        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 3))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 10, 1))

        offset = offsets.Day()
        result = offset.rollback(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

        result = offset.rollforward(dt)
        self.assertEqual(result, datetime(2012, 9, 15))

    def test_onOffset(self):
        tests = [(CBMonthBegin(), datetime(2008, 1, 1), True),
                 (CBMonthBegin(), datetime(2008, 1, 31), False)]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_apply(self):
        cbm = CBMonthBegin()
        tests = []

        tests.append((cbm, {datetime(2008, 1, 1): datetime(2008, 2, 1),
                            datetime(2008, 2, 7): datetime(2008, 3, 3)}))

        tests.append((2 * cbm, {datetime(2008, 1, 1): datetime(2008, 3, 3),
                                datetime(2008, 2, 7): datetime(2008, 4, 1)}))

        tests.append((-cbm, {datetime(2008, 1, 1): datetime(2007, 12, 3),
                             datetime(2008, 2, 8): datetime(2008, 2, 1)}))

        tests.append((-2 * cbm, {datetime(2008, 1, 1): datetime(2007, 11, 1),
                                 datetime(2008, 2, 9): datetime(2008, 1, 1)}))

        tests.append((CBMonthBegin(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 1, 7): datetime(2008, 2, 1)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_large_n(self):
        dt = datetime(2012, 10, 23)

        result = dt + CBMonthBegin(10)
        self.assertEqual(result, datetime(2013, 8, 1))

        result = dt + CDay(100) - CDay(100)
        self.assertEqual(result, dt)

        off = CBMonthBegin() * 6
        rs = datetime(2012, 1, 1) - off
        xp = datetime(2011, 7, 1)
        self.assertEqual(rs, xp)

        st = datetime(2011, 12, 18)
        rs = st + off
        xp = datetime(2012, 6, 1)
        self.assertEqual(rs, xp)

    def test_holidays(self):
        # Define a TradingDay offset
        holidays = ['2012-02-01', datetime(2012, 2, 2),
                    np.datetime64('2012-03-01')]
        bm_offset = CBMonthBegin(holidays=holidays)
        dt = datetime(2012, 1, 1)
        self.assertEqual(dt + bm_offset, datetime(2012, 1, 2))
        self.assertEqual(dt + 2 * bm_offset, datetime(2012, 2, 3))

    def test_datetimeindex(self):
        hcal = USFederalHolidayCalendar()
        cbmb = CBMonthBegin(calendar=hcal)
        self.assertEqual(DatetimeIndex(start='20120101', end='20130101',
                                       freq=cbmb).tolist()[0],
                         datetime(2012, 1, 3))


def assertOnOffset(offset, date, expected):
    actual = offset.onOffset(date)
    assert actual == expected, ("\nExpected: %s\nActual: %s\nFor Offset: %s)"
                                "\nAt Date: %s" %
                                (expected, actual, offset, date))


class TestWeek(Base):
    _offset = Week

    def test_repr(self):
        self.assertEqual(repr(Week(weekday=0)), "<Week: weekday=0>")
        self.assertEqual(repr(Week(n=-1, weekday=0)), "<-1 * Week: weekday=0>")
        self.assertEqual(repr(Week(n=-2, weekday=0)),
                         "<-2 * Weeks: weekday=0>")

    def test_corner(self):
        self.assertRaises(ValueError, Week, weekday=7)
        assertRaisesRegexp(ValueError, "Day must be", Week, weekday=-1)

    def test_isAnchored(self):
        self.assertTrue(Week(weekday=0).isAnchored())
        self.assertFalse(Week().isAnchored())
        self.assertFalse(Week(2, weekday=2).isAnchored())
        self.assertFalse(Week(2).isAnchored())

    def test_offset(self):
        tests = []

        tests.append((Week(),  # not business week
                      {datetime(2008, 1, 1): datetime(2008, 1, 8),
                       datetime(2008, 1, 4): datetime(2008, 1, 11),
                       datetime(2008, 1, 5): datetime(2008, 1, 12),
                       datetime(2008, 1, 6): datetime(2008, 1, 13),
                       datetime(2008, 1, 7): datetime(2008, 1, 14)}))

        tests.append((Week(weekday=0),  # Mon
                      {datetime(2007, 12, 31): datetime(2008, 1, 7),
                       datetime(2008, 1, 4): datetime(2008, 1, 7),
                       datetime(2008, 1, 5): datetime(2008, 1, 7),
                       datetime(2008, 1, 6): datetime(2008, 1, 7),
                       datetime(2008, 1, 7): datetime(2008, 1, 14)}))

        tests.append((Week(0, weekday=0),  # n=0 -> roll forward. Mon
                      {datetime(2007, 12, 31): datetime(2007, 12, 31),
                       datetime(2008, 1, 4): datetime(2008, 1, 7),
                       datetime(2008, 1, 5): datetime(2008, 1, 7),
                       datetime(2008, 1, 6): datetime(2008, 1, 7),
                       datetime(2008, 1, 7): datetime(2008, 1, 7)}))

        tests.append((Week(-2, weekday=1),  # n=0 -> roll forward. Mon
                      {datetime(2010, 4, 6): datetime(2010, 3, 23),
                       datetime(2010, 4, 8): datetime(2010, 3, 30),
                       datetime(2010, 4, 5): datetime(2010, 3, 23)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_onOffset(self):
        for weekday in range(7):
            offset = Week(weekday=weekday)

            for day in range(1, 8):
                date = datetime(2008, 1, day)

                if day % 7 == weekday:
                    expected = True
                else:
                    expected = False
            assertOnOffset(offset, date, expected)

    def test_offsets_compare_equal(self):
        # root cause of #456
        offset1 = Week()
        offset2 = Week()
        self.assertFalse(offset1 != offset2)


class TestWeekOfMonth(Base):
    _offset = WeekOfMonth

    def test_constructor(self):
        assertRaisesRegexp(ValueError, "^N cannot be 0", WeekOfMonth, n=0,
                           week=1, weekday=1)
        assertRaisesRegexp(ValueError, "^Week", WeekOfMonth, n=1, week=4,
                           weekday=0)
        assertRaisesRegexp(ValueError, "^Week", WeekOfMonth, n=1, week=-1,
                           weekday=0)
        assertRaisesRegexp(ValueError, "^Day", WeekOfMonth, n=1, week=0,
                           weekday=-1)
        assertRaisesRegexp(ValueError, "^Day", WeekOfMonth, n=1, week=0,
                           weekday=7)

    def test_repr(self):
        self.assertEqual(repr(WeekOfMonth(weekday=1, week=2)),
                         "<WeekOfMonth: week=2, weekday=1>")

    def test_offset(self):
        date1 = datetime(2011, 1, 4)  # 1st Tuesday of Month
        date2 = datetime(2011, 1, 11)  # 2nd Tuesday of Month
        date3 = datetime(2011, 1, 18)  # 3rd Tuesday of Month
        date4 = datetime(2011, 1, 25)  # 4th Tuesday of Month

        # see for loop for structure
        test_cases = [
            (-2, 2, 1, date1, datetime(2010, 11, 16)),
            (-2, 2, 1, date2, datetime(2010, 11, 16)),
            (-2, 2, 1, date3, datetime(2010, 11, 16)),
            (-2, 2, 1, date4, datetime(2010, 12, 21)),

            (-1, 2, 1, date1, datetime(2010, 12, 21)),
            (-1, 2, 1, date2, datetime(2010, 12, 21)),
            (-1, 2, 1, date3, datetime(2010, 12, 21)),
            (-1, 2, 1, date4, datetime(2011, 1, 18)),

            (1, 0, 0, date1, datetime(2011, 2, 7)),
            (1, 0, 0, date2, datetime(2011, 2, 7)),
            (1, 0, 0, date3, datetime(2011, 2, 7)),
            (1, 0, 0, date4, datetime(2011, 2, 7)),
            (1, 0, 1, date1, datetime(2011, 2, 1)),
            (1, 0, 1, date2, datetime(2011, 2, 1)),
            (1, 0, 1, date3, datetime(2011, 2, 1)),
            (1, 0, 1, date4, datetime(2011, 2, 1)),
            (1, 0, 2, date1, datetime(2011, 1, 5)),
            (1, 0, 2, date2, datetime(2011, 2, 2)),
            (1, 0, 2, date3, datetime(2011, 2, 2)),
            (1, 0, 2, date4, datetime(2011, 2, 2)),

            (1, 2, 1, date1, datetime(2011, 1, 18)),
            (1, 2, 1, date2, datetime(2011, 1, 18)),
            (1, 2, 1, date3, datetime(2011, 2, 15)),
            (1, 2, 1, date4, datetime(2011, 2, 15)),

            (2, 2, 1, date1, datetime(2011, 2, 15)),
            (2, 2, 1, date2, datetime(2011, 2, 15)),
            (2, 2, 1, date3, datetime(2011, 3, 15)),
            (2, 2, 1, date4, datetime(2011, 3, 15)),
        ]

        for n, week, weekday, dt, expected in test_cases:
            offset = WeekOfMonth(n, week=week, weekday=weekday)
            assertEq(offset, dt, expected)

        # try subtracting
        result = datetime(2011, 2, 1) - WeekOfMonth(week=1, weekday=2)
        self.assertEqual(result, datetime(2011, 1, 12))
        result = datetime(2011, 2, 3) - WeekOfMonth(week=0, weekday=2)
        self.assertEqual(result, datetime(2011, 2, 2))

    def test_onOffset(self):
        test_cases = [
            (0, 0, datetime(2011, 2, 7), True),
            (0, 0, datetime(2011, 2, 6), False),
            (0, 0, datetime(2011, 2, 14), False),
            (1, 0, datetime(2011, 2, 14), True),
            (0, 1, datetime(2011, 2, 1), True),
            (0, 1, datetime(2011, 2, 8), False),
        ]

        for week, weekday, dt, expected in test_cases:
            offset = WeekOfMonth(week=week, weekday=weekday)
            self.assertEqual(offset.onOffset(dt), expected)


class TestLastWeekOfMonth(Base):
    _offset = LastWeekOfMonth

    def test_constructor(self):
        assertRaisesRegexp(ValueError, "^N cannot be 0", LastWeekOfMonth, n=0,
                           weekday=1)

        assertRaisesRegexp(ValueError, "^Day", LastWeekOfMonth, n=1,
                           weekday=-1)
        assertRaisesRegexp(ValueError, "^Day", LastWeekOfMonth, n=1, weekday=7)

    def test_offset(self):
        # Saturday
        last_sat = datetime(2013, 8, 31)
        next_sat = datetime(2013, 9, 28)
        offset_sat = LastWeekOfMonth(n=1, weekday=5)

        one_day_before = (last_sat + timedelta(days=-1))
        self.assertEqual(one_day_before + offset_sat, last_sat)

        one_day_after = (last_sat + timedelta(days=+1))
        self.assertEqual(one_day_after + offset_sat, next_sat)

        # Test On that day
        self.assertEqual(last_sat + offset_sat, next_sat)

        # Thursday

        offset_thur = LastWeekOfMonth(n=1, weekday=3)
        last_thurs = datetime(2013, 1, 31)
        next_thurs = datetime(2013, 2, 28)

        one_day_before = last_thurs + timedelta(days=-1)
        self.assertEqual(one_day_before + offset_thur, last_thurs)

        one_day_after = last_thurs + timedelta(days=+1)
        self.assertEqual(one_day_after + offset_thur, next_thurs)

        # Test on that day
        self.assertEqual(last_thurs + offset_thur, next_thurs)

        three_before = last_thurs + timedelta(days=-3)
        self.assertEqual(three_before + offset_thur, last_thurs)

        two_after = last_thurs + timedelta(days=+2)
        self.assertEqual(two_after + offset_thur, next_thurs)

        offset_sunday = LastWeekOfMonth(n=1, weekday=WeekDay.SUN)
        self.assertEqual(datetime(2013, 7, 31) +
                         offset_sunday, datetime(2013, 8, 25))

    def test_onOffset(self):
        test_cases = [
            (WeekDay.SUN, datetime(2013, 1, 27), True),
            (WeekDay.SAT, datetime(2013, 3, 30), True),
            (WeekDay.MON, datetime(2013, 2, 18), False),  # Not the last Mon
            (WeekDay.SUN, datetime(2013, 2, 25), False),  # Not a SUN
            (WeekDay.MON, datetime(2013, 2, 25), True),
            (WeekDay.SAT, datetime(2013, 11, 30), True),

            (WeekDay.SAT, datetime(2006, 8, 26), True),
            (WeekDay.SAT, datetime(2007, 8, 25), True),
            (WeekDay.SAT, datetime(2008, 8, 30), True),
            (WeekDay.SAT, datetime(2009, 8, 29), True),
            (WeekDay.SAT, datetime(2010, 8, 28), True),
            (WeekDay.SAT, datetime(2011, 8, 27), True),
            (WeekDay.SAT, datetime(2019, 8, 31), True),
        ]

        for weekday, dt, expected in test_cases:
            offset = LastWeekOfMonth(weekday=weekday)
            self.assertEqual(offset.onOffset(dt), expected, msg=date)


class TestBMonthBegin(Base):
    _offset = BMonthBegin

    def test_offset(self):
        tests = []

        tests.append((BMonthBegin(),
                      {datetime(2008, 1, 1): datetime(2008, 2, 1),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2006, 12, 29): datetime(2007, 1, 1),
                       datetime(2006, 12, 31): datetime(2007, 1, 1),
                       datetime(2006, 9, 1): datetime(2006, 10, 2),
                       datetime(2007, 1, 1): datetime(2007, 2, 1),
                       datetime(2006, 12, 1): datetime(2007, 1, 1)}))

        tests.append((BMonthBegin(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2006, 10, 2): datetime(2006, 10, 2),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2006, 12, 29): datetime(2007, 1, 1),
                       datetime(2006, 12, 31): datetime(2007, 1, 1),
                       datetime(2006, 9, 15): datetime(2006, 10, 2)}))

        tests.append((BMonthBegin(2),
                      {datetime(2008, 1, 1): datetime(2008, 3, 3),
                       datetime(2008, 1, 15): datetime(2008, 3, 3),
                       datetime(2006, 12, 29): datetime(2007, 2, 1),
                       datetime(2006, 12, 31): datetime(2007, 2, 1),
                       datetime(2007, 1, 1): datetime(2007, 3, 1),
                       datetime(2006, 11, 1): datetime(2007, 1, 1)}))

        tests.append((BMonthBegin(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 1),
                       datetime(2008, 6, 30): datetime(2008, 6, 2),
                       datetime(2008, 6, 1): datetime(2008, 5, 1),
                       datetime(2008, 3, 10): datetime(2008, 3, 3),
                       datetime(2008, 12, 31): datetime(2008, 12, 1),
                       datetime(2006, 12, 29): datetime(2006, 12, 1),
                       datetime(2006, 12, 30): datetime(2006, 12, 1),
                       datetime(2007, 1, 1): datetime(2006, 12, 1)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_onOffset(self):

        tests = [(BMonthBegin(), datetime(2007, 12, 31), False),
                 (BMonthBegin(), datetime(2008, 1, 1), True),
                 (BMonthBegin(), datetime(2001, 4, 2), True),
                 (BMonthBegin(), datetime(2008, 3, 3), True)]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_offsets_compare_equal(self):
        # root cause of #456
        offset1 = BMonthBegin()
        offset2 = BMonthBegin()
        self.assertFalse(offset1 != offset2)


class TestBMonthEnd(Base):
    _offset = BMonthEnd

    def test_offset(self):
        tests = []

        tests.append((BMonthEnd(),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 2, 29),
                       datetime(2006, 12, 29): datetime(2007, 1, 31),
                       datetime(2006, 12, 31): datetime(2007, 1, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 31),
                       datetime(2006, 12, 1): datetime(2006, 12, 29)}))

        tests.append((BMonthEnd(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 1, 31),
                       datetime(2006, 12, 29): datetime(2006, 12, 29),
                       datetime(2006, 12, 31): datetime(2007, 1, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 31)}))

        tests.append((BMonthEnd(2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 29),
                       datetime(2008, 1, 31): datetime(2008, 3, 31),
                       datetime(2006, 12, 29): datetime(2007, 2, 28),
                       datetime(2006, 12, 31): datetime(2007, 2, 28),
                       datetime(2007, 1, 1): datetime(2007, 2, 28),
                       datetime(2006, 11, 1): datetime(2006, 12, 29)}))

        tests.append((BMonthEnd(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 29),
                       datetime(2008, 6, 30): datetime(2008, 5, 30),
                       datetime(2008, 12, 31): datetime(2008, 11, 28),
                       datetime(2006, 12, 29): datetime(2006, 11, 30),
                       datetime(2006, 12, 30): datetime(2006, 12, 29),
                       datetime(2007, 1, 1): datetime(2006, 12, 29)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_normalize(self):
        dt = datetime(2007, 1, 1, 3)

        result = dt + BMonthEnd(normalize=True)
        expected = dt.replace(hour=0) + BMonthEnd()
        self.assertEqual(result, expected)

    def test_onOffset(self):

        tests = [(BMonthEnd(), datetime(2007, 12, 31), True),
                 (BMonthEnd(), datetime(2008, 1, 1), False)]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_offsets_compare_equal(self):
        # root cause of #456
        offset1 = BMonthEnd()
        offset2 = BMonthEnd()
        self.assertFalse(offset1 != offset2)


class TestMonthBegin(Base):
    _offset = MonthBegin

    def test_offset(self):
        tests = []

