cpython/Lib/test/test_strptime.py

885 lines
42 KiB
Python

"""PyUnit testing against strptime"""
import unittest
import time
import locale
import re
import os
import platform
import sys
from test import support
from test.support import warnings_helper
from test.support import skip_if_buggy_ucrt_strfptime, run_with_locales
from datetime import date as datetime_date
import _strptime
libc_ver = platform.libc_ver()
if libc_ver[0] == 'glibc':
glibc_ver = tuple(map(int, libc_ver[1].split('.')))
else:
glibc_ver = None
class getlang_Tests(unittest.TestCase):
"""Test _getlang"""
def test_basic(self):
self.assertEqual(_strptime._getlang(), locale.getlocale(locale.LC_TIME))
class LocaleTime_Tests(unittest.TestCase):
"""Tests for _strptime.LocaleTime.
All values are lower-cased when stored in LocaleTime, so make sure to
compare values after running ``lower`` on them.
"""
def setUp(self):
"""Create time tuple based on current time."""
self.time_tuple = time.localtime()
self.LT_ins = _strptime.LocaleTime()
def compare_against_time(self, testing, directive, tuple_position,
error_msg):
"""Helper method that tests testing against directive based on the
tuple_position of time_tuple. Uses error_msg as error message.
"""
strftime_output = time.strftime(directive, self.time_tuple).lower()
comparison = testing[self.time_tuple[tuple_position]]
self.assertIn(strftime_output, testing,
"%s: not found in tuple" % error_msg)
self.assertEqual(comparison, strftime_output,
"%s: position within tuple incorrect; %s != %s" %
(error_msg, comparison, strftime_output))
def test_weekday(self):
# Make sure that full and abbreviated weekday names are correct in
# both string and position with tuple
self.compare_against_time(self.LT_ins.f_weekday, '%A', 6,
"Testing of full weekday name failed")
self.compare_against_time(self.LT_ins.a_weekday, '%a', 6,
"Testing of abbreviated weekday name failed")
def test_month(self):
# Test full and abbreviated month names; both string and position
# within the tuple
self.compare_against_time(self.LT_ins.f_month, '%B', 1,
"Testing against full month name failed")
self.compare_against_time(self.LT_ins.a_month, '%b', 1,
"Testing against abbreviated month name failed")
def test_am_pm(self):
# Make sure AM/PM representation done properly
strftime_output = time.strftime("%p", self.time_tuple).lower()
self.assertIn(strftime_output, self.LT_ins.am_pm,
"AM/PM representation not in tuple")
if self.time_tuple[3] < 12: position = 0
else: position = 1
self.assertEqual(self.LT_ins.am_pm[position], strftime_output,
"AM/PM representation in the wrong position within the tuple")
@unittest.skipIf(
support.is_emscripten, "musl libc issue on Emscripten, bpo-46390"
)
def test_timezone(self):
# Make sure timezone is correct
timezone = time.strftime("%Z", self.time_tuple).lower()
if timezone:
self.assertTrue(timezone in self.LT_ins.timezone[0] or
timezone in self.LT_ins.timezone[1],
"timezone %s not found in %s" %
(timezone, self.LT_ins.timezone))
def test_date_time(self):
# Check that LC_date_time, LC_date, and LC_time are correct
# the magic date is used so as to not have issues with %c when day of
# the month is a single digit and has a leading space. This is not an
# issue since strptime still parses it correctly. The problem is
# testing these directives for correctness by comparing strftime
# output.
magic_date = (1999, 3, 17, 22, 44, 55, 2, 76, 0)
strftime_output = time.strftime("%c", magic_date)
self.assertEqual(time.strftime(self.LT_ins.LC_date_time, magic_date),
strftime_output, "LC_date_time incorrect")
strftime_output = time.strftime("%x", magic_date)
self.assertEqual(time.strftime(self.LT_ins.LC_date, magic_date),
strftime_output, "LC_date incorrect")
strftime_output = time.strftime("%X", magic_date)
self.assertEqual(time.strftime(self.LT_ins.LC_time, magic_date),
strftime_output, "LC_time incorrect")
LT = _strptime.LocaleTime()
LT.am_pm = ('', '')
self.assertTrue(LT.LC_time, "LocaleTime's LC directives cannot handle "
"empty strings")
def test_lang(self):
# Make sure lang is set to what _getlang() returns
# Assuming locale has not changed between now and when self.LT_ins was created
self.assertEqual(self.LT_ins.lang, _strptime._getlang())
class TimeRETests(unittest.TestCase):
"""Tests for TimeRE."""
