Lib/test/test__locale.py

   1 from test.test_support import run_unittest
   2 from _locale import (setlocale, LC_NUMERIC, localeconv, Error)
   3 try:
   4     from _locale import (RADIXCHAR, THOUSEP, nl_langinfo)
   5 except ImportError:
   6     nl_langinfo = None
   7
   8 import unittest
   9 import sys
  10 from platform import uname
  11
  12 if uname()[0] == "Darwin":
  13     maj, min, mic = [int(part) for part in uname()[2].split(".")]
  14     if (maj, min, mic) < (8, 0, 0):
  15         raise unittest.SkipTest("locale support broken for OS X < 10.4")
  16
  17 candidate_locales = ['es_UY', 'fr_FR', 'fi_FI', 'es_CO', 'pt_PT', 'it_IT',
  18     'et_EE', 'es_PY', 'no_NO', 'nl_NL', 'lv_LV', 'el_GR', 'be_BY', 'fr_BE',
  19     'ro_RO', 'ru_UA', 'ru_RU', 'es_VE', 'ca_ES', 'se_NO', 'es_EC', 'id_ID',
  20     'ka_GE', 'es_CL', 'hu_HU', 'wa_BE', 'lt_LT', 'sl_SI', 'hr_HR', 'es_AR',
  21     'es_ES', 'oc_FR', 'gl_ES', 'bg_BG', 'is_IS', 'mk_MK', 'de_AT', 'pt_BR',
  22     'da_DK', 'nn_NO', 'cs_CZ', 'de_LU', 'es_BO', 'sq_AL', 'sk_SK', 'fr_CH',
  23     'de_DE', 'sr_YU', 'br_FR', 'nl_BE', 'sv_FI', 'pl_PL', 'fr_CA', 'fo_FO',
  24     'bs_BA', 'fr_LU', 'kl_GL', 'fa_IR', 'de_BE', 'sv_SE', 'it_CH', 'uk_UA',
  25     'eu_ES', 'vi_VN', 'af_ZA', 'nb_NO', 'en_DK', 'tg_TJ', 'en_US',
  26     'es_ES.ISO8859-1', 'fr_FR.ISO8859-15', 'ru_RU.KOI8-R', 'ko_KR.eucKR']
  27
  28 # Workaround for MSVC6(debug) crash bug
  29 if "MSC v.1200" in sys.version:
  30     def accept(loc):
  31         a = loc.split(".")
  32         return not(len(a) == 2 and len(a[-1]) >= 9)
  33     candidate_locales = [loc for loc in candidate_locales if accept(loc)]
  34
  35 # List known locale values to test against when available.
  36 # Dict formatted as ``<locale> : (<decimal_point>, <thousands_sep>)``.  If a
  37 # value is not known, use '' .
  38 known_numerics = {'fr_FR' : (',', ''), 'en_US':('.', ',')}
  39
  40 class _LocaleTests(unittest.TestCase):
  41
  42     def setUp(self):
  43         self.oldlocale = setlocale(LC_NUMERIC)
  44
  45     def tearDown(self):
  46         setlocale(LC_NUMERIC, self.oldlocale)
  47
  48     # Want to know what value was calculated, what it was compared against,
  49     # what function was used for the calculation, what type of data was used,
  50     # the locale that was supposedly set, and the actual locale that is set.
  51     lc_numeric_err_msg = "%s != %s (%s for %s; set to %s, using %s)"
  52
  53     def numeric_tester(self, calc_type, calc_value, data_type, used_locale):
  54         """Compare calculation against known value, if available"""
  55         try:
  56             set_locale = setlocale(LC_NUMERIC)
  57         except Error:
  58             set_locale = "<not able to determine>"
  59         known_value = known_numerics.get(used_locale,
  60                                     ('', ''))[data_type == 'thousands_sep']
  61         if known_value and calc_value:
  62             self.assertEquals(calc_value, known_value,
  63                                 self.lc_numeric_err_msg % (
  64                                     calc_value, known_value,
  65                                     calc_type, data_type, set_locale,
  66                                     used_locale))
  67
  68     @unittest.skipUnless(nl_langinfo, "nl_langinfo is not available")
  69     def test_lc_numeric_nl_langinfo(self):
  70         # Test nl_langinfo against known values
  71         for loc in candidate_locales:
  72             try:
  73                 setlocale(LC_NUMERIC, loc)
  74             except Error:
  75                 continue
  76             for li, lc in ((RADIXCHAR, "decimal_point"),
  77                             (THOUSEP, "thousands_sep")):
  78                 self.numeric_tester('nl_langinfo', nl_langinfo(li), lc, loc)
  79
  80     def test_lc_numeric_localeconv(self):
  81         # Test localeconv against known values
  82         for loc in candidate_locales:
  83             try:
  84                 setlocale(LC_NUMERIC, loc)
  85             except Error:
  86                 continue
  87             for lc in ("decimal_point", "thousands_sep"):
  88                 self.numeric_tester('localeconv', localeconv()[lc], lc, loc)
  89
  90     @unittest.skipUnless(nl_langinfo, "nl_langinfo is not available")
  91     def test_lc_numeric_basic(self):
  92         # Test nl_langinfo against localeconv
  93         for loc in candidate_locales:
  94             try:
  95                 setlocale(LC_NUMERIC, loc)
  96             except Error:
  97                 continue
  98             for li, lc in ((RADIXCHAR, "decimal_point"),
  99                             (THOUSEP, "thousands_sep")):
 100                 nl_radixchar = nl_langinfo(li)
 101                 li_radixchar = localeconv()[lc]
 102                 try:
 103                     set_locale = setlocale(LC_NUMERIC)
 104                 except Error:
 105                     set_locale = "<not able to determine>"
 106                 self.assertEquals(nl_radixchar, li_radixchar,
 107                                 "%s (nl_langinfo) != %s (localeconv) "
 108                                 "(set to %s, using %s)" % (
 109                                                 nl_radixchar, li_radixchar,
 110                                                 loc, set_locale))
 111
 112     def test_float_parsing(self):
 113         # Bug #1391872: Test whether float parsing is okay on European
 114         # locales.
 115         for loc in candidate_locales:
 116             try:
 117                 setlocale(LC_NUMERIC, loc)
 118             except Error:
 119                 continue
 120
 121             # Ignore buggy locale databases. (Mac OS 10.4 and some other BSDs)
 122             if loc == 'eu_ES' and localeconv()['decimal_point'] == "' ":
 123                 continue
 124
 125             self.assertEquals(int(eval('3.14') * 100), 314,
 126                                 "using eval('3.14') failed for %s" % loc)
 127             self.assertEquals(int(float('3.14') * 100), 314,
 128                                 "using float('3.14') failed for %s" % loc)
 129             if localeconv()['decimal_point'] != '.':
 130                 self.assertRaises(ValueError, float,
 131                                   localeconv()['decimal_point'].join(['1', '23']))
 132
 133 def test_main():
 134     run_unittest(_LocaleTests)
 135
 136 if __name__ == '__main__':
 137     test_main()