        # NOTE: I'm not entirely happy with the logic here for Begin -ss
        # see thread 'offset conventions' on the ML
        tests.append((MonthBegin(),
                      {datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2008, 2, 1): datetime(2008, 3, 1),
                       datetime(2006, 12, 31): datetime(2007, 1, 1),
                       datetime(2006, 12, 1): datetime(2007, 1, 1),
                       datetime(2007, 1, 31): datetime(2007, 2, 1)}))

        tests.append((MonthBegin(0),
                      {datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2006, 12, 3): datetime(2007, 1, 1),
                       datetime(2007, 1, 31): datetime(2007, 2, 1)}))

        tests.append((MonthBegin(2),
                      {datetime(2008, 2, 29): datetime(2008, 4, 1),
                       datetime(2008, 1, 31): datetime(2008, 3, 1),
                       datetime(2006, 12, 31): datetime(2007, 2, 1),
                       datetime(2007, 12, 28): datetime(2008, 2, 1),
                       datetime(2007, 1, 1): datetime(2007, 3, 1),
                       datetime(2006, 11, 1): datetime(2007, 1, 1)}))

        tests.append((MonthBegin(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 1),
                       datetime(2008, 5, 31): datetime(2008, 5, 1),
                       datetime(2008, 12, 31): datetime(2008, 12, 1),
                       datetime(2006, 12, 29): datetime(2006, 12, 1),
                       datetime(2006, 1, 2): datetime(2006, 1, 1)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)


class TestMonthEnd(Base):
    _offset = MonthEnd

    def test_offset(self):
        tests = []

        tests.append((MonthEnd(),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 2, 29),
                       datetime(2006, 12, 29): datetime(2006, 12, 31),
                       datetime(2006, 12, 31): datetime(2007, 1, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 31),
                       datetime(2006, 12, 1): datetime(2006, 12, 31)}))

        tests.append((MonthEnd(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 1, 31),
                       datetime(2006, 12, 29): datetime(2006, 12, 31),
                       datetime(2006, 12, 31): datetime(2006, 12, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 31)}))

        tests.append((MonthEnd(2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 29),
                       datetime(2008, 1, 31): datetime(2008, 3, 31),
                       datetime(2006, 12, 29): datetime(2007, 1, 31),
                       datetime(2006, 12, 31): datetime(2007, 2, 28),
                       datetime(2007, 1, 1): datetime(2007, 2, 28),
                       datetime(2006, 11, 1): datetime(2006, 12, 31)}))

        tests.append((MonthEnd(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 5, 31),
                       datetime(2008, 12, 31): datetime(2008, 11, 30),
                       datetime(2006, 12, 29): datetime(2006, 11, 30),
                       datetime(2006, 12, 30): datetime(2006, 11, 30),
                       datetime(2007, 1, 1): datetime(2006, 12, 31)}))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    # def test_day_of_month(self):
    #     dt = datetime(2007, 1, 1)

    #     offset = MonthEnd(day=20)

    #     result = dt + offset
    #     self.assertEqual(result, datetime(2007, 1, 20))

    #     result = result + offset
    #     self.assertEqual(result, datetime(2007, 2, 20))

    def test_normalize(self):
        dt = datetime(2007, 1, 1, 3)

        result = dt + MonthEnd(normalize=True)
        expected = dt.replace(hour=0) + MonthEnd()
        self.assertEqual(result, expected)

    def test_onOffset(self):

        tests = [(MonthEnd(), datetime(2007, 12, 31), True),
                 (MonthEnd(), datetime(2008, 1, 1), False)]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


class TestSemiMonthEnd(Base):
    _offset = SemiMonthEnd

    def _get_tests(self):
        tests = []

        tests.append((SemiMonthEnd(),
                      {datetime(2008, 1, 1): datetime(2008, 1, 15),
                       datetime(2008, 1, 15): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 2, 15),
                       datetime(2006, 12, 14): datetime(2006, 12, 15),
                       datetime(2006, 12, 29): datetime(2006, 12, 31),
                       datetime(2006, 12, 31): datetime(2007, 1, 15),
                       datetime(2007, 1, 1): datetime(2007, 1, 15),
                       datetime(2006, 12, 1): datetime(2006, 12, 15),
                       datetime(2006, 12, 15): datetime(2006, 12, 31)}))

        tests.append((SemiMonthEnd(day_of_month=20),
                      {datetime(2008, 1, 1): datetime(2008, 1, 20),
                       datetime(2008, 1, 15): datetime(2008, 1, 20),
                       datetime(2008, 1, 21): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 2, 20),
                       datetime(2006, 12, 14): datetime(2006, 12, 20),
                       datetime(2006, 12, 29): datetime(2006, 12, 31),
                       datetime(2006, 12, 31): datetime(2007, 1, 20),
                       datetime(2007, 1, 1): datetime(2007, 1, 20),
                       datetime(2006, 12, 1): datetime(2006, 12, 20),
                       datetime(2006, 12, 15): datetime(2006, 12, 20)}))

        tests.append((SemiMonthEnd(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 15),
                       datetime(2008, 1, 16): datetime(2008, 1, 31),
                       datetime(2008, 1, 15): datetime(2008, 1, 15),
                       datetime(2008, 1, 31): datetime(2008, 1, 31),
                       datetime(2006, 12, 29): datetime(2006, 12, 31),
                       datetime(2006, 12, 31): datetime(2006, 12, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 15)}))

        tests.append((SemiMonthEnd(0, day_of_month=16),
                      {datetime(2008, 1, 1): datetime(2008, 1, 16),
                       datetime(2008, 1, 16): datetime(2008, 1, 16),
                       datetime(2008, 1, 15): datetime(2008, 1, 16),
                       datetime(2008, 1, 31): datetime(2008, 1, 31),
                       datetime(2006, 12, 29): datetime(2006, 12, 31),
                       datetime(2006, 12, 31): datetime(2006, 12, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 16)}))

        tests.append((SemiMonthEnd(2),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 2, 29),
                       datetime(2006, 12, 29): datetime(2007, 1, 15),
                       datetime(2006, 12, 31): datetime(2007, 1, 31),
                       datetime(2007, 1, 1): datetime(2007, 1, 31),
                       datetime(2007, 1, 16): datetime(2007, 2, 15),
                       datetime(2006, 11, 1): datetime(2006, 11, 30)}))

        tests.append((SemiMonthEnd(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 6, 15),
                       datetime(2008, 12, 31): datetime(2008, 12, 15),
                       datetime(2006, 12, 29): datetime(2006, 12, 15),
                       datetime(2006, 12, 30): datetime(2006, 12, 15),
                       datetime(2007, 1, 1): datetime(2006, 12, 31)}))

        tests.append((SemiMonthEnd(-1, day_of_month=4),
                      {datetime(2007, 1, 1): datetime(2006, 12, 31),
                       datetime(2007, 1, 4): datetime(2006, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 6, 4),
                       datetime(2008, 12, 31): datetime(2008, 12, 4),
                       datetime(2006, 12, 5): datetime(2006, 12, 4),
                       datetime(2006, 12, 30): datetime(2006, 12, 4),
                       datetime(2007, 1, 1): datetime(2006, 12, 31)}))

        tests.append((SemiMonthEnd(-2),
                      {datetime(2007, 1, 1): datetime(2006, 12, 15),
                       datetime(2008, 6, 30): datetime(2008, 5, 31),
                       datetime(2008, 3, 15): datetime(2008, 2, 15),
                       datetime(2008, 12, 31): datetime(2008, 11, 30),
                       datetime(2006, 12, 29): datetime(2006, 11, 30),
                       datetime(2006, 12, 14): datetime(2006, 11, 15),
                       datetime(2007, 1, 1): datetime(2006, 12, 15)}))

        return tests

    def test_offset_whole_year(self):
        dates = (datetime(2007, 12, 31),
                 datetime(2008, 1, 15),
                 datetime(2008, 1, 31),
                 datetime(2008, 2, 15),
                 datetime(2008, 2, 29),
                 datetime(2008, 3, 15),
                 datetime(2008, 3, 31),
                 datetime(2008, 4, 15),
                 datetime(2008, 4, 30),
                 datetime(2008, 5, 15),
                 datetime(2008, 5, 31),
                 datetime(2008, 6, 15),
                 datetime(2008, 6, 30),
                 datetime(2008, 7, 15),
                 datetime(2008, 7, 31),
                 datetime(2008, 8, 15),
                 datetime(2008, 8, 31),
                 datetime(2008, 9, 15),
                 datetime(2008, 9, 30),
                 datetime(2008, 10, 15),
                 datetime(2008, 10, 31),
                 datetime(2008, 11, 15),
                 datetime(2008, 11, 30),
                 datetime(2008, 12, 15),
                 datetime(2008, 12, 31))

        for base, exp_date in zip(dates[:-1], dates[1:]):
            assertEq(SemiMonthEnd(), base, exp_date)

        # ensure .apply_index works as expected
        s = DatetimeIndex(dates[:-1])
        result = SemiMonthEnd().apply_index(s)
        exp = DatetimeIndex(dates[1:])
        tm.assert_index_equal(result, exp)

        # ensure generating a range with DatetimeIndex gives same result
        result = DatetimeIndex(start=dates[0], end=dates[-1], freq='SM')
        exp = DatetimeIndex(dates)
        tm.assert_index_equal(result, exp)

    def test_offset(self):
        for offset, cases in self._get_tests():
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_index(self):
        for offset, cases in self._get_tests():
            s = DatetimeIndex(cases.keys())
            result = offset.apply_index(s)
            exp = DatetimeIndex(cases.values())
            tm.assert_index_equal(result, exp)

    def test_onOffset(self):

        tests = [(datetime(2007, 12, 31), True),
                 (datetime(2007, 12, 15), True),
                 (datetime(2007, 12, 14), False),
                 (datetime(2007, 12, 1), False),
                 (datetime(2008, 2, 29), True)]

        for dt, expected in tests:
            assertOnOffset(SemiMonthEnd(), dt, expected)

    def test_vectorized_offset_addition(self):
        for klass, assert_func in zip([Series, DatetimeIndex],
                                      [self.assert_series_equal,
                                       tm.assert_index_equal]):
            s = klass([Timestamp('2000-01-15 00:15:00', tz='US/Central'),
                       Timestamp('2000-02-15', tz='US/Central')], name='a')

            result = s + SemiMonthEnd()
            result2 = SemiMonthEnd() + s
            exp = klass([Timestamp('2000-01-31 00:15:00', tz='US/Central'),
                         Timestamp('2000-02-29', tz='US/Central')], name='a')
            assert_func(result, exp)
            assert_func(result2, exp)

            s = klass([Timestamp('2000-01-01 00:15:00', tz='US/Central'),
                       Timestamp('2000-02-01', tz='US/Central')], name='a')
            result = s + SemiMonthEnd()
            result2 = SemiMonthEnd() + s
            exp = klass([Timestamp('2000-01-15 00:15:00', tz='US/Central'),
                         Timestamp('2000-02-15', tz='US/Central')], name='a')
            assert_func(result, exp)
            assert_func(result2, exp)


class TestSemiMonthBegin(Base):
    _offset = SemiMonthBegin

    def _get_tests(self):
        tests = []

        tests.append((SemiMonthBegin(),
                      {datetime(2008, 1, 1): datetime(2008, 1, 15),
                       datetime(2008, 1, 15): datetime(2008, 2, 1),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2006, 12, 14): datetime(2006, 12, 15),
                       datetime(2006, 12, 29): datetime(2007, 1, 1),
                       datetime(2006, 12, 31): datetime(2007, 1, 1),
                       datetime(2007, 1, 1): datetime(2007, 1, 15),
                       datetime(2006, 12, 1): datetime(2006, 12, 15),
                       datetime(2006, 12, 15): datetime(2007, 1, 1)}))

        tests.append((SemiMonthBegin(day_of_month=20),
                      {datetime(2008, 1, 1): datetime(2008, 1, 20),
                       datetime(2008, 1, 15): datetime(2008, 1, 20),
                       datetime(2008, 1, 21): datetime(2008, 2, 1),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2006, 12, 14): datetime(2006, 12, 20),
                       datetime(2006, 12, 29): datetime(2007, 1, 1),
                       datetime(2006, 12, 31): datetime(2007, 1, 1),
                       datetime(2007, 1, 1): datetime(2007, 1, 20),
                       datetime(2006, 12, 1): datetime(2006, 12, 20),
                       datetime(2006, 12, 15): datetime(2006, 12, 20)}))

        tests.append((SemiMonthBegin(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 1, 16): datetime(2008, 2, 1),
                       datetime(2008, 1, 15): datetime(2008, 1, 15),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2006, 12, 29): datetime(2007, 1, 1),
                       datetime(2006, 12, 2): datetime(2006, 12, 15),
                       datetime(2007, 1, 1): datetime(2007, 1, 1)}))

        tests.append((SemiMonthBegin(0, day_of_month=16),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 1, 16): datetime(2008, 1, 16),
                       datetime(2008, 1, 15): datetime(2008, 1, 16),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2006, 12, 29): datetime(2007, 1, 1),
                       datetime(2006, 12, 31): datetime(2007, 1, 1),
                       datetime(2007, 1, 5): datetime(2007, 1, 16),
                       datetime(2007, 1, 1): datetime(2007, 1, 1)}))