def setUp(self):
"""Construct generic TimeRE object."""
self.time_re = _strptime.TimeRE()
self.locale_time = _strptime.LocaleTime()
def test_pattern(self):
# Test TimeRE.pattern
pattern_string = self.time_re.pattern(r"%a %A %d %Y")
self.assertTrue(pattern_string.find(self.locale_time.a_weekday[2]) != -1,
"did not find abbreviated weekday in pattern string '%s'" %
pattern_string)
self.assertTrue(pattern_string.find(self.locale_time.f_weekday[4]) != -1,
"did not find full weekday in pattern string '%s'" %
pattern_string)
self.assertTrue(pattern_string.find(self.time_re['d']) != -1,
"did not find 'd' directive pattern string '%s'" %
pattern_string)
def test_pattern_escaping(self):
# Make sure any characters in the format string that might be taken as
# regex syntax is escaped.
pattern_string = self.time_re.pattern(r"\d+")
self.assertIn(r"\\d\+", pattern_string,
"%s does not have re characters escaped properly" %
pattern_string)
@skip_if_buggy_ucrt_strfptime
def test_compile(self):
# Check that compiled regex is correct
found = self.time_re.compile(r"%A").match(self.locale_time.f_weekday[6])
self.assertTrue(found and found.group('A') == self.locale_time.f_weekday[6],
"re object for '%A' failed")
compiled = self.time_re.compile(r"%a %b")
found = compiled.match("%s %s" % (self.locale_time.a_weekday[4],
self.locale_time.a_month[4]))
self.assertTrue(found,
"Match failed with '%s' regex and '%s' string" %
(compiled.pattern, "%s %s" % (self.locale_time.a_weekday[4],
self.locale_time.a_month[4])))
self.assertTrue(found.group('a') == self.locale_time.a_weekday[4] and
found.group('b') == self.locale_time.a_month[4],
"re object couldn't find the abbreviated weekday month in "
"'%s' using '%s'; group 'a' = '%s', group 'b' = %s'" %
(found.string, found.re.pattern, found.group('a'),
found.group('b')))
for directive in ('a','A','b','B','c','d','G','H','I','j','m','M','p',
'S','u','U','V','w','W','x','X','y','Y','Z','%'):
fmt = "%d %Y" if directive == 'd' else "%" + directive
compiled = self.time_re.compile(fmt)
found = compiled.match(time.strftime(fmt))
self.assertTrue(found, "Matching failed on '%s' using '%s' regex" %
(time.strftime(fmt),
compiled.pattern))
def test_blankpattern(self):
# Make sure when tuple or something has no values no regex is generated.
# Fixes bug #661354
test_locale = _strptime.LocaleTime()
test_locale.timezone = (frozenset(), frozenset())
self.assertEqual(_strptime.TimeRE(test_locale).pattern("%Z"), '',
"with timezone == ('',''), TimeRE().pattern('%Z') != ''")
def test_matching_with_escapes(self):
# Make sure a format that requires escaping of characters works
compiled_re = self.time_re.compile(r"\w+ %m")
found = compiled_re.match(r"\w+ 10")
self.assertTrue(found, r"Escaping failed of format '\w+ 10'")
def test_locale_data_w_regex_metacharacters(self):
