/Lib/test/test_getargs2.py
http://unladen-swallow.googlecode.com/ · Python · 312 lines · 220 code · 48 blank · 44 comment · 13 complexity · d09f4ba3dba7d58a9543d87d003d1270 MD5 · raw file
- import unittest
- from test import test_support
- from _testcapi import getargs_keywords
- import warnings
- warnings.filterwarnings("ignore",
- category=DeprecationWarning,
- message=".*integer argument expected, got float",
- module=__name__)
- warnings.filterwarnings("ignore",
- category=DeprecationWarning,
- message=".*integer argument expected, got float",
- module="unittest")
- """
- > How about the following counterproposal. This also changes some of
- > the other format codes to be a little more regular.
- >
- > Code C type Range check
- >
- > b unsigned char 0..UCHAR_MAX
- > h signed short SHRT_MIN..SHRT_MAX
- > B unsigned char none **
- > H unsigned short none **
- > k * unsigned long none
- > I * unsigned int 0..UINT_MAX
- > i int INT_MIN..INT_MAX
- > l long LONG_MIN..LONG_MAX
- > K * unsigned long long none
- > L long long LLONG_MIN..LLONG_MAX
- > Notes:
- >
- > * New format codes.
- >
- > ** Changed from previous "range-and-a-half" to "none"; the
- > range-and-a-half checking wasn't particularly useful.
- Plus a C API or two, e.g. PyInt_AsLongMask() ->
- unsigned long and PyInt_AsLongLongMask() -> unsigned
- long long (if that exists).
- """
- LARGE = 0x7FFFFFFF
- VERY_LARGE = 0xFF0000121212121212121242L
- from _testcapi import UCHAR_MAX, USHRT_MAX, UINT_MAX, ULONG_MAX, INT_MAX, \
- INT_MIN, LONG_MIN, LONG_MAX, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX
- # fake, they are not defined in Python's header files
- LLONG_MAX = 2**63-1
- LLONG_MIN = -2**63
- ULLONG_MAX = 2**64-1
- class Long:
- def __int__(self):
- return 99L
- class Int:
- def __int__(self):
- return 99
- class Unsigned_TestCase(unittest.TestCase):
- def test_b(self):
- from _testcapi import getargs_b
- # b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX)
- self.failUnlessEqual(3, getargs_b(3.14))
- self.failUnlessEqual(99, getargs_b(Long()))
- self.failUnlessEqual(99, getargs_b(Int()))
- self.assertRaises(OverflowError, getargs_b, -1)
- self.failUnlessEqual(0, getargs_b(0))
- self.failUnlessEqual(UCHAR_MAX, getargs_b(UCHAR_MAX))
- self.assertRaises(OverflowError, getargs_b, UCHAR_MAX + 1)
- self.failUnlessEqual(42, getargs_b(42))
- self.failUnlessEqual(42, getargs_b(42L))
- self.assertRaises(OverflowError, getargs_b, VERY_LARGE)
- def test_B(self):
- from _testcapi import getargs_B
- # B returns 'unsigned char', no range checking
- self.failUnlessEqual(3, getargs_B(3.14))
- self.failUnlessEqual(99, getargs_B(Long()))
- self.failUnlessEqual(99, getargs_B(Int()))
- self.failUnlessEqual(UCHAR_MAX, getargs_B(-1))
- self.failUnlessEqual(UCHAR_MAX, getargs_B(-1L))
- self.failUnlessEqual(0, getargs_B(0))
- self.failUnlessEqual(UCHAR_MAX, getargs_B(UCHAR_MAX))
- self.failUnlessEqual(0, getargs_B(UCHAR_MAX+1))
- self.failUnlessEqual(42, getargs_B(42))
- self.failUnlessEqual(42, getargs_B(42L))
- self.failUnlessEqual(UCHAR_MAX & VERY_LARGE, getargs_B(VERY_LARGE))
- def test_H(self):
- from _testcapi import getargs_H
- # H returns 'unsigned short', no range checking
- self.failUnlessEqual(3, getargs_H(3.14))
- self.failUnlessEqual(99, getargs_H(Long()))
- self.failUnlessEqual(99, getargs_H(Int()))
- self.failUnlessEqual(USHRT_MAX, getargs_H(-1))
- self.failUnlessEqual(0, getargs_H(0))
- self.failUnlessEqual(USHRT_MAX, getargs_H(USHRT_MAX))
- self.failUnlessEqual(0, getargs_H(USHRT_MAX+1))