        tests.append((SemiMonthBegin(2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 1),
                       datetime(2008, 1, 31): datetime(2008, 2, 15),
                       datetime(2006, 12, 1): datetime(2007, 1, 1),
                       datetime(2006, 12, 29): datetime(2007, 1, 15),
                       datetime(2006, 12, 15): datetime(2007, 1, 15),
                       datetime(2007, 1, 1): datetime(2007, 2, 1),
                       datetime(2007, 1, 16): datetime(2007, 2, 15),
                       datetime(2006, 11, 1): datetime(2006, 12, 1)}))

        tests.append((SemiMonthBegin(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 15),
                       datetime(2008, 6, 30): datetime(2008, 6, 15),
                       datetime(2008, 6, 14): datetime(2008, 6, 1),
                       datetime(2008, 12, 31): datetime(2008, 12, 15),
                       datetime(2006, 12, 29): datetime(2006, 12, 15),
                       datetime(2006, 12, 15): datetime(2006, 12, 1),
                       datetime(2007, 1, 1): datetime(2006, 12, 15)}))

        tests.append((SemiMonthBegin(-1, day_of_month=4),
                      {datetime(2007, 1, 1): datetime(2006, 12, 4),
                       datetime(2007, 1, 4): datetime(2007, 1, 1),
                       datetime(2008, 6, 30): datetime(2008, 6, 4),
                       datetime(2008, 12, 31): datetime(2008, 12, 4),
                       datetime(2006, 12, 5): datetime(2006, 12, 4),
                       datetime(2006, 12, 30): datetime(2006, 12, 4),
                       datetime(2006, 12, 2): datetime(2006, 12, 1),
                       datetime(2007, 1, 1): datetime(2006, 12, 4)}))

        tests.append((SemiMonthBegin(-2),
                      {datetime(2007, 1, 1): datetime(2006, 12, 1),
                       datetime(2008, 6, 30): datetime(2008, 6, 1),
                       datetime(2008, 6, 14): datetime(2008, 5, 15),
                       datetime(2008, 12, 31): datetime(2008, 12, 1),
                       datetime(2006, 12, 29): datetime(2006, 12, 1),
                       datetime(2006, 12, 15): datetime(2006, 11, 15),
                       datetime(2007, 1, 1): datetime(2006, 12, 1)}))

        return tests

    def test_offset_whole_year(self):
        dates = (datetime(2007, 12, 15),
                 datetime(2008, 1, 1),
                 datetime(2008, 1, 15),
                 datetime(2008, 2, 1),
                 datetime(2008, 2, 15),
                 datetime(2008, 3, 1),
                 datetime(2008, 3, 15),
                 datetime(2008, 4, 1),
                 datetime(2008, 4, 15),
                 datetime(2008, 5, 1),
                 datetime(2008, 5, 15),
                 datetime(2008, 6, 1),
                 datetime(2008, 6, 15),
                 datetime(2008, 7, 1),
                 datetime(2008, 7, 15),
                 datetime(2008, 8, 1),
                 datetime(2008, 8, 15),
                 datetime(2008, 9, 1),
                 datetime(2008, 9, 15),
                 datetime(2008, 10, 1),
                 datetime(2008, 10, 15),
                 datetime(2008, 11, 1),
                 datetime(2008, 11, 15),
                 datetime(2008, 12, 1),
                 datetime(2008, 12, 15))

        for base, exp_date in zip(dates[:-1], dates[1:]):
            assertEq(SemiMonthBegin(), base, exp_date)

        # ensure .apply_index works as expected
        s = DatetimeIndex(dates[:-1])
        result = SemiMonthBegin().apply_index(s)
        exp = DatetimeIndex(dates[1:])
        tm.assert_index_equal(result, exp)

        # ensure generating a range with DatetimeIndex gives same result
        result = DatetimeIndex(start=dates[0], end=dates[-1], freq='SMS')
        exp = DatetimeIndex(dates)
        tm.assert_index_equal(result, exp)

    def test_offset(self):
        for offset, cases in self._get_tests():
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_apply_index(self):
        for offset, cases in self._get_tests():
            s = DatetimeIndex(cases.keys())
            result = offset.apply_index(s)
            exp = DatetimeIndex(cases.values())
            tm.assert_index_equal(result, exp)

    def test_onOffset(self):
        tests = [(datetime(2007, 12, 1), True),
                 (datetime(2007, 12, 15), True),
                 (datetime(2007, 12, 14), False),
                 (datetime(2007, 12, 31), False),
                 (datetime(2008, 2, 15), True)]

        for dt, expected in tests:
            assertOnOffset(SemiMonthBegin(), dt, expected)

    def test_vectorized_offset_addition(self):
        for klass, assert_func in zip([Series, DatetimeIndex],
                                      [self.assert_series_equal,
                                       tm.assert_index_equal]):

            s = klass([Timestamp('2000-01-15 00:15:00', tz='US/Central'),
                       Timestamp('2000-02-15', tz='US/Central')], name='a')
            result = s + SemiMonthBegin()
            result2 = SemiMonthBegin() + s
            exp = klass([Timestamp('2000-02-01 00:15:00', tz='US/Central'),
                         Timestamp('2000-03-01', tz='US/Central')], name='a')
            assert_func(result, exp)
            assert_func(result2, exp)

            s = klass([Timestamp('2000-01-01 00:15:00', tz='US/Central'),
                       Timestamp('2000-02-01', tz='US/Central')], name='a')
            result = s + SemiMonthBegin()
            result2 = SemiMonthBegin() + s
            exp = klass([Timestamp('2000-01-15 00:15:00', tz='US/Central'),
                         Timestamp('2000-02-15', tz='US/Central')], name='a')
            assert_func(result, exp)
            assert_func(result2, exp)


class TestBQuarterBegin(Base):
    _offset = BQuarterBegin

    def test_repr(self):
        self.assertEqual(repr(BQuarterBegin()),
                         "<BusinessQuarterBegin: startingMonth=3>")
        self.assertEqual(repr(BQuarterBegin(startingMonth=3)),
                         "<BusinessQuarterBegin: startingMonth=3>")
        self.assertEqual(repr(BQuarterBegin(startingMonth=1)),
                         "<BusinessQuarterBegin: startingMonth=1>")

    def test_isAnchored(self):
        self.assertTrue(BQuarterBegin(startingMonth=1).isAnchored())
        self.assertTrue(BQuarterBegin().isAnchored())
        self.assertFalse(BQuarterBegin(2, startingMonth=1).isAnchored())

    def test_offset(self):
        tests = []

        tests.append((BQuarterBegin(startingMonth=1),
                      {datetime(2008, 1, 1): datetime(2008, 4, 1),
                       datetime(2008, 1, 31): datetime(2008, 4, 1),
                       datetime(2008, 2, 15): datetime(2008, 4, 1),
                       datetime(2008, 2, 29): datetime(2008, 4, 1),
                       datetime(2008, 3, 15): datetime(2008, 4, 1),
                       datetime(2008, 3, 31): datetime(2008, 4, 1),
                       datetime(2008, 4, 15): datetime(2008, 7, 1),
                       datetime(2007, 3, 15): datetime(2007, 4, 2),
                       datetime(2007, 2, 28): datetime(2007, 4, 2),
                       datetime(2007, 1, 1): datetime(2007, 4, 2),
                       datetime(2007, 4, 15): datetime(2007, 7, 2),
                       datetime(2007, 7, 1): datetime(2007, 7, 2),
                       datetime(2007, 4, 1): datetime(2007, 4, 2),
                       datetime(2007, 4, 2): datetime(2007, 7, 2),
                       datetime(2008, 4, 30): datetime(2008, 7, 1), }))

        tests.append((BQuarterBegin(startingMonth=2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 1),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2008, 1, 15): datetime(2008, 2, 1),
                       datetime(2008, 2, 29): datetime(2008, 5, 1),
                       datetime(2008, 3, 15): datetime(2008, 5, 1),
                       datetime(2008, 3, 31): datetime(2008, 5, 1),
                       datetime(2008, 4, 15): datetime(2008, 5, 1),
                       datetime(2008, 8, 15): datetime(2008, 11, 3),
                       datetime(2008, 9, 15): datetime(2008, 11, 3),
                       datetime(2008, 11, 1): datetime(2008, 11, 3),
                       datetime(2008, 4, 30): datetime(2008, 5, 1), }))

        tests.append((BQuarterBegin(startingMonth=1, n=0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2007, 12, 31): datetime(2008, 1, 1),
                       datetime(2008, 2, 15): datetime(2008, 4, 1),
                       datetime(2008, 2, 29): datetime(2008, 4, 1),
                       datetime(2008, 1, 15): datetime(2008, 4, 1),
                       datetime(2008, 2, 27): datetime(2008, 4, 1),
                       datetime(2008, 3, 15): datetime(2008, 4, 1),
                       datetime(2007, 4, 1): datetime(2007, 4, 2),
                       datetime(2007, 4, 2): datetime(2007, 4, 2),
                       datetime(2007, 7, 1): datetime(2007, 7, 2),
                       datetime(2007, 4, 15): datetime(2007, 7, 2),
                       datetime(2007, 7, 2): datetime(2007, 7, 2), }))

        tests.append((BQuarterBegin(startingMonth=1, n=-1),
                      {datetime(2008, 1, 1): datetime(2007, 10, 1),
                       datetime(2008, 1, 31): datetime(2008, 1, 1),
                       datetime(2008, 2, 15): datetime(2008, 1, 1),
                       datetime(2008, 2, 29): datetime(2008, 1, 1),
                       datetime(2008, 3, 15): datetime(2008, 1, 1),
                       datetime(2008, 3, 31): datetime(2008, 1, 1),
                       datetime(2008, 4, 15): datetime(2008, 4, 1),
                       datetime(2007, 7, 3): datetime(2007, 7, 2),
                       datetime(2007, 4, 3): datetime(2007, 4, 2),
                       datetime(2007, 7, 2): datetime(2007, 4, 2),
                       datetime(2008, 4, 1): datetime(2008, 1, 1), }))

        tests.append((BQuarterBegin(startingMonth=1, n=2),
                      {datetime(2008, 1, 1): datetime(2008, 7, 1),
                       datetime(2008, 1, 15): datetime(2008, 7, 1),
                       datetime(2008, 2, 29): datetime(2008, 7, 1),
                       datetime(2008, 3, 15): datetime(2008, 7, 1),
                       datetime(2007, 3, 31): datetime(2007, 7, 2),
                       datetime(2007, 4, 15): datetime(2007, 10, 1),
                       datetime(2008, 4, 30): datetime(2008, 10, 1), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

        # corner
        offset = BQuarterBegin(n=-1, startingMonth=1)
        self.assertEqual(datetime(2007, 4, 3) + offset, datetime(2007, 4, 2))


class TestBQuarterEnd(Base):
    _offset = BQuarterEnd

    def test_repr(self):
        self.assertEqual(repr(BQuarterEnd()),
                         "<BusinessQuarterEnd: startingMonth=3>")
        self.assertEqual(repr(BQuarterEnd(startingMonth=3)),
                         "<BusinessQuarterEnd: startingMonth=3>")
        self.assertEqual(repr(BQuarterEnd(startingMonth=1)),
                         "<BusinessQuarterEnd: startingMonth=1>")

    def test_isAnchored(self):
        self.assertTrue(BQuarterEnd(startingMonth=1).isAnchored())
        self.assertTrue(BQuarterEnd().isAnchored())
        self.assertFalse(BQuarterEnd(2, startingMonth=1).isAnchored())

    def test_offset(self):
        tests = []

        tests.append((BQuarterEnd(startingMonth=1),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 4, 30),
                       datetime(2008, 2, 15): datetime(2008, 4, 30),
                       datetime(2008, 2, 29): datetime(2008, 4, 30),
                       datetime(2008, 3, 15): datetime(2008, 4, 30),
                       datetime(2008, 3, 31): datetime(2008, 4, 30),
                       datetime(2008, 4, 15): datetime(2008, 4, 30),
                       datetime(2008, 4, 30): datetime(2008, 7, 31), }))

        tests.append((BQuarterEnd(startingMonth=2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 29),
                       datetime(2008, 1, 31): datetime(2008, 2, 29),
                       datetime(2008, 2, 15): datetime(2008, 2, 29),
                       datetime(2008, 2, 29): datetime(2008, 5, 30),
                       datetime(2008, 3, 15): datetime(2008, 5, 30),
                       datetime(2008, 3, 31): datetime(2008, 5, 30),
                       datetime(2008, 4, 15): datetime(2008, 5, 30),
                       datetime(2008, 4, 30): datetime(2008, 5, 30), }))

        tests.append((BQuarterEnd(startingMonth=1, n=0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 1, 31),
                       datetime(2008, 2, 15): datetime(2008, 4, 30),
                       datetime(2008, 2, 29): datetime(2008, 4, 30),
                       datetime(2008, 3, 15): datetime(2008, 4, 30),
                       datetime(2008, 3, 31): datetime(2008, 4, 30),
                       datetime(2008, 4, 15): datetime(2008, 4, 30),
                       datetime(2008, 4, 30): datetime(2008, 4, 30), }))

        tests.append((BQuarterEnd(startingMonth=1, n=-1),
                      {datetime(2008, 1, 1): datetime(2007, 10, 31),
                       datetime(2008, 1, 31): datetime(2007, 10, 31),
                       datetime(2008, 2, 15): datetime(2008, 1, 31),
                       datetime(2008, 2, 29): datetime(2008, 1, 31),
                       datetime(2008, 3, 15): datetime(2008, 1, 31),
                       datetime(2008, 3, 31): datetime(2008, 1, 31),
                       datetime(2008, 4, 15): datetime(2008, 1, 31),
                       datetime(2008, 4, 30): datetime(2008, 1, 31), }))

        tests.append((BQuarterEnd(startingMonth=1, n=2),
                      {datetime(2008, 1, 31): datetime(2008, 7, 31),
                       datetime(2008, 2, 15): datetime(2008, 7, 31),
                       datetime(2008, 2, 29): datetime(2008, 7, 31),
                       datetime(2008, 3, 15): datetime(2008, 7, 31),
                       datetime(2008, 3, 31): datetime(2008, 7, 31),
                       datetime(2008, 4, 15): datetime(2008, 7, 31),
                       datetime(2008, 4, 30): datetime(2008, 10, 31), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

