/Lib/test/test__locale.py

  1from test.test_support import verbose, TestSkipped, run_unittest
  2from _locale import (setlocale, LC_NUMERIC, RADIXCHAR, THOUSEP, nl_langinfo,
  3                    localeconv, Error)
  4import unittest
  5from platform import uname
  6
  7if uname()[0] == "Darwin":
  8    maj, min, mic = [int(part) for part in uname()[2].split(".")]
  9    if (maj, min, mic) < (8, 0, 0):
 10        raise TestSkipped("locale support broken for OS X < 10.4")
 11
 12candidate_locales = ['es_UY', 'fr_FR', 'fi_FI', 'es_CO', 'pt_PT', 'it_IT',
 13    'et_EE', 'es_PY', 'no_NO', 'nl_NL', 'lv_LV', 'el_GR', 'be_BY', 'fr_BE',
 14    'ro_RO', 'ru_UA', 'ru_RU', 'es_VE', 'ca_ES', 'se_NO', 'es_EC', 'id_ID',
 15    'ka_GE', 'es_CL', 'hu_HU', 'wa_BE', 'lt_LT', 'sl_SI', 'hr_HR', 'es_AR',
 16    'es_ES', 'oc_FR', 'gl_ES', 'bg_BG', 'is_IS', 'mk_MK', 'de_AT', 'pt_BR',
 17    'da_DK', 'nn_NO', 'cs_CZ', 'de_LU', 'es_BO', 'sq_AL', 'sk_SK', 'fr_CH',
 18    'de_DE', 'sr_YU', 'br_FR', 'nl_BE', 'sv_FI', 'pl_PL', 'fr_CA', 'fo_FO',
 19    'bs_BA', 'fr_LU', 'kl_GL', 'fa_IR', 'de_BE', 'sv_SE', 'it_CH', 'uk_UA',
 20    'eu_ES', 'vi_VN', 'af_ZA', 'nb_NO', 'en_DK', 'tg_TJ', 'en_US',
 21    'es_ES.ISO8859-1', 'fr_FR.ISO8859-15', 'ru_RU.KOI8-R', 'ko_KR.eucKR']
 22
 23# List known locale values to test against when available.
 24# Dict formatted as ``<locale> : (<decimal_point>, <thousands_sep>)``.  If a
 25# value is not known, use '' .
 26known_numerics = {'fr_FR' : (',', ''), 'en_US':('.', ',')}
 27
 28class _LocaleTests(unittest.TestCase):
 29
 30    def setUp(self):
 31        self.oldlocale = setlocale(LC_NUMERIC)
 32
 33    def tearDown(self):
 34        setlocale(LC_NUMERIC, self.oldlocale)
 35
 36    # Want to know what value was calculated, what it was compared against,
 37    # what function was used for the calculation, what type of data was used,
 38    # the locale that was supposedly set, and the actual locale that is set.
 39    lc_numeric_err_msg = "%s != %s (%s for %s; set to %s, using %s)"
 40
 41    def numeric_tester(self, calc_type, calc_value, data_type, used_locale):
 42        """Compare calculation against known value, if available"""
 43        try:
 44            set_locale = setlocale(LC_NUMERIC)
 45        except Error:
 46            set_locale = "<not able to determine>"
 47        known_value = known_numerics.get(used_locale,
 48                                    ('', ''))[data_type is 'thousands_sep']
 49        if known_value and calc_value:
 50            self.assertEquals(calc_value, known_value,
 51                                self.lc_numeric_err_msg % (
 52                                    calc_value, known_value,
 53                                    calc_type, data_type, set_locale,
 54                                    used_locale))
 55
 56    def test_lc_numeric_nl_langinfo(self):
 57        # Test nl_langinfo against known values
 58        for loc in candidate_locales:
 59            try:
 60                setlocale(LC_NUMERIC, loc)
 61            except Error:
 62                continue
 63            for li, lc in ((RADIXCHAR, "decimal_point"),
 64                            (THOUSEP, "thousands_sep")):
 65                self.numeric_tester('nl_langinfo', nl_langinfo(li), lc, loc)
 66
 67    def test_lc_numeric_localeconv(self):
 68        # Test localeconv against known values
 69        for loc in candidate_locales:
 70            try:
 71                setlocale(LC_NUMERIC, loc)
 72            except Error:
 73                continue
 74            for li, lc in ((RADIXCHAR, "decimal_point"),
 75                            (THOUSEP, "thousands_sep")):
 76                self.numeric_tester('localeconv', localeconv()[lc], lc, loc)
 77
 78    def test_lc_numeric_basic(self):
 79        # Test nl_langinfo against localeconv
 80        for loc in candidate_locales:
 81            try:
 82                setlocale(LC_NUMERIC, loc)
 83            except Error:
 84                continue
 85            for li, lc in ((RADIXCHAR, "decimal_point"),
 86                            (THOUSEP, "thousands_sep")):
 87                nl_radixchar = nl_langinfo(li)
 88                li_radixchar = localeconv()[lc]
 89                try:
 90                    set_locale = setlocale(LC_NUMERIC)
 91                except Error:
 92                    set_locale = "<not able to determine>"
 93                self.assertEquals(nl_radixchar, li_radixchar,
 94                                "%s (nl_langinfo) != %s (localeconv) "
 95                                "(set to %s, using %s)" % (
 96                                                nl_radixchar, li_radixchar,
 97                                                loc, set_locale))
 98
 99    def test_float_parsing(self):
100        # Bug #1391872: Test whether float parsing is okay on European
101        # locales.
102        for loc in candidate_locales:
103            try:
104                setlocale(LC_NUMERIC, loc)
105            except Error:
106                continue
107
108            # Ignore buggy locale databases. (Mac OS 10.4 and some other BSDs)
109            if loc == 'eu_ES' and localeconv()['decimal_point'] == "' ":
110                continue
111
112            self.assertEquals(int(eval('3.14') * 100), 314,
113                                "using eval('3.14') failed for %s" % loc)
114            self.assertEquals(int(float('3.14') * 100), 314,
115                                "using float('3.14') failed for %s" % loc)
116            if localeconv()['decimal_point'] != '.':
117                self.assertRaises(ValueError, float,
118                                  localeconv()['decimal_point'].join(['1', '23']))
119
120def test_main():
121    run_unittest(_LocaleTests)
122
123if __name__ == '__main__':
124    test_main()