- self.failUnlessEqual(42, getargs_H(42))
- self.failUnlessEqual(42, getargs_H(42L))
- self.failUnlessEqual(VERY_LARGE & USHRT_MAX, getargs_H(VERY_LARGE))
- def test_I(self):
- from _testcapi import getargs_I
- # I returns 'unsigned int', no range checking
- self.failUnlessEqual(3, getargs_I(3.14))
- self.failUnlessEqual(99, getargs_I(Long()))
- self.failUnlessEqual(99, getargs_I(Int()))
- self.failUnlessEqual(UINT_MAX, getargs_I(-1))
- self.failUnlessEqual(0, getargs_I(0))
- self.failUnlessEqual(UINT_MAX, getargs_I(UINT_MAX))
- self.failUnlessEqual(0, getargs_I(UINT_MAX+1))
- self.failUnlessEqual(42, getargs_I(42))
- self.failUnlessEqual(42, getargs_I(42L))
- self.failUnlessEqual(VERY_LARGE & UINT_MAX, getargs_I(VERY_LARGE))
- def test_k(self):
- from _testcapi import getargs_k
- # k returns 'unsigned long', no range checking
- # it does not accept float, or instances with __int__
- self.assertRaises(TypeError, getargs_k, 3.14)
- self.assertRaises(TypeError, getargs_k, Long())
- self.assertRaises(TypeError, getargs_k, Int())
- self.failUnlessEqual(ULONG_MAX, getargs_k(-1))
- self.failUnlessEqual(0, getargs_k(0))
- self.failUnlessEqual(ULONG_MAX, getargs_k(ULONG_MAX))
- self.failUnlessEqual(0, getargs_k(ULONG_MAX+1))
- self.failUnlessEqual(42, getargs_k(42))
- self.failUnlessEqual(42, getargs_k(42L))
- self.failUnlessEqual(VERY_LARGE & ULONG_MAX, getargs_k(VERY_LARGE))
- class Signed_TestCase(unittest.TestCase):
- def test_i(self):
- from _testcapi import getargs_i
- # i returns 'int', and does range checking (INT_MIN ... INT_MAX)
- self.failUnlessEqual(3, getargs_i(3.14))
- self.failUnlessEqual(99, getargs_i(Long()))
- self.failUnlessEqual(99, getargs_i(Int()))
- self.assertRaises(OverflowError, getargs_i, INT_MIN-1)
- self.failUnlessEqual(INT_MIN, getargs_i(INT_MIN))
- self.failUnlessEqual(INT_MAX, getargs_i(INT_MAX))
- self.assertRaises(OverflowError, getargs_i, INT_MAX+1)
- self.failUnlessEqual(42, getargs_i(42))
- self.failUnlessEqual(42, getargs_i(42L))
- self.assertRaises(OverflowError, getargs_i, VERY_LARGE)
- def test_l(self):
- from _testcapi import getargs_l
- # l returns 'long', and does range checking (LONG_MIN ... LONG_MAX)
- self.failUnlessEqual(3, getargs_l(3.14))
- self.failUnlessEqual(99, getargs_l(Long()))
- self.failUnlessEqual(99, getargs_l(Int()))
- self.assertRaises(OverflowError, getargs_l, LONG_MIN-1)
- self.failUnlessEqual(LONG_MIN, getargs_l(LONG_MIN))
- self.failUnlessEqual(LONG_MAX, getargs_l(LONG_MAX))
- self.assertRaises(OverflowError, getargs_l, LONG_MAX+1)
- self.failUnlessEqual(42, getargs_l(42))
- self.failUnlessEqual(42, getargs_l(42L))
- self.assertRaises(OverflowError, getargs_l, VERY_LARGE)
- def test_n(self):
- from _testcapi import getargs_n
- # n returns 'Py_ssize_t', and does range checking
- # (PY_SSIZE_T_MIN ... PY_SSIZE_T_MAX)
- self.failUnlessEqual(3, getargs_n(3.14))
- self.failUnlessEqual(99, getargs_n(Long()))
- self.failUnlessEqual(99, getargs_n(Int()))
- self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MIN-1)
- self.failUnlessEqual(PY_SSIZE_T_MIN, getargs_n(PY_SSIZE_T_MIN))
- self.failUnlessEqual(PY_SSIZE_T_MAX, getargs_n(PY_SSIZE_T_MAX))
- self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MAX+1)
- self.failUnlessEqual(42, getargs_n(42))
- self.failUnlessEqual(42, getargs_n(42L))
- self.assertRaises(OverflowError, getargs_n, VERY_LARGE)
- class LongLong_TestCase(unittest.TestCase):
- def test_L(self):
- from _testcapi import getargs_L
- # L returns 'long long', and does range checking (LLONG_MIN ... LLONG_MAX)