        # corner
        offset = BQuarterEnd(n=-1, startingMonth=1)
        self.assertEqual(datetime(2010, 1, 31) + offset, datetime(2010, 1, 29))

    def test_onOffset(self):

        tests = [
            (BQuarterEnd(1, startingMonth=1), datetime(2008, 1, 31), True),
            (BQuarterEnd(1, startingMonth=1), datetime(2007, 12, 31), False),
            (BQuarterEnd(1, startingMonth=1), datetime(2008, 2, 29), False),
            (BQuarterEnd(1, startingMonth=1), datetime(2007, 3, 30), False),
            (BQuarterEnd(1, startingMonth=1), datetime(2007, 3, 31), False),
            (BQuarterEnd(1, startingMonth=1), datetime(2008, 4, 30), True),
            (BQuarterEnd(1, startingMonth=1), datetime(2008, 5, 30), False),
            (BQuarterEnd(1, startingMonth=1), datetime(2007, 6, 29), False),
            (BQuarterEnd(1, startingMonth=1), datetime(2007, 6, 30), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2008, 1, 31), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2007, 12, 31), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2008, 2, 29), True),
            (BQuarterEnd(1, startingMonth=2), datetime(2007, 3, 30), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2007, 3, 31), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2008, 4, 30), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2008, 5, 30), True),
            (BQuarterEnd(1, startingMonth=2), datetime(2007, 6, 29), False),
            (BQuarterEnd(1, startingMonth=2), datetime(2007, 6, 30), False),
            (BQuarterEnd(1, startingMonth=3), datetime(2008, 1, 31), False),
            (BQuarterEnd(1, startingMonth=3), datetime(2007, 12, 31), True),
            (BQuarterEnd(1, startingMonth=3), datetime(2008, 2, 29), False),
            (BQuarterEnd(1, startingMonth=3), datetime(2007, 3, 30), True),
            (BQuarterEnd(1, startingMonth=3), datetime(2007, 3, 31), False),
            (BQuarterEnd(1, startingMonth=3), datetime(2008, 4, 30), False),
            (BQuarterEnd(1, startingMonth=3), datetime(2008, 5, 30), False),
            (BQuarterEnd(1, startingMonth=3), datetime(2007, 6, 29), True),
            (BQuarterEnd(1, startingMonth=3), datetime(2007, 6, 30), False),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


def makeFY5253LastOfMonthQuarter(*args, **kwds):
    return FY5253Quarter(*args, variation="last", **kwds)


def makeFY5253NearestEndMonthQuarter(*args, **kwds):
    return FY5253Quarter(*args, variation="nearest", **kwds)


def makeFY5253NearestEndMonth(*args, **kwds):
    return FY5253(*args, variation="nearest", **kwds)


def makeFY5253LastOfMonth(*args, **kwds):
    return FY5253(*args, variation="last", **kwds)


class TestFY5253LastOfMonth(Base):
    def test_onOffset(self):

        offset_lom_sat_aug = makeFY5253LastOfMonth(1, startingMonth=8,
                                                   weekday=WeekDay.SAT)
        offset_lom_sat_sep = makeFY5253LastOfMonth(1, startingMonth=9,
                                                   weekday=WeekDay.SAT)

        tests = [
            # From Wikipedia (see:
            # http://en.wikipedia.org/wiki/4%E2%80%934%E2%80%935_calendar#Last_Saturday_of_the_month_at_fiscal_year_end)
            (offset_lom_sat_aug, datetime(2006, 8, 26), True),
            (offset_lom_sat_aug, datetime(2007, 8, 25), True),
            (offset_lom_sat_aug, datetime(2008, 8, 30), True),
            (offset_lom_sat_aug, datetime(2009, 8, 29), True),
            (offset_lom_sat_aug, datetime(2010, 8, 28), True),
            (offset_lom_sat_aug, datetime(2011, 8, 27), True),
            (offset_lom_sat_aug, datetime(2012, 8, 25), True),
            (offset_lom_sat_aug, datetime(2013, 8, 31), True),
            (offset_lom_sat_aug, datetime(2014, 8, 30), True),
            (offset_lom_sat_aug, datetime(2015, 8, 29), True),
            (offset_lom_sat_aug, datetime(2016, 8, 27), True),
            (offset_lom_sat_aug, datetime(2017, 8, 26), True),
            (offset_lom_sat_aug, datetime(2018, 8, 25), True),
            (offset_lom_sat_aug, datetime(2019, 8, 31), True),

            (offset_lom_sat_aug, datetime(2006, 8, 27), False),
            (offset_lom_sat_aug, datetime(2007, 8, 28), False),
            (offset_lom_sat_aug, datetime(2008, 8, 31), False),
            (offset_lom_sat_aug, datetime(2009, 8, 30), False),
            (offset_lom_sat_aug, datetime(2010, 8, 29), False),
            (offset_lom_sat_aug, datetime(2011, 8, 28), False),

            (offset_lom_sat_aug, datetime(2006, 8, 25), False),
            (offset_lom_sat_aug, datetime(2007, 8, 24), False),
            (offset_lom_sat_aug, datetime(2008, 8, 29), False),
            (offset_lom_sat_aug, datetime(2009, 8, 28), False),
            (offset_lom_sat_aug, datetime(2010, 8, 27), False),
            (offset_lom_sat_aug, datetime(2011, 8, 26), False),
            (offset_lom_sat_aug, datetime(2019, 8, 30), False),

            # From GMCR (see for example:
            # http://yahoo.brand.edgar-online.com/Default.aspx?
            # companyid=3184&formtypeID=7)
            (offset_lom_sat_sep, datetime(2010, 9, 25), True),
            (offset_lom_sat_sep, datetime(2011, 9, 24), True),
            (offset_lom_sat_sep, datetime(2012, 9, 29), True),

        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_apply(self):
        offset_lom_aug_sat = makeFY5253LastOfMonth(startingMonth=8,
                                                   weekday=WeekDay.SAT)
        offset_lom_aug_sat_1 = makeFY5253LastOfMonth(n=1, startingMonth=8,
                                                     weekday=WeekDay.SAT)

        date_seq_lom_aug_sat = [datetime(2006, 8, 26), datetime(2007, 8, 25),
                                datetime(2008, 8, 30), datetime(2009, 8, 29),
                                datetime(2010, 8, 28), datetime(2011, 8, 27),
                                datetime(2012, 8, 25), datetime(2013, 8, 31),
                                datetime(2014, 8, 30), datetime(2015, 8, 29),
                                datetime(2016, 8, 27)]

        tests = [
            (offset_lom_aug_sat, date_seq_lom_aug_sat),
            (offset_lom_aug_sat_1, date_seq_lom_aug_sat),
            (offset_lom_aug_sat, [
                datetime(2006, 8, 25)] + date_seq_lom_aug_sat),
            (offset_lom_aug_sat_1, [
                datetime(2006, 8, 27)] + date_seq_lom_aug_sat[1:]),
            (makeFY5253LastOfMonth(n=-1, startingMonth=8,
                                   weekday=WeekDay.SAT),
             list(reversed(date_seq_lom_aug_sat))),
        ]
        for test in tests:
            offset, data = test
            current = data[0]
            for datum in data[1:]:
                current = current + offset
                self.assertEqual(current, datum)


class TestFY5253NearestEndMonth(Base):
    def test_get_target_month_end(self):
        self.assertEqual(makeFY5253NearestEndMonth(startingMonth=8,
                                                   weekday=WeekDay.SAT)
                         .get_target_month_end(
            datetime(2013, 1, 1)), datetime(2013, 8, 31))
        self.assertEqual(makeFY5253NearestEndMonth(startingMonth=12,
                                                   weekday=WeekDay.SAT)
                         .get_target_month_end(datetime(2013, 1, 1)),
                         datetime(2013, 12, 31))
        self.assertEqual(makeFY5253NearestEndMonth(startingMonth=2,
                                                   weekday=WeekDay.SAT)
                         .get_target_month_end(datetime(2013, 1, 1)),
                         datetime(2013, 2, 28))

    def test_get_year_end(self):
        self.assertEqual(makeFY5253NearestEndMonth(startingMonth=8,
                                                   weekday=WeekDay.SAT)
                         .get_year_end(datetime(2013, 1, 1)),
                         datetime(2013, 8, 31))
        self.assertEqual(makeFY5253NearestEndMonth(startingMonth=8,
                                                   weekday=WeekDay.SUN)
                         .get_year_end(datetime(2013, 1, 1)),
                         datetime(2013, 9, 1))
        self.assertEqual(makeFY5253NearestEndMonth(startingMonth=8,
                                                   weekday=WeekDay.FRI)
                         .get_year_end(datetime(2013, 1, 1)),
                         datetime(2013, 8, 30))

        offset_n = FY5253(weekday=WeekDay.TUE, startingMonth=12,
                          variation="nearest")
        self.assertEqual(offset_n.get_year_end(
            datetime(2012, 1, 1)), datetime(2013, 1, 1))
        self.assertEqual(offset_n.get_year_end(
            datetime(2012, 1, 10)), datetime(2013, 1, 1))

        self.assertEqual(offset_n.get_year_end(
            datetime(2013, 1, 1)), datetime(2013, 12, 31))
        self.assertEqual(offset_n.get_year_end(
            datetime(2013, 1, 2)), datetime(2013, 12, 31))
        self.assertEqual(offset_n.get_year_end(
            datetime(2013, 1, 3)), datetime(2013, 12, 31))
        self.assertEqual(offset_n.get_year_end(
            datetime(2013, 1, 10)), datetime(2013, 12, 31))

        JNJ = FY5253(n=1, startingMonth=12, weekday=6, variation="nearest")
        self.assertEqual(JNJ.get_year_end(
            datetime(2006, 1, 1)), datetime(2006, 12, 31))

    def test_onOffset(self):
        offset_lom_aug_sat = makeFY5253NearestEndMonth(1, startingMonth=8,
                                                       weekday=WeekDay.SAT)
        offset_lom_aug_thu = makeFY5253NearestEndMonth(1, startingMonth=8,
                                                       weekday=WeekDay.THU)
        offset_n = FY5253(weekday=WeekDay.TUE, startingMonth=12,
                          variation="nearest")

        tests = [
            #    From Wikipedia (see:
            #    http://en.wikipedia.org/wiki/4%E2%80%934%E2%80%935_calendar
            #    #Saturday_nearest_the_end_of_month)
            #    2006-09-02   2006 September 2
            #    2007-09-01   2007 September 1
            #    2008-08-30   2008 August 30    (leap year)
            #    2009-08-29   2009 August 29
            #    2010-08-28   2010 August 28
            #    2011-09-03   2011 September 3
            #    2012-09-01   2012 September 1  (leap year)
            #    2013-08-31   2013 August 31
            #    2014-08-30   2014 August 30
            #    2015-08-29   2015 August 29
            #    2016-09-03   2016 September 3  (leap year)
            #    2017-09-02   2017 September 2
            #    2018-09-01   2018 September 1
            #    2019-08-31   2019 August 31
            (offset_lom_aug_sat, datetime(2006, 9, 2), True),
            (offset_lom_aug_sat, datetime(2007, 9, 1), True),
            (offset_lom_aug_sat, datetime(2008, 8, 30), True),
            (offset_lom_aug_sat, datetime(2009, 8, 29), True),
            (offset_lom_aug_sat, datetime(2010, 8, 28), True),
            (offset_lom_aug_sat, datetime(2011, 9, 3), True),

            (offset_lom_aug_sat, datetime(2016, 9, 3), True),
            (offset_lom_aug_sat, datetime(2017, 9, 2), True),
            (offset_lom_aug_sat, datetime(2018, 9, 1), True),
            (offset_lom_aug_sat, datetime(2019, 8, 31), True),

            (offset_lom_aug_sat, datetime(2006, 8, 27), False),
            (offset_lom_aug_sat, datetime(2007, 8, 28), False),
            (offset_lom_aug_sat, datetime(2008, 8, 31), False),
            (offset_lom_aug_sat, datetime(2009, 8, 30), False),
            (offset_lom_aug_sat, datetime(2010, 8, 29), False),
            (offset_lom_aug_sat, datetime(2011, 8, 28), False),

            (offset_lom_aug_sat, datetime(2006, 8, 25), False),
            (offset_lom_aug_sat, datetime(2007, 8, 24), False),
            (offset_lom_aug_sat, datetime(2008, 8, 29), False),
            (offset_lom_aug_sat, datetime(2009, 8, 28), False),
            (offset_lom_aug_sat, datetime(2010, 8, 27), False),
            (offset_lom_aug_sat, datetime(2011, 8, 26), False),
            (offset_lom_aug_sat, datetime(2019, 8, 30), False),

            # From Micron, see:
            # http://google.brand.edgar-online.com/?sym=MU&formtypeID=7
            (offset_lom_aug_thu, datetime(2012, 8, 30), True),
            (offset_lom_aug_thu, datetime(2011, 9, 1), True),

            (offset_n, datetime(2012, 12, 31), False),
            (offset_n, datetime(2013, 1, 1), True),
            (offset_n, datetime(2013, 1, 2), False),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_apply(self):
        date_seq_nem_8_sat = [datetime(2006, 9, 2), datetime(2007, 9, 1),
                              datetime(2008, 8, 30), datetime(2009, 8, 29),
                              datetime(2010, 8, 28), datetime(2011, 9, 3)]

        JNJ = [datetime(2005, 1, 2), datetime(2006, 1, 1),
               datetime(2006, 12, 31), datetime(2007, 12, 30),
               datetime(2008, 12, 28), datetime(2010, 1, 3),
               datetime(2011, 1, 2), datetime(2012, 1, 1),
               datetime(2012, 12, 30)]

        DEC_SAT = FY5253(n=-1, startingMonth=12, weekday=5,
                         variation="nearest")

        tests = [
            (makeFY5253NearestEndMonth(startingMonth=8,
                                       weekday=WeekDay.SAT),
             date_seq_nem_8_sat),
            (makeFY5253NearestEndMonth(n=1, startingMonth=8,
                                       weekday=WeekDay.SAT),
             date_seq_nem_8_sat),
            (makeFY5253NearestEndMonth(startingMonth=8, weekday=WeekDay.SAT),
             [datetime(2006, 9, 1)] + date_seq_nem_8_sat),
            (makeFY5253NearestEndMonth(n=1, startingMonth=8,
                                       weekday=WeekDay.SAT),
             [datetime(2006, 9, 3)] + date_seq_nem_8_sat[1:]),
            (makeFY5253NearestEndMonth(n=-1, startingMonth=8,
                                       weekday=WeekDay.SAT),
             list(reversed(date_seq_nem_8_sat))),
            (makeFY5253NearestEndMonth(n=1, startingMonth=12,
                                       weekday=WeekDay.SUN), JNJ),
            (makeFY5253NearestEndMonth(n=-1, startingMonth=12,
                                       weekday=WeekDay.SUN),
             list(reversed(JNJ))),
            (makeFY5253NearestEndMonth(n=1, startingMonth=12,
                                       weekday=WeekDay.SUN),
             [datetime(2005, 1, 2), datetime(2006, 1, 1)]),
            (makeFY5253NearestEndMonth(n=1, startingMonth=12,
                                       weekday=WeekDay.SUN),
             [datetime(2006, 1, 2), datetime(2006, 12, 31)]),
            (DEC_SAT, [datetime(2013, 1, 15), datetime(2012, 12, 29)])
        ]
        for test in tests:
            offset, data = test
            current = data[0]
            for datum in data[1:]:
                current = current + offset
                self.assertEqual(current, datum)


class TestFY5253LastOfMonthQuarter(Base):
    def test_isAnchored(self):
        self.assertTrue(
            makeFY5253LastOfMonthQuarter(startingMonth=1, weekday=WeekDay.SAT,
                                         qtr_with_extra_week=4).isAnchored())
        self.assertTrue(
            makeFY5253LastOfMonthQuarter(weekday=WeekDay.SAT, startingMonth=3,
                                         qtr_with_extra_week=4).isAnchored())
        self.assertFalse(makeFY5253LastOfMonthQuarter(
            2, startingMonth=1, weekday=WeekDay.SAT,
            qtr_with_extra_week=4).isAnchored())

    def test_equality(self):
        self.assertEqual(makeFY5253LastOfMonthQuarter(startingMonth=1,
                                                      weekday=WeekDay.SAT,
                                                      qtr_with_extra_week=4),
                         makeFY5253LastOfMonthQuarter(startingMonth=1,
                                                      weekday=WeekDay.SAT,
                                                      qtr_with_extra_week=4))
        self.assertNotEqual(
            makeFY5253LastOfMonthQuarter(
                startingMonth=1, weekday=WeekDay.SAT,
                qtr_with_extra_week=4),
            makeFY5253LastOfMonthQuarter(
                startingMonth=1, weekday=WeekDay.SUN,
                qtr_with_extra_week=4))
        self.assertNotEqual(
            makeFY5253LastOfMonthQuarter(
                startingMonth=1, weekday=WeekDay.SAT,
                qtr_with_extra_week=4),
            makeFY5253LastOfMonthQuarter(
                startingMonth=2, weekday=WeekDay.SAT,
                qtr_with_extra_week=4))

    def test_offset(self):
        offset = makeFY5253LastOfMonthQuarter(1, startingMonth=9,
                                              weekday=WeekDay.SAT,
                                              qtr_with_extra_week=4)
        offset2 = makeFY5253LastOfMonthQuarter(2, startingMonth=9,
                                               weekday=WeekDay.SAT,
                                               qtr_with_extra_week=4)
        offset4 = makeFY5253LastOfMonthQuarter(4, startingMonth=9,
                                               weekday=WeekDay.SAT,
                                               qtr_with_extra_week=4)

        offset_neg1 = makeFY5253LastOfMonthQuarter(-1, startingMonth=9,
                                                   weekday=WeekDay.SAT,
                                                   qtr_with_extra_week=4)
        offset_neg2 = makeFY5253LastOfMonthQuarter(-2, startingMonth=9,
                                                   weekday=WeekDay.SAT,
                                                   qtr_with_extra_week=4)

        GMCR = [datetime(2010, 3, 27), datetime(2010, 6, 26),
                datetime(2010, 9, 25), datetime(2010, 12, 25),
                datetime(2011, 3, 26), datetime(2011, 6, 25),
                datetime(2011, 9, 24), datetime(2011, 12, 24),
                datetime(2012, 3, 24), datetime(2012, 6, 23),
                datetime(2012, 9, 29), datetime(2012, 12, 29),
                datetime(2013, 3, 30), datetime(2013, 6, 29)]

        assertEq(offset, base=GMCR[0], expected=GMCR[1])
        assertEq(offset, base=GMCR[0] + relativedelta(days=-1),
                 expected=GMCR[0])
        assertEq(offset, base=GMCR[1], expected=GMCR[2])

        assertEq(offset2, base=GMCR[0], expected=GMCR[2])
        assertEq(offset4, base=GMCR[0], expected=GMCR[4])

        assertEq(offset_neg1, base=GMCR[-1], expected=GMCR[-2])
        assertEq(offset_neg1, base=GMCR[-1] + relativedelta(days=+1),
                 expected=GMCR[-1])
        assertEq(offset_neg2, base=GMCR[-1], expected=GMCR[-3])

        date = GMCR[0] + relativedelta(days=-1)
        for expected in GMCR:
            assertEq(offset, date, expected)
            date = date + offset

        date = GMCR[-1] + relativedelta(days=+1)
        for expected in reversed(GMCR):
            assertEq(offset_neg1, date, expected)
            date = date + offset_neg1

    def test_onOffset(self):
        lomq_aug_sat_4 = makeFY5253LastOfMonthQuarter(1, startingMonth=8,
                                                      weekday=WeekDay.SAT,
                                                      qtr_with_extra_week=4)
        lomq_sep_sat_4 = makeFY5253LastOfMonthQuarter(1, startingMonth=9,
                                                      weekday=WeekDay.SAT,
                                                      qtr_with_extra_week=4)

        tests = [
            # From Wikipedia
            (lomq_aug_sat_4, datetime(2006, 8, 26), True),
            (lomq_aug_sat_4, datetime(2007, 8, 25), True),
            (lomq_aug_sat_4, datetime(2008, 8, 30), True),
            (lomq_aug_sat_4, datetime(2009, 8, 29), True),
            (lomq_aug_sat_4, datetime(2010, 8, 28), True),
            (lomq_aug_sat_4, datetime(2011, 8, 27), True),
            (lomq_aug_sat_4, datetime(2019, 8, 31), True),

            (lomq_aug_sat_4, datetime(2006, 8, 27), False),
            (lomq_aug_sat_4, datetime(2007, 8, 28), False),
            (lomq_aug_sat_4, datetime(2008, 8, 31), False),
            (lomq_aug_sat_4, datetime(2009, 8, 30), False),
            (lomq_aug_sat_4, datetime(2010, 8, 29), False),
            (lomq_aug_sat_4, datetime(2011, 8, 28), False),

            (lomq_aug_sat_4, datetime(2006, 8, 25), False),
            (lomq_aug_sat_4, datetime(2007, 8, 24), False),
            (lomq_aug_sat_4, datetime(2008, 8, 29), False),
            (lomq_aug_sat_4, datetime(2009, 8, 28), False),
            (lomq_aug_sat_4, datetime(2010, 8, 27), False),
            (lomq_aug_sat_4, datetime(2011, 8, 26), False),
            (lomq_aug_sat_4, datetime(2019, 8, 30), False),

            # From GMCR
            (lomq_sep_sat_4, datetime(2010, 9, 25), True),
            (lomq_sep_sat_4, datetime(2011, 9, 24), True),
            (lomq_sep_sat_4, datetime(2012, 9, 29), True),

            (lomq_sep_sat_4, datetime(2013, 6, 29), True),
            (lomq_sep_sat_4, datetime(2012, 6, 23), True),
            (lomq_sep_sat_4, datetime(2012, 6, 30), False),

            (lomq_sep_sat_4, datetime(2013, 3, 30), True),
            (lomq_sep_sat_4, datetime(2012, 3, 24), True),

            (lomq_sep_sat_4, datetime(2012, 12, 29), True),
            (lomq_sep_sat_4, datetime(2011, 12, 24), True),

            # INTC (extra week in Q1)
            # See: http://www.intc.com/releasedetail.cfm?ReleaseID=542844
            (makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                          weekday=WeekDay.SAT,
                                          qtr_with_extra_week=1),
             datetime(2011, 4, 2), True),

            # see: http://google.brand.edgar-online.com/?sym=INTC&formtypeID=7
            (makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                          weekday=WeekDay.SAT,
                                          qtr_with_extra_week=1),
             datetime(2012, 12, 29), True),
            (makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                          weekday=WeekDay.SAT,
                                          qtr_with_extra_week=1),
             datetime(2011, 12, 31), True),
            (makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                          weekday=WeekDay.SAT,
                                          qtr_with_extra_week=1),
             datetime(2010, 12, 25), True),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_year_has_extra_week(self):
        # End of long Q1
        self.assertTrue(
            makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                         weekday=WeekDay.SAT,
                                         qtr_with_extra_week=1)
            .year_has_extra_week(datetime(2011, 4, 2)))

        # Start of long Q1
        self.assertTrue(
            makeFY5253LastOfMonthQuarter(
                1, startingMonth=12, weekday=WeekDay.SAT,
                qtr_with_extra_week=1)
            .year_has_extra_week(datetime(2010, 12, 26)))

        # End of year before year with long Q1
        self.assertFalse(
            makeFY5253LastOfMonthQuarter(
                1, startingMonth=12, weekday=WeekDay.SAT,
                qtr_with_extra_week=1)
            .year_has_extra_week(datetime(2010, 12, 25)))

        for year in [x
                     for x in range(1994, 2011 + 1)
                     if x not in [2011, 2005, 2000, 1994]]:
            self.assertFalse(
                makeFY5253LastOfMonthQuarter(
                    1, startingMonth=12, weekday=WeekDay.SAT,
                    qtr_with_extra_week=1)
                .year_has_extra_week(datetime(year, 4, 2)))

        # Other long years
        self.assertTrue(
            makeFY5253LastOfMonthQuarter(
                1, startingMonth=12, weekday=WeekDay.SAT,
                qtr_with_extra_week=1)
            .year_has_extra_week(datetime(2005, 4, 2)))

        self.assertTrue(
            makeFY5253LastOfMonthQuarter(
                1, startingMonth=12, weekday=WeekDay.SAT,
                qtr_with_extra_week=1)
            .year_has_extra_week(datetime(2000, 4, 2)))

        self.assertTrue(
            makeFY5253LastOfMonthQuarter(
                1, startingMonth=12, weekday=WeekDay.SAT,
                qtr_with_extra_week=1)
            .year_has_extra_week(datetime(1994, 4, 2)))

    def test_get_weeks(self):
        sat_dec_1 = makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                                 weekday=WeekDay.SAT,
                                                 qtr_with_extra_week=1)
        sat_dec_4 = makeFY5253LastOfMonthQuarter(1, startingMonth=12,
                                                 weekday=WeekDay.SAT,
                                                 qtr_with_extra_week=4)

        self.assertEqual(sat_dec_1.get_weeks(
            datetime(2011, 4, 2)), [14, 13, 13, 13])
        self.assertEqual(sat_dec_4.get_weeks(
            datetime(2011, 4, 2)), [13, 13, 13, 14])
        self.assertEqual(sat_dec_1.get_weeks(
            datetime(2010, 12, 25)), [13, 13, 13, 13])


class TestFY5253NearestEndMonthQuarter(Base):
    def test_onOffset(self):

        offset_nem_sat_aug_4 = makeFY5253NearestEndMonthQuarter(
            1, startingMonth=8, weekday=WeekDay.SAT,
            qtr_with_extra_week=4)
        offset_nem_thu_aug_4 = makeFY5253NearestEndMonthQuarter(
            1, startingMonth=8, weekday=WeekDay.THU,
            qtr_with_extra_week=4)
        offset_n = FY5253(weekday=WeekDay.TUE, startingMonth=12,
                          variation="nearest", qtr_with_extra_week=4)

        tests = [
            # From Wikipedia
            (offset_nem_sat_aug_4, datetime(2006, 9, 2), True),
            (offset_nem_sat_aug_4, datetime(2007, 9, 1), True),
            (offset_nem_sat_aug_4, datetime(2008, 8, 30), True),
            (offset_nem_sat_aug_4, datetime(2009, 8, 29), True),
            (offset_nem_sat_aug_4, datetime(2010, 8, 28), True),
            (offset_nem_sat_aug_4, datetime(2011, 9, 3), True),

            (offset_nem_sat_aug_4, datetime(2016, 9, 3), True),
            (offset_nem_sat_aug_4, datetime(2017, 9, 2), True),
            (offset_nem_sat_aug_4, datetime(2018, 9, 1), True),
            (offset_nem_sat_aug_4, datetime(2019, 8, 31), True),

            (offset_nem_sat_aug_4, datetime(2006, 8, 27), False),
            (offset_nem_sat_aug_4, datetime(2007, 8, 28), False),
            (offset_nem_sat_aug_4, datetime(2008, 8, 31), False),
            (offset_nem_sat_aug_4, datetime(2009, 8, 30), False),
            (offset_nem_sat_aug_4, datetime(2010, 8, 29), False),
            (offset_nem_sat_aug_4, datetime(2011, 8, 28), False),

            (offset_nem_sat_aug_4, datetime(2006, 8, 25), False),
            (offset_nem_sat_aug_4, datetime(2007, 8, 24), False),
            (offset_nem_sat_aug_4, datetime(2008, 8, 29), False),
            (offset_nem_sat_aug_4, datetime(2009, 8, 28), False),
            (offset_nem_sat_aug_4, datetime(2010, 8, 27), False),
            (offset_nem_sat_aug_4, datetime(2011, 8, 26), False),
            (offset_nem_sat_aug_4, datetime(2019, 8, 30), False),

            # From Micron, see:
            # http://google.brand.edgar-online.com/?sym=MU&formtypeID=7
            (offset_nem_thu_aug_4, datetime(2012, 8, 30), True),
            (offset_nem_thu_aug_4, datetime(2011, 9, 1), True),

            # See: http://google.brand.edgar-online.com/?sym=MU&formtypeID=13
            (offset_nem_thu_aug_4, datetime(2013, 5, 30), True),
            (offset_nem_thu_aug_4, datetime(2013, 2, 28), True),
            (offset_nem_thu_aug_4, datetime(2012, 11, 29), True),
            (offset_nem_thu_aug_4, datetime(2012, 5, 31), True),
            (offset_nem_thu_aug_4, datetime(2007, 3, 1), True),
            (offset_nem_thu_aug_4, datetime(1994, 3, 3), True),

            (offset_n, datetime(2012, 12, 31), False),
            (offset_n, datetime(2013, 1, 1), True),
            (offset_n, datetime(2013, 1, 2), False)
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)

    def test_offset(self):
        offset = makeFY5253NearestEndMonthQuarter(1, startingMonth=8,
                                                  weekday=WeekDay.THU,
                                                  qtr_with_extra_week=4)

        MU = [datetime(2012, 5, 31), datetime(2012, 8, 30), datetime(2012, 11,
                                                                     29),
              datetime(2013, 2, 28), datetime(2013, 5, 30)]

        date = MU[0] + relativedelta(days=-1)
        for expected in MU:
            assertEq(offset, date, expected)
            date = date + offset

        assertEq(offset, datetime(2012, 5, 31), datetime(2012, 8, 30))
        assertEq(offset, datetime(2012, 5, 30), datetime(2012, 5, 31))

        offset2 = FY5253Quarter(weekday=5, startingMonth=12, variation="last",
                                qtr_with_extra_week=4)

        assertEq(offset2, datetime(2013, 1, 15), datetime(2013, 3, 30))


class TestQuarterBegin(Base):
    def test_repr(self):
        self.assertEqual(repr(QuarterBegin()),
                         "<QuarterBegin: startingMonth=3>")
        self.assertEqual(repr(QuarterBegin(startingMonth=3)),
                         "<QuarterBegin: startingMonth=3>")
        self.assertEqual(repr(QuarterBegin(startingMonth=1)),
                         "<QuarterBegin: startingMonth=1>")

    def test_isAnchored(self):
        self.assertTrue(QuarterBegin(startingMonth=1).isAnchored())
        self.assertTrue(QuarterBegin().isAnchored())
        self.assertFalse(QuarterBegin(2, startingMonth=1).isAnchored())

    def test_offset(self):
        tests = []

        tests.append((QuarterBegin(startingMonth=1),
                      {datetime(2007, 12, 1): datetime(2008, 1, 1),
                       datetime(2008, 1, 1): datetime(2008, 4, 1),
                       datetime(2008, 2, 15): datetime(2008, 4, 1),
                       datetime(2008, 2, 29): datetime(2008, 4, 1),
                       datetime(2008, 3, 15): datetime(2008, 4, 1),
                       datetime(2008, 3, 31): datetime(2008, 4, 1),
                       datetime(2008, 4, 15): datetime(2008, 7, 1),
                       datetime(2008, 4, 1): datetime(2008, 7, 1), }))

        tests.append((QuarterBegin(startingMonth=2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 1),
                       datetime(2008, 1, 31): datetime(2008, 2, 1),
                       datetime(2008, 1, 15): datetime(2008, 2, 1),
                       datetime(2008, 2, 29): datetime(2008, 5, 1),
                       datetime(2008, 3, 15): datetime(2008, 5, 1),
                       datetime(2008, 3, 31): datetime(2008, 5, 1),
                       datetime(2008, 4, 15): datetime(2008, 5, 1),
                       datetime(2008, 4, 30): datetime(2008, 5, 1), }))

        tests.append((QuarterBegin(startingMonth=1, n=0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 12, 1): datetime(2009, 1, 1),
                       datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 2, 15): datetime(2008, 4, 1),
                       datetime(2008, 2, 29): datetime(2008, 4, 1),
                       datetime(2008, 3, 15): datetime(2008, 4, 1),
                       datetime(2008, 3, 31): datetime(2008, 4, 1),
                       datetime(2008, 4, 15): datetime(2008, 7, 1),
                       datetime(2008, 4, 30): datetime(2008, 7, 1), }))

        tests.append((QuarterBegin(startingMonth=1, n=-1),
                      {datetime(2008, 1, 1): datetime(2007, 10, 1),
                       datetime(2008, 1, 31): datetime(2008, 1, 1),
                       datetime(2008, 2, 15): datetime(2008, 1, 1),
                       datetime(2008, 2, 29): datetime(2008, 1, 1),
                       datetime(2008, 3, 15): datetime(2008, 1, 1),
                       datetime(2008, 3, 31): datetime(2008, 1, 1),
                       datetime(2008, 4, 15): datetime(2008, 4, 1),
                       datetime(2008, 4, 30): datetime(2008, 4, 1),
                       datetime(2008, 7, 1): datetime(2008, 4, 1)}))

        tests.append((QuarterBegin(startingMonth=1, n=2),
                      {datetime(2008, 1, 1): datetime(2008, 7, 1),
                       datetime(2008, 2, 15): datetime(2008, 7, 1),
                       datetime(2008, 2, 29): datetime(2008, 7, 1),
                       datetime(2008, 3, 15): datetime(2008, 7, 1),
                       datetime(2008, 3, 31): datetime(2008, 7, 1),
                       datetime(2008, 4, 15): datetime(2008, 10, 1),
                       datetime(2008, 4, 1): datetime(2008, 10, 1), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