- self.failUnlessRaises(TypeError, getargs_L, "Hello")
- self.failUnlessEqual(3, getargs_L(3.14))
- self.failUnlessEqual(99, getargs_L(Long()))
- self.failUnlessEqual(99, getargs_L(Int()))
- self.assertRaises(OverflowError, getargs_L, LLONG_MIN-1)
- self.failUnlessEqual(LLONG_MIN, getargs_L(LLONG_MIN))
- self.failUnlessEqual(LLONG_MAX, getargs_L(LLONG_MAX))
- self.assertRaises(OverflowError, getargs_L, LLONG_MAX+1)
- self.failUnlessEqual(42, getargs_L(42))
- self.failUnlessEqual(42, getargs_L(42L))
- self.assertRaises(OverflowError, getargs_L, VERY_LARGE)
- def test_K(self):
- from _testcapi import getargs_K
- # K return 'unsigned long long', no range checking
- self.assertRaises(TypeError, getargs_K, 3.14)
- self.assertRaises(TypeError, getargs_K, Long())
- self.assertRaises(TypeError, getargs_K, Int())
- self.failUnlessEqual(ULLONG_MAX, getargs_K(ULLONG_MAX))
- self.failUnlessEqual(0, getargs_K(0))
- self.failUnlessEqual(0, getargs_K(ULLONG_MAX+1))
- self.failUnlessEqual(42, getargs_K(42))
- self.failUnlessEqual(42, getargs_K(42L))
- self.failUnlessEqual(VERY_LARGE & ULLONG_MAX, getargs_K(VERY_LARGE))
- class Tuple_TestCase(unittest.TestCase):
- def test_tuple(self):
- from _testcapi import getargs_tuple
- ret = getargs_tuple(1, (2, 3))
- self.assertEquals(ret, (1,2,3))
- # make sure invalid tuple arguments are handled correctly
- class seq:
- def __len__(self):
- return 2
- def __getitem__(self, n):
- raise ValueError
- self.assertRaises(TypeError, getargs_tuple, 1, seq())
- class Keywords_TestCase(unittest.TestCase):
- def test_positional_args(self):
- # using all positional args
- self.assertEquals(
- getargs_keywords((1,2), 3, (4,(5,6)), (7,8,9), 10),
- (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
- )
- def test_mixed_args(self):
- # positional and keyword args
- self.assertEquals(
- getargs_keywords((1,2), 3, (4,(5,6)), arg4=(7,8,9), arg5=10),
- (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
- )
- def test_keyword_args(self):
- # all keywords
- self.assertEquals(
- getargs_keywords(arg1=(1,2), arg2=3, arg3=(4,(5,6)), arg4=(7,8,9), arg5=10),
- (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
- )
- def test_optional_args(self):
- # missing optional keyword args, skipping tuples
- self.assertEquals(
- getargs_keywords(arg1=(1,2), arg2=3, arg5=10),
- (1, 2, 3, -1, -1, -1, -1, -1, -1, 10)
- )
- def test_required_args(self):
- # required arg missing
- try:
- getargs_keywords(arg1=(1,2))
- except TypeError, err:
- self.assertEquals(str(err), "Required argument 'arg2' (pos 2) not found")
- else:
- self.fail('TypeError should have been raised')
- def test_too_many_args(self):
- try:
- getargs_keywords((1,2),3,(4,(5,6)),(7,8,9),10,111)
- except TypeError, err:
- self.assertEquals(str(err), "function takes at most 5 arguments (6 given)")
- else:
- self.fail('TypeError should have been raised')
- def test_invalid_keyword(self):
- # extraneous keyword arg
- try:
- getargs_keywords((1,2),3,arg5=10,arg666=666)
- except TypeError, err:
- self.assertEquals(str(err), "'arg666' is an invalid keyword argument for this function")
- else:
- self.fail('TypeError should have been raised')
- def test_main():
- tests = [Signed_TestCase, Unsigned_TestCase, Tuple_TestCase, Keywords_TestCase]
- try:
- from _testcapi import getargs_L, getargs_K
- except ImportError:
- pass # PY_LONG_LONG not available
- else:
- tests.append(LongLong_TestCase)
- test_support.run_unittest(*tests)
- if __name__ == "__main__":
- test_main()