        # corner
        offset = QuarterBegin(n=-1, startingMonth=1)
        self.assertEqual(datetime(2010, 2, 1) + offset, datetime(2010, 1, 1))


class TestQuarterEnd(Base):
    _offset = QuarterEnd

    def test_repr(self):
        self.assertEqual(repr(QuarterEnd()), "<QuarterEnd: startingMonth=3>")
        self.assertEqual(repr(QuarterEnd(startingMonth=3)),
                         "<QuarterEnd: startingMonth=3>")
        self.assertEqual(repr(QuarterEnd(startingMonth=1)),
                         "<QuarterEnd: startingMonth=1>")

    def test_isAnchored(self):
        self.assertTrue(QuarterEnd(startingMonth=1).isAnchored())
        self.assertTrue(QuarterEnd().isAnchored())
        self.assertFalse(QuarterEnd(2, startingMonth=1).isAnchored())

    def test_offset(self):
        tests = []

        tests.append((QuarterEnd(startingMonth=1),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 4, 30),
                       datetime(2008, 2, 15): datetime(2008, 4, 30),
                       datetime(2008, 2, 29): datetime(2008, 4, 30),
                       datetime(2008, 3, 15): datetime(2008, 4, 30),
                       datetime(2008, 3, 31): datetime(2008, 4, 30),
                       datetime(2008, 4, 15): datetime(2008, 4, 30),
                       datetime(2008, 4, 30): datetime(2008, 7, 31), }))

        tests.append((QuarterEnd(startingMonth=2),
                      {datetime(2008, 1, 1): datetime(2008, 2, 29),
                       datetime(2008, 1, 31): datetime(2008, 2, 29),
                       datetime(2008, 2, 15): datetime(2008, 2, 29),
                       datetime(2008, 2, 29): datetime(2008, 5, 31),
                       datetime(2008, 3, 15): datetime(2008, 5, 31),
                       datetime(2008, 3, 31): datetime(2008, 5, 31),
                       datetime(2008, 4, 15): datetime(2008, 5, 31),
                       datetime(2008, 4, 30): datetime(2008, 5, 31), }))

        tests.append((QuarterEnd(startingMonth=1, n=0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 31),
                       datetime(2008, 1, 31): datetime(2008, 1, 31),
                       datetime(2008, 2, 15): datetime(2008, 4, 30),
                       datetime(2008, 2, 29): datetime(2008, 4, 30),
                       datetime(2008, 3, 15): datetime(2008, 4, 30),
                       datetime(2008, 3, 31): datetime(2008, 4, 30),
                       datetime(2008, 4, 15): datetime(2008, 4, 30),
                       datetime(2008, 4, 30): datetime(2008, 4, 30), }))

        tests.append((QuarterEnd(startingMonth=1, n=-1),
                      {datetime(2008, 1, 1): datetime(2007, 10, 31),
                       datetime(2008, 1, 31): datetime(2007, 10, 31),
                       datetime(2008, 2, 15): datetime(2008, 1, 31),
                       datetime(2008, 2, 29): datetime(2008, 1, 31),
                       datetime(2008, 3, 15): datetime(2008, 1, 31),
                       datetime(2008, 3, 31): datetime(2008, 1, 31),
                       datetime(2008, 4, 15): datetime(2008, 1, 31),
                       datetime(2008, 4, 30): datetime(2008, 1, 31),
                       datetime(2008, 7, 1): datetime(2008, 4, 30)}))

        tests.append((QuarterEnd(startingMonth=1, n=2),
                      {datetime(2008, 1, 31): datetime(2008, 7, 31),
                       datetime(2008, 2, 15): datetime(2008, 7, 31),
                       datetime(2008, 2, 29): datetime(2008, 7, 31),
                       datetime(2008, 3, 15): datetime(2008, 7, 31),
                       datetime(2008, 3, 31): datetime(2008, 7, 31),
                       datetime(2008, 4, 15): datetime(2008, 7, 31),
                       datetime(2008, 4, 30): datetime(2008, 10, 31), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

        # corner
        offset = QuarterEnd(n=-1, startingMonth=1)
        self.assertEqual(datetime(2010, 2, 1) + offset, datetime(2010, 1, 31))

    def test_onOffset(self):

        tests = [(QuarterEnd(1, startingMonth=1), datetime(2008, 1, 31), True),
                 (QuarterEnd(1, startingMonth=1), datetime(2007, 12, 31),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2008, 2, 29),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2007, 3, 30),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2007, 3, 31),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2008, 4, 30), True),
                 (QuarterEnd(1, startingMonth=1), datetime(2008, 5, 30),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2008, 5, 31),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2007, 6, 29),
                  False),
                 (QuarterEnd(1, startingMonth=1), datetime(2007, 6, 30),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2008, 1, 31),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2007, 12, 31),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2008, 2, 29), True),
                 (QuarterEnd(1, startingMonth=2), datetime(2007, 3, 30),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2007, 3, 31),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2008, 4, 30),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2008, 5, 30),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2008, 5, 31), True),
                 (QuarterEnd(1, startingMonth=2), datetime(2007, 6, 29),
                  False),
                 (QuarterEnd(1, startingMonth=2), datetime(2007, 6, 30),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2008, 1, 31),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2007, 12, 31),
                  True),
                 (QuarterEnd(1, startingMonth=3), datetime(2008, 2, 29),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2007, 3, 30),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2007, 3, 31), True),
                 (QuarterEnd(1, startingMonth=3), datetime(2008, 4, 30),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2008, 5, 30),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2008, 5, 31),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2007, 6, 29),
                  False),
                 (QuarterEnd(1, startingMonth=3), datetime(2007, 6, 30),
                  True), ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


class TestBYearBegin(Base):
    _offset = BYearBegin

    def test_misspecified(self):
        self.assertRaises(ValueError, BYearBegin, month=13)
        self.assertRaises(ValueError, BYearEnd, month=13)

    def test_offset(self):
        tests = []

        tests.append((BYearBegin(),
                      {datetime(2008, 1, 1): datetime(2009, 1, 1),
                       datetime(2008, 6, 30): datetime(2009, 1, 1),
                       datetime(2008, 12, 31): datetime(2009, 1, 1),
                       datetime(2011, 1, 1): datetime(2011, 1, 3),
                       datetime(2011, 1, 3): datetime(2012, 1, 2),
                       datetime(2005, 12, 30): datetime(2006, 1, 2),
                       datetime(2005, 12, 31): datetime(2006, 1, 2)}))

        tests.append((BYearBegin(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 6, 30): datetime(2009, 1, 1),
                       datetime(2008, 12, 31): datetime(2009, 1, 1),
                       datetime(2005, 12, 30): datetime(2006, 1, 2),
                       datetime(2005, 12, 31): datetime(2006, 1, 2), }))

        tests.append((BYearBegin(-1),
                      {datetime(2007, 1, 1): datetime(2006, 1, 2),
                       datetime(2009, 1, 4): datetime(2009, 1, 1),
                       datetime(2009, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 6, 30): datetime(2008, 1, 1),
                       datetime(2008, 12, 31): datetime(2008, 1, 1),
                       datetime(2006, 12, 29): datetime(2006, 1, 2),
                       datetime(2006, 12, 30): datetime(2006, 1, 2),
                       datetime(2006, 1, 1): datetime(2005, 1, 3), }))

        tests.append((BYearBegin(-2),
                      {datetime(2007, 1, 1): datetime(2005, 1, 3),
                       datetime(2007, 6, 30): datetime(2006, 1, 2),
                       datetime(2008, 12, 31): datetime(2007, 1, 1), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)


class TestYearBegin(Base):
    _offset = YearBegin

    def test_misspecified(self):
        self.assertRaises(ValueError, YearBegin, month=13)

    def test_offset(self):
        tests = []

        tests.append((YearBegin(),
                      {datetime(2008, 1, 1): datetime(2009, 1, 1),
                       datetime(2008, 6, 30): datetime(2009, 1, 1),
                       datetime(2008, 12, 31): datetime(2009, 1, 1),
                       datetime(2005, 12, 30): datetime(2006, 1, 1),
                       datetime(2005, 12, 31): datetime(2006, 1, 1), }))

        tests.append((YearBegin(0),
                      {datetime(2008, 1, 1): datetime(2008, 1, 1),
                       datetime(2008, 6, 30): datetime(2009, 1, 1),
                       datetime(2008, 12, 31): datetime(2009, 1, 1),
                       datetime(2005, 12, 30): datetime(2006, 1, 1),
                       datetime(2005, 12, 31): datetime(2006, 1, 1), }))

        tests.append((YearBegin(3),
                      {datetime(2008, 1, 1): datetime(2011, 1, 1),
                       datetime(2008, 6, 30): datetime(2011, 1, 1),
                       datetime(2008, 12, 31): datetime(2011, 1, 1),
                       datetime(2005, 12, 30): datetime(2008, 1, 1),
                       datetime(2005, 12, 31): datetime(2008, 1, 1), }))

        tests.append((YearBegin(-1),
                      {datetime(2007, 1, 1): datetime(2006, 1, 1),
                       datetime(2007, 1, 15): datetime(2007, 1, 1),
                       datetime(2008, 6, 30): datetime(2008, 1, 1),
                       datetime(2008, 12, 31): datetime(2008, 1, 1),
                       datetime(2006, 12, 29): datetime(2006, 1, 1),
                       datetime(2006, 12, 30): datetime(2006, 1, 1),
                       datetime(2007, 1, 1): datetime(2006, 1, 1), }))

        tests.append((YearBegin(-2),
                      {datetime(2007, 1, 1): datetime(2005, 1, 1),
                       datetime(2008, 6, 30): datetime(2007, 1, 1),
                       datetime(2008, 12, 31): datetime(2007, 1, 1), }))

        tests.append((YearBegin(month=4),
                      {datetime(2007, 4, 1): datetime(2008, 4, 1),
                       datetime(2007, 4, 15): datetime(2008, 4, 1),
                       datetime(2007, 3, 1): datetime(2007, 4, 1),
                       datetime(2007, 12, 15): datetime(2008, 4, 1),
                       datetime(2012, 1, 31): datetime(2012, 4, 1), }))

        tests.append((YearBegin(0, month=4),
                      {datetime(2007, 4, 1): datetime(2007, 4, 1),
                       datetime(2007, 3, 1): datetime(2007, 4, 1),
                       datetime(2007, 12, 15): datetime(2008, 4, 1),
                       datetime(2012, 1, 31): datetime(2012, 4, 1), }))

        tests.append((YearBegin(4, month=4),
                      {datetime(2007, 4, 1): datetime(2011, 4, 1),
                       datetime(2007, 4, 15): datetime(2011, 4, 1),
                       datetime(2007, 3, 1): datetime(2010, 4, 1),
                       datetime(2007, 12, 15): datetime(2011, 4, 1),
                       datetime(2012, 1, 31): datetime(2015, 4, 1), }))

        tests.append((YearBegin(-1, month=4),
                      {datetime(2007, 4, 1): datetime(2006, 4, 1),
                       datetime(2007, 3, 1): datetime(2006, 4, 1),
                       datetime(2007, 12, 15): datetime(2007, 4, 1),
                       datetime(2012, 1, 31): datetime(2011, 4, 1), }))

        tests.append((YearBegin(-3, month=4),
                      {datetime(2007, 4, 1): datetime(2004, 4, 1),
                       datetime(2007, 3, 1): datetime(2004, 4, 1),
                       datetime(2007, 12, 15): datetime(2005, 4, 1),
                       datetime(2012, 1, 31): datetime(2009, 4, 1), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_onOffset(self):

        tests = [
            (YearBegin(), datetime(2007, 1, 3), False),
            (YearBegin(), datetime(2008, 1, 1), True),
            (YearBegin(), datetime(2006, 12, 31), False),
            (YearBegin(), datetime(2006, 1, 2), False),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


class TestBYearEndLagged(Base):
    def test_bad_month_fail(self):
        self.assertRaises(Exception, BYearEnd, month=13)
        self.assertRaises(Exception, BYearEnd, month=0)

    def test_offset(self):
        tests = []

        tests.append((BYearEnd(month=6),
                      {datetime(2008, 1, 1): datetime(2008, 6, 30),
                       datetime(2007, 6, 30): datetime(2008, 6, 30)}, ))

        tests.append((BYearEnd(n=-1, month=6),
                      {datetime(2008, 1, 1): datetime(2007, 6, 29),
                       datetime(2007, 6, 30): datetime(2007, 6, 29)}, ))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                self.assertEqual(base + offset, expected)

    def test_roll(self):
        offset = BYearEnd(month=6)
        date = datetime(2009, 11, 30)

        self.assertEqual(offset.rollforward(date), datetime(2010, 6, 30))
        self.assertEqual(offset.rollback(date), datetime(2009, 6, 30))

    def test_onOffset(self):

        tests = [
            (BYearEnd(month=2), datetime(2007, 2, 28), True),
            (BYearEnd(month=6), datetime(2007, 6, 30), False),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


class TestBYearEnd(Base):
    _offset = BYearEnd

    def test_offset(self):
        tests = []

        tests.append((BYearEnd(),
                      {datetime(2008, 1, 1): datetime(2008, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 12, 31),
                       datetime(2008, 12, 31): datetime(2009, 12, 31),
                       datetime(2005, 12, 30): datetime(2006, 12, 29),
                       datetime(2005, 12, 31): datetime(2006, 12, 29), }))

        tests.append((BYearEnd(0),
                      {datetime(2008, 1, 1): datetime(2008, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 12, 31),
                       datetime(2008, 12, 31): datetime(2008, 12, 31),
                       datetime(2005, 12, 31): datetime(2006, 12, 29), }))

        tests.append((BYearEnd(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 29),
                       datetime(2008, 6, 30): datetime(2007, 12, 31),
                       datetime(2008, 12, 31): datetime(2007, 12, 31),
                       datetime(2006, 12, 29): datetime(2005, 12, 30),
                       datetime(2006, 12, 30): datetime(2006, 12, 29),
                       datetime(2007, 1, 1): datetime(2006, 12, 29), }))

        tests.append((BYearEnd(-2),
                      {datetime(2007, 1, 1): datetime(2005, 12, 30),
                       datetime(2008, 6, 30): datetime(2006, 12, 29),
                       datetime(2008, 12, 31): datetime(2006, 12, 29), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_onOffset(self):

        tests = [
            (BYearEnd(), datetime(2007, 12, 31), True),
            (BYearEnd(), datetime(2008, 1, 1), False),
            (BYearEnd(), datetime(2006, 12, 31), False),
            (BYearEnd(), datetime(2006, 12, 29), True),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


class TestYearEnd(Base):
    _offset = YearEnd

    def test_misspecified(self):
        self.assertRaises(ValueError, YearEnd, month=13)

    def test_offset(self):
        tests = []

        tests.append((YearEnd(),
                      {datetime(2008, 1, 1): datetime(2008, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 12, 31),
                       datetime(2008, 12, 31): datetime(2009, 12, 31),
                       datetime(2005, 12, 30): datetime(2005, 12, 31),
                       datetime(2005, 12, 31): datetime(2006, 12, 31), }))

        tests.append((YearEnd(0),
                      {datetime(2008, 1, 1): datetime(2008, 12, 31),
                       datetime(2008, 6, 30): datetime(2008, 12, 31),
                       datetime(2008, 12, 31): datetime(2008, 12, 31),
                       datetime(2005, 12, 30): datetime(2005, 12, 31), }))

        tests.append((YearEnd(-1),
                      {datetime(2007, 1, 1): datetime(2006, 12, 31),
                       datetime(2008, 6, 30): datetime(2007, 12, 31),
                       datetime(2008, 12, 31): datetime(2007, 12, 31),
                       datetime(2006, 12, 29): datetime(2005, 12, 31),
                       datetime(2006, 12, 30): datetime(2005, 12, 31),
                       datetime(2007, 1, 1): datetime(2006, 12, 31), }))

        tests.append((YearEnd(-2),
                      {datetime(2007, 1, 1): datetime(2005, 12, 31),
                       datetime(2008, 6, 30): datetime(2006, 12, 31),
                       datetime(2008, 12, 31): datetime(2006, 12, 31), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_onOffset(self):

        tests = [
            (YearEnd(), datetime(2007, 12, 31), True),
            (YearEnd(), datetime(2008, 1, 1), False),
            (YearEnd(), datetime(2006, 12, 31), True),
            (YearEnd(), datetime(2006, 12, 29), False),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


class TestYearEndDiffMonth(Base):
    def test_offset(self):
        tests = []

        tests.append((YearEnd(month=3),
                      {datetime(2008, 1, 1): datetime(2008, 3, 31),
                       datetime(2008, 2, 15): datetime(2008, 3, 31),
                       datetime(2008, 3, 31): datetime(2009, 3, 31),
                       datetime(2008, 3, 30): datetime(2008, 3, 31),
                       datetime(2005, 3, 31): datetime(2006, 3, 31),
                       datetime(2006, 7, 30): datetime(2007, 3, 31)}))

        tests.append((YearEnd(0, month=3),
                      {datetime(2008, 1, 1): datetime(2008, 3, 31),
                       datetime(2008, 2, 28): datetime(2008, 3, 31),
                       datetime(2008, 3, 31): datetime(2008, 3, 31),
                       datetime(2005, 3, 30): datetime(2005, 3, 31), }))

        tests.append((YearEnd(-1, month=3),
                      {datetime(2007, 1, 1): datetime(2006, 3, 31),
                       datetime(2008, 2, 28): datetime(2007, 3, 31),
                       datetime(2008, 3, 31): datetime(2007, 3, 31),
                       datetime(2006, 3, 29): datetime(2005, 3, 31),
                       datetime(2006, 3, 30): datetime(2005, 3, 31),
                       datetime(2007, 3, 1): datetime(2006, 3, 31), }))

        tests.append((YearEnd(-2, month=3),
                      {datetime(2007, 1, 1): datetime(2005, 3, 31),
                       datetime(2008, 6, 30): datetime(2007, 3, 31),
                       datetime(2008, 3, 31): datetime(2006, 3, 31), }))

        for offset, cases in tests:
            for base, expected in compat.iteritems(cases):
                assertEq(offset, base, expected)

    def test_onOffset(self):

        tests = [
            (YearEnd(month=3), datetime(2007, 3, 31), True),
            (YearEnd(month=3), datetime(2008, 1, 1), False),
            (YearEnd(month=3), datetime(2006, 3, 31), True),
            (YearEnd(month=3), datetime(2006, 3, 29), False),
        ]

        for offset, dt, expected in tests:
            assertOnOffset(offset, dt, expected)


def assertEq(offset, base, expected):
    actual = offset + base
    actual_swapped = base + offset
    actual_apply = offset.apply(base)
    try:
        assert actual == expected
        assert actual_swapped == expected
        assert actual_apply == expected
    except AssertionError:
        raise AssertionError("\nExpected: %s\nActual: %s\nFor Offset: %s)"
                             "\nAt Date: %s" %
                             (expected, actual, offset, base))


def test_Easter():
    assertEq(Easter(), datetime(2010, 1, 1), datetime(2010, 4, 4))
    assertEq(Easter(), datetime(2010, 4, 5), datetime(2011, 4, 24))
    assertEq(Easter(2), datetime(2010, 1, 1), datetime(2011, 4, 24))

    assertEq(Easter(), datetime(2010, 4, 4), datetime(2011, 4, 24))
    assertEq(Easter(2), datetime(2010, 4, 4), datetime(2012, 4, 8))

    assertEq(-Easter(), datetime(2011, 1, 1), datetime(2010, 4, 4))
    assertEq(-Easter(), datetime(2010, 4, 5), datetime(2010, 4, 4))
    assertEq(-Easter(2), datetime(2011, 1, 1), datetime(2009, 4, 12))

    assertEq(-Easter(), datetime(2010, 4, 4), datetime(2009, 4, 12))
    assertEq(-Easter(2), datetime(2010, 4, 4), datetime(2008, 3, 23))


class TestTicks(tm.TestCase):

    ticks = [Hour, Minute, Second, Milli, Micro, Nano]

    def test_ticks(self):
        offsets = [(Hour, Timedelta(hours=5)),
                   (Minute, Timedelta(hours=2, minutes=3)),
                   (Second, Timedelta(hours=2, seconds=3)),
                   (Milli, Timedelta(hours=2, milliseconds=3)),
                   (Micro, Timedelta(hours=2, microseconds=3)),
                   (Nano, Timedelta(hours=2, nanoseconds=3))]

        for kls, expected in offsets:
            offset = kls(3)
            result = offset + Timedelta(hours=2)
            self.assertTrue(isinstance(result, Timedelta))
            self.assertEqual(result, expected)

    def test_Hour(self):
        assertEq(Hour(), datetime(2010, 1, 1), datetime(2010, 1, 1, 1))
        assertEq(Hour(-1), datetime(2010, 1, 1, 1), datetime(2010, 1, 1))
        assertEq(2 * Hour(), datetime(2010, 1, 1), datetime(2010, 1, 1, 2))
        assertEq(-1 * Hour(), datetime(2010, 1, 1, 1), datetime(2010, 1, 1))

        self.assertEqual(Hour(3) + Hour(2), Hour(5))
        self.assertEqual(Hour(3) - Hour(2), Hour())

        self.assertNotEqual(Hour(4), Hour(1))

    def test_Minute(self):
        assertEq(Minute(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 1))
        assertEq(Minute(-1), datetime(2010, 1, 1, 0, 1), datetime(2010, 1, 1))
        assertEq(2 * Minute(), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 2))
        assertEq(-1 * Minute(), datetime(2010, 1, 1, 0, 1),
                 datetime(2010, 1, 1))

        self.assertEqual(Minute(3) + Minute(2), Minute(5))
        self.assertEqual(Minute(3) - Minute(2), Minute())
        self.assertNotEqual(Minute(5), Minute())

    def test_Second(self):
        assertEq(Second(), datetime(2010, 1, 1), datetime(2010, 1, 1, 0, 0, 1))
        assertEq(Second(-1), datetime(2010, 1, 1,
                                      0, 0, 1), datetime(2010, 1, 1))
        assertEq(2 * Second(), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 0, 2))
        assertEq(-1 * Second(), datetime(2010, 1, 1, 0, 0, 1),
                 datetime(2010, 1, 1))

        self.assertEqual(Second(3) + Second(2), Second(5))
        self.assertEqual(Second(3) - Second(2), Second())

    def test_Millisecond(self):
        assertEq(Milli(), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 0, 0, 1000))
        assertEq(Milli(-1), datetime(2010, 1, 1, 0,
                                     0, 0, 1000), datetime(2010, 1, 1))
        assertEq(Milli(2), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 0, 0, 2000))
        assertEq(2 * Milli(), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 0, 0, 2000))
        assertEq(-1 * Milli(), datetime(2010, 1, 1, 0, 0, 0, 1000),
                 datetime(2010, 1, 1))

        self.assertEqual(Milli(3) + Milli(2), Milli(5))
        self.assertEqual(Milli(3) - Milli(2), Milli())

    def test_MillisecondTimestampArithmetic(self):
        assertEq(Milli(), Timestamp('2010-01-01'),
                 Timestamp('2010-01-01 00:00:00.001'))
        assertEq(Milli(-1), Timestamp('2010-01-01 00:00:00.001'),
                 Timestamp('2010-01-01'))

    def test_Microsecond(self):
        assertEq(Micro(), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 0, 0, 1))
        assertEq(Micro(-1), datetime(2010, 1, 1,
                                     0, 0, 0, 1), datetime(2010, 1, 1))
        assertEq(2 * Micro(), datetime(2010, 1, 1),
                 datetime(2010, 1, 1, 0, 0, 0, 2))
        assertEq(-1 * Micro(), datetime(2010, 1, 1, 0, 0, 0, 1),
                 datetime(2010, 1, 1))

        self.assertEqual(Micro(3) + Micro(2), Micro(5))
        self.assertEqual(Micro(3) - Micro(2), Micro())

    def test_NanosecondGeneric(self):
        timestamp = Timestamp(datetime(2010, 1, 1))
        self.assertEqual(timestamp.nanosecond, 0)

        result = timestamp + Nano(10)
        self.assertEqual(result.nanosecond, 10)

        reverse_result = Nano(10) + timestamp
        self.assertEqual(reverse_result.nanosecond, 10)

    def test_Nanosecond(self):
        timestamp = Timestamp(datetime(2010, 1, 1))
        assertEq(Nano(), timestamp, timestamp + np.timedelta64(1, 'ns'))
        assertEq(Nano(-1), timestamp + np.timedelta64(1, 'ns'), timestamp)
        assertEq(2 * Nano(), timestamp, timestamp + np.timedelta64(2, 'ns'))
        assertEq(-1 * Nano(), timestamp + np.timedelta64(1, 'ns'), timestamp)

        self.assertEqual(Nano(3) + Nano(2), Nano(5))
        self.assertEqual(Nano(3) - Nano(2), Nano())

        # GH9284
        self.assertEqual(Nano(1) + Nano(10), Nano(11))
        self.assertEqual(Nano(5) + Micro(1), Nano(1005))
        self.assertEqual(Micro(5) + Nano(1), Nano(5001))

    def test_tick_zero(self):
        for t1 in self.ticks:
            for t2 in self.ticks:
                self.assertEqual(t1(0), t2(0))
                self.assertEqual(t1(0) + t2(0), t1(0))

                if t1 is not Nano:
                    self.assertEqual(t1(2) + t2(0), t1(2))
            if t1 is Nano:
                self.assertEqual(t1(2) + Nano(0), t1(2))

    def test_tick_equalities(self):
        for t in self.ticks:
            self.assertEqual(t(3), t(3))
            self.assertEqual(t(), t(1))

            # not equals
            self.assertNotEqual(t(3), t(2))
            self.assertNotEqual(t(3), t(-3))

    def test_tick_operators(self):
        for t in self.ticks:
            self.assertEqual(t(3) + t(2), t(5))
            self.assertEqual(t(3) - t(2), t(1))
            self.assertEqual(t(800) + t(300), t(1100))
            self.assertEqual(t(1000) - t(5), t(995))

    def test_tick_offset(self):
        for t in self.ticks:
            self.assertFalse(t().isAnchored())

    def test_compare_ticks(self):
        for kls in self.ticks:
            three = kls(3)
            four = kls(4)

            for _ in range(10):
                self.assertTrue(three < kls(4))
                self.assertTrue(kls(3) < four)
                self.assertTrue(four > kls(3))
                self.assertTrue(kls(4) > three)
                self.assertTrue(kls(3) == kls(3))
                self.assertTrue(kls(3) != kls(4))


class TestOffsetNames(tm.TestCase):
    def test_get_offset_name(self):
        self.assertEqual(BDay().freqstr, 'B')
        self.assertEqual(BDay(2).freqstr, '2B')
        self.assertEqual(BMonthEnd().freqstr, 'BM')
        self.assertEqual(Week(weekday=0).freqstr, 'W-MON')
        self.assertEqual(Week(weekday=1).freqstr, 'W-TUE')
        self.assertEqual(Week(weekday=2).freqstr, 'W-WED')
        self.assertEqual(Week(weekday=3).freqstr, 'W-THU')
        self.assertEqual(Week(weekday=4).freqstr, 'W-FRI')

        self.assertEqual(LastWeekOfMonth(
            weekday=WeekDay.SUN).freqstr, "LWOM-SUN")
        self.assertEqual(
            makeFY5253LastOfMonthQuarter(weekday=1, startingMonth=3,
                                         qtr_with_extra_week=4).freqstr,
            "REQ-L-MAR-TUE-4")
        self.assertEqual(
            makeFY5253NearestEndMonthQuarter(weekday=1, startingMonth=3,
                                             qtr_with_extra_week=3).freqstr,
            "REQ-N-MAR-TUE-3")


def test_get_offset():
    with tm.assertRaisesRegexp(ValueError, _INVALID_FREQ_ERROR):
        get_offset('gibberish')
    with tm.assertRaisesRegexp(ValueError, _INVALID_FREQ_ERROR):
        get_offset('QS-JAN-B')

    pairs = [
        ('B', BDay()), ('b', BDay()), ('bm', BMonthEnd()),
        ('Bm', BMonthEnd()), ('W-MON', Week(weekday=0)),
        ('W-TUE', Week(weekday=1)), ('W-WED', Week(weekday=2)),
        ('W-THU', Week(weekday=3)), ('W-FRI', Week(weekday=4)),
        ("RE-N-DEC-MON", makeFY5253NearestEndMonth(weekday=0,
                                                   startingMonth=12)),
        ("RE-L-DEC-TUE", makeFY5253LastOfMonth(weekday=1, startingMonth=12)),
        ("REQ-L-MAR-TUE-4", makeFY5253LastOfMonthQuarter(
            weekday=1, startingMonth=3, qtr_with_extra_week=4)),
        ("REQ-L-DEC-MON-3", makeFY5253LastOfMonthQuarter(
            weekday=0, startingMonth=12, qtr_with_extra_week=3)),
        ("REQ-N-DEC-MON-3", makeFY5253NearestEndMonthQuarter(
            weekday=0, startingMonth=12, qtr_with_extra_week=3)),
    ]

    for name, expected in pairs:
        offset = get_offset(name)
        assert offset == expected, ("Expected %r to yield %r (actual: %r)" %
                                    (name, expected, offset))


def test_get_offset_legacy():
    pairs = [('w@Sat', Week(weekday=5))]
    for name, expected in pairs:
        with tm.assertRaisesRegexp(ValueError, _INVALID_FREQ_ERROR):
            get_offset(name)


class TestParseTimeString(tm.TestCase):
    def test_parse_time_string(self):
        (date, parsed, reso) = parse_time_string('4Q1984')
        (date_lower, parsed_lower, reso_lower) = parse_time_string('4q1984')
        self.assertEqual(date, date_lower)
        self.assertEqual(parsed, parsed_lower)
        self.assertEqual(reso, reso_lower)

    def test_parse_time_quarter_w_dash(self):
        # https://github.com/pydata/pandas/issue/9688
        pairs = [('1988-Q2', '1988Q2'), ('2Q-1988', '2Q1988'), ]

        for dashed, normal in pairs:
            (date_dash, parsed_dash, reso_dash) = parse_time_string(dashed)
            (date, parsed, reso) = parse_time_string(normal)

            self.assertEqual(date_dash, date)
            self.assertEqual(parsed_dash, parsed)
            self.assertEqual(reso_dash, reso)

        self.assertRaises(DateParseError, parse_time_string, "-2Q1992")
        self.assertRaises(DateParseError, parse_time_string, "2-Q1992")
        self.assertRaises(DateParseError, parse_time_string, "4-4Q1992")


def test_get_standard_freq():
    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        fstr = get_standard_freq('W')
    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        assert fstr == get_standard_freq('w')
    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        assert fstr == get_standard_freq('1w')
    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        assert fstr == get_standard_freq(('W', 1))

    with tm.assertRaisesRegexp(ValueError, _INVALID_FREQ_ERROR):
        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
            get_standard_freq('WeEk')

    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        fstr = get_standard_freq('5Q')
    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        assert fstr == get_standard_freq('5q')

    with tm.assertRaisesRegexp(ValueError, _INVALID_FREQ_ERROR):
        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
            get_standard_freq('5QuarTer')

    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
        assert fstr == get_standard_freq(('q', 5))


def test_quarterly_dont_normalize():
    date = datetime(2012, 3, 31, 5, 30)

    offsets = (QuarterBegin, QuarterEnd, BQuarterEnd, BQuarterBegin)

    for klass in offsets:
        result = date + klass()
        assert (result.time() == date.time())


class TestOffsetAliases(tm.TestCase):
    def setUp(self):
        _offset_map.clear()

    def test_alias_equality(self):
        for k, v in compat.iteritems(_offset_map):
            if v is None:
                continue
            self.assertEqual(k, v.copy())

    def test_rule_code(self):
        lst = ['M', 'MS', 'BM', 'BMS', 'D', 'B', 'H', 'T', 'S', 'L', 'U']
        for k in lst:
            self.assertEqual(k, get_offset(k).rule_code)
            # should be cached - this is kind of an internals test...
            assert k in _offset_map
            self.assertEqual(k, (get_offset(k) * 3).rule_code)

        suffix_lst = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN']
        base = 'W'
        for v in suffix_lst:
            alias = '-'.join([base, v])
            self.assertEqual(alias, get_offset(alias).rule_code)
            self.assertEqual(alias, (get_offset(alias) * 5).rule_code)

        suffix_lst = ['JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG',
                      'SEP', 'OCT', 'NOV', 'DEC']
        base_lst = ['A', 'AS', 'BA', 'BAS', 'Q', 'QS', 'BQ', 'BQS']
        for base in base_lst:
            for v in suffix_lst:
                alias = '-'.join([base, v])
                self.assertEqual(alias, get_offset(alias).rule_code)
                self.assertEqual(alias, (get_offset(alias) * 5).rule_code)

        lst = ['M', 'D', 'B', 'H', 'T', 'S', 'L', 'U']
        for k in lst:
            code, stride = get_freq_code('3' + k)
            self.assertTrue(isinstance(code, int))
            self.assertEqual(stride, 3)
            self.assertEqual(k, _get_freq_str(code))


def test_apply_ticks():
    result = offsets.Hour(3).apply(offsets.Hour(4))
    exp = offsets.Hour(7)
    assert (result == exp)


def test_delta_to_tick():
    delta = timedelta(3)

    tick = offsets._delta_to_tick(delta)
    assert (tick == offsets.Day(3))


def test_dateoffset_misc():
    oset = offsets.DateOffset(months=2, days=4)
    # it works
    oset.freqstr

    assert (not offsets.DateOffset(months=2) == 2)


def test_freq_offsets():
    off = BDay(1, offset=timedelta(0, 1800))
    assert (off.freqstr == 'B+30Min')

    off = BDay(1, offset=timedelta(0, -1800))
    assert (off.freqstr == 'B-30Min')


def get_all_subclasses(cls):
    ret = set()
    this_subclasses = cls.__subclasses__()
    ret = ret | set(this_subclasses)
    for this_subclass in this_subclasses:
        ret | get_all_subclasses(this_subclass)
    return ret


class TestCaching(tm.TestCase):

    # as of GH 6479 (in 0.14.0), offset caching is turned off
    # as of v0.12.0 only BusinessMonth/Quarter were actually caching

    def setUp(self):
        _daterange_cache.clear()
        _offset_map.clear()

    def run_X_index_creation(self, cls):
        inst1 = cls()
        if not inst1.isAnchored():
            self.assertFalse(inst1._should_cache(), cls)
            return

        self.assertTrue(inst1._should_cache(), cls)

        DatetimeIndex(start=datetime(2013, 1, 31), end=datetime(2013, 3, 31),
                      freq=inst1, normalize=True)
        self.assertTrue(cls() in _daterange_cache, cls)

    def test_should_cache_month_end(self):
        self.assertFalse(MonthEnd()._should_cache())

    def test_should_cache_bmonth_end(self):
        self.assertFalse(BusinessMonthEnd()._should_cache())

    def test_should_cache_week_month(self):
        self.assertFalse(WeekOfMonth(weekday=1, week=2)._should_cache())

    def test_all_cacheableoffsets(self):
        for subclass in get_all_subclasses(CacheableOffset):
            if subclass.__name__[0] == "_" \
                    or subclass in TestCaching.no_simple_ctr:
                continue
            self.run_X_index_creation(subclass)

    def test_month_end_index_creation(self):
        DatetimeIndex(start=datetime(2013, 1, 31), end=datetime(2013, 3, 31),
                      freq=MonthEnd(), normalize=True)
        self.assertFalse(MonthEnd() in _daterange_cache)

    def test_bmonth_end_index_creation(self):
        DatetimeIndex(start=datetime(2013, 1, 31), end=datetime(2013, 3, 29),
                      freq=BusinessMonthEnd(), normalize=True)
        self.assertFalse(BusinessMonthEnd() in _daterange_cache)

    def test_week_of_month_index_creation(self):
        inst1 = WeekOfMonth(weekday=1, week=2)
        DatetimeIndex(start=datetime(2013, 1, 31), end=datetime(2013, 3, 29),
                      freq=inst1, normalize=True)
        inst2 = WeekOfMonth(weekday=1, week=2)
        self.assertFalse(inst2 in _daterange_cache)


class TestReprNames(tm.TestCase):
    def test_str_for_named_is_name(self):
        # look at all the amazing combinations!
        month_prefixes = ['A', 'AS', 'BA', 'BAS', 'Q', 'BQ', 'BQS', 'QS']
        names = [prefix + '-' + month
                 for prefix in month_prefixes
                 for month in ['JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL',
                               'AUG', 'SEP', 'OCT', 'NOV', 'DEC']]
        days = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN']
        names += ['W-' + day for day in days]
        names += ['WOM-' + week + day
                  for week in ('1', '2', '3', '4') for day in days]
        _offset_map.clear()
        for name in names:
            offset = get_offset(name)
            self.assertEqual(offset.freqstr, name)


def get_utc_offset_hours(ts):
    # take a Timestamp and compute total hours of utc offset
    o = ts.utcoffset()
    return (o.days * 24 * 3600 + o.seconds) / 3600.0


class TestDST(tm.TestCase):
    """
    test DateOffset additions over Daylight Savings Time
    """
    # one microsecond before the DST transition
    ts_pre_fallback = "2013-11-03 01:59:59.999999"
    ts_pre_springfwd = "2013-03-10 01:59:59.999999"

    # test both basic names and dateutil timezones
    timezone_utc_offsets = {
        'US/Eastern': dict(utc_offset_daylight=-4,
                           utc_offset_standard=-5, ),
        'dateutil/US/Pacific': dict(utc_offset_daylight=-7,
                                    utc_offset_standard=-8, )
    }
    valid_date_offsets_singular = [
        'weekday', 'day', 'hour', 'minute', 'second', 'microsecond'
    ]
    valid_date_offsets_plural = [
        'weeks', 'days',
        'hours', 'minutes', 'seconds',
        'milliseconds', 'microseconds'
    ]

    def _test_all_offsets(self, n, **kwds):
        valid_offsets = self.valid_date_offsets_plural if n > 1 \
            else self.valid_date_offsets_singular

        for name in valid_offsets:
            self._test_offset(offset_name=name, offset_n=n, **kwds)

    def _test_offset(self, offset_name, offset_n, tstart, expected_utc_offset):
        offset = DateOffset(**{offset_name: offset_n})
        t = tstart + offset
        if expected_utc_offset is not None:
            self.assertTrue(get_utc_offset_hours(t) == expected_utc_offset)

        if offset_name == 'weeks':
            # dates should match
            self.assertTrue(t.date() == timedelta(days=7 * offset.kwds[
                'weeks']) + tstart.date())
            # expect the same day of week, hour of day, minute, second, ...
            self.assertTrue(t.dayofweek == tstart.dayofweek and t.hour ==
                            tstart.hour and t.minute == tstart.minute and
                            t.second == tstart.second)
        elif offset_name == 'days':
            # dates should match
            self.assertTrue(timedelta(offset.kwds['days']) + tstart.date() ==
                            t.date())
            # expect the same hour of day, minute, second, ...
            self.assertTrue(t.hour == tstart.hour and
                            t.minute == tstart.minute and
                            t.second == tstart.second)
        elif offset_name in self.valid_date_offsets_singular:
            # expect the signular offset value to match between tstart and t
            datepart_offset = getattr(t, offset_name
                                      if offset_name != 'weekday' else
                                      'dayofweek')
            self.assertTrue(datepart_offset == offset.kwds[offset_name])
        else:
            # the offset should be the same as if it was done in UTC
            self.assertTrue(t == (tstart.tz_convert('UTC') + offset
                                  ).tz_convert('US/Pacific'))

    def _make_timestamp(self, string, hrs_offset, tz):
        if hrs_offset >= 0:
            offset_string = '{hrs:02d}00'.format(hrs=hrs_offset)
        else:
            offset_string = '-{hrs:02d}00'.format(hrs=-1 * hrs_offset)
        return Timestamp(string + offset_string).tz_convert(tz)

    def test_fallback_plural(self):
        """test moving from daylight savings to standard time"""
        for tz, utc_offsets in self.timezone_utc_offsets.items():
            hrs_pre = utc_offsets['utc_offset_daylight']
            hrs_post = utc_offsets['utc_offset_standard']
            self._test_all_offsets(
                n=3, tstart=self._make_timestamp(self.ts_pre_fallback,
                                                 hrs_pre, tz),
                expected_utc_offset=hrs_post)

    def test_springforward_plural(self):
        """test moving from standard to daylight savings"""
        for tz, utc_offsets in self.timezone_utc_offsets.items():
            hrs_pre = utc_offsets['utc_offset_standard']
            hrs_post = utc_offsets['utc_offset_daylight']
            self._test_all_offsets(
                n=3, tstart=self._make_timestamp(self.ts_pre_springfwd,
                                                 hrs_pre, tz),
                expected_utc_offset=hrs_post)

    def test_fallback_singular(self):
        # in the case of signular offsets, we dont neccesarily know which utc
        # offset the new Timestamp will wind up in (the tz for 1 month may be
        # different from 1 second) so we don't specify an expected_utc_offset
        for tz, utc_offsets in self.timezone_utc_offsets.items():
            hrs_pre = utc_offsets['utc_offset_standard']
            self._test_all_offsets(n=1, tstart=self._make_timestamp(
                self.ts_pre_fallback, hrs_pre, tz), expected_utc_offset=None)

    def test_springforward_singular(self):
        for tz, utc_offsets in self.timezone_utc_offsets.items():
            hrs_pre = utc_offsets['utc_offset_standard']
            self._test_all_offsets(n=1, tstart=self._make_timestamp(
                self.ts_pre_springfwd, hrs_pre, tz), expected_utc_offset=None)

    def test_all_offset_classes(self):
        tests = {MonthBegin: ['11/2/2012', '12/1/2012'],
                 MonthEnd: ['11/2/2012', '11/30/2012'],
                 BMonthBegin: ['11/2/2012', '12/3/2012'],
                 BMonthEnd: ['11/2/2012', '11/30/2012'],
                 CBMonthBegin: ['11/2/2012', '12/3/2012'],
                 CBMonthEnd: ['11/2/2012', '11/30/2012'],
                 SemiMonthBegin: ['11/2/2012', '11/15/2012'],
                 SemiMonthEnd: ['11/2/2012', '11/15/2012'],
                 Week: ['11/2/2012', '11/9/2012'],
                 YearBegin: ['11/2/2012', '1/1/2013'],
                 YearEnd: ['11/2/2012', '12/31/2012'],
                 BYearBegin: ['11/2/2012', '1/1/2013'],
                 BYearEnd: ['11/2/2012', '12/31/2012'],
                 QuarterBegin: ['11/2/2012', '12/1/2012'],
                 QuarterEnd: ['11/2/2012', '12/31/2012'],
                 BQuarterBegin: ['11/2/2012', '12/3/2012'],
                 BQuarterEnd: ['11/2/2012', '12/31/2012'],
                 Day: ['11/4/2012', '11/4/2012 23:00']}

        for offset, test_values in iteritems(tests):
            first = Timestamp(test_values[0], tz='US/Eastern') + offset()
            second = Timestamp(test_values[1], tz='US/Eastern')
            self.assertEqual(first, second, msg=str(offset))


if __name__ == '__main__':
    nose.runmodule(argv=[__file__, '-vvs', '-x', '--pdb', '--pdb-failure'],
                   exit=False)