# Check that if locale data contains regex metacharacters they are
# escaped properly.
# Discovered by bug #1039270 .
locale_time = _strptime.LocaleTime()
locale_time.timezone = (frozenset(("utc", "gmt",
"Tokyo (standard time)")),
frozenset("Tokyo (daylight time)"))
time_re = _strptime.TimeRE(locale_time)
self.assertTrue(time_re.compile("%Z").match("Tokyo (standard time)"),
"locale data that contains regex metacharacters is not"
" properly escaped")
def test_whitespace_substitution(self):
# When pattern contains whitespace, make sure it is taken into account
# so as to not allow subpatterns to end up next to each other and
# "steal" characters from each other.
pattern = self.time_re.pattern('%j %H')
self.assertFalse(re.match(pattern, "180"))
self.assertTrue(re.match(pattern, "18 0"))
class StrptimeTests(unittest.TestCase):
"""Tests for _strptime.strptime."""
def setUp(self):
"""Create testing time tuples."""
self.time_tuple = time.localtime()
def test_ValueError(self):
# Make sure ValueError is raised when match fails or format is bad
self.assertRaises(ValueError, _strptime._strptime_time, data_string="%d",
format="%A")
for bad_format in ("%", "% ", "%e"):
try:
_strptime._strptime_time("2005", bad_format)
except ValueError:
continue
except Exception as err:
self.fail("'%s' raised %s, not ValueError" %
(bad_format, err.__class__.__name__))
else:
self.fail("'%s' did not raise ValueError" % bad_format)
msg_week_no_year_or_weekday = r"ISO week directive '%V' must be used with " \
r"the ISO year directive '%G' and a weekday directive " \
r"\('%A', '%a', '%w', or '%u'\)."
msg_week_not_compatible = r"ISO week directive '%V' is incompatible with " \
r"the year directive '%Y'. Use the ISO year '%G' instead."
msg_julian_not_compatible = r"Day of the year directive '%j' is not " \
r"compatible with ISO year directive '%G'. Use '%Y' instead."
msg_year_no_week_or_weekday = r"ISO year directive '%G' must be used with " \
r"the ISO week directive '%V' and a weekday directive " \
r"\('%A', '%a', '%w', or '%u'\)."
locale_time = _strptime.LocaleTime()
# Ambiguous or incomplete cases using ISO year/week/weekday directives
subtests = [
# 1. ISO week (%V) is specified, but the year is specified with %Y
# instead of %G
("1999 50", "%Y %V", msg_week_no_year_or_weekday),
("1999 50 5", "%Y %V %u", msg_week_not_compatible),
# 2. ISO year (%G) and ISO week (%V) are specified, but weekday is not
("1999 51", "%G %V", msg_year_no_week_or_weekday),
# 3. ISO year (%G) and weekday are specified, but ISO week (%V) is not
("1999 {}".format(locale_time.f_weekday[5]), "%G %A",
msg_year_no_week_or_weekday),
("1999 {}".format(locale_time.a_weekday[5]), "%G %a",
msg_year_no_week_or_weekday),
("1999 5", "%G %w", msg_year_no_week_or_weekday),
("1999 5", "%G %u", msg_year_no_week_or_weekday),
# 4. ISO year is specified alone (e.g. time.strptime('2015', '%G'))
("2015", "%G", msg_year_no_week_or_weekday),
# 5. Julian/ordinal day (%j) is specified with %G, but not %Y
("1999 256", "%G %j", msg_julian_not_compatible),
("1999 50 5 256", "%G %V %u %j", msg_julian_not_compatible),
# ISO week specified alone
("50", "%V", msg_week_no_year_or_weekday),
# ISO year is unspecified, falling back to year
("50 5", "%V %u", msg_week_no_year_or_weekday),
# 6. Invalid ISO weeks
("2019-00-1", "%G-%V-%u",
"time data '2019-00-1' does not match format '%G-%V-%u'"),
("2019-54-1", "%G-%V-%u",
"time data '2019-54-1' does not match format '%G-%V-%u'"),
("2021-53-1", "%G-%V-%u", "Invalid week: 53"),
]
for (data_string, format, message) in subtests:
with self.subTest(data_string=data_string, format=format):
with self.assertRaisesRegex(ValueError, message):
_strptime._strptime(data_string, format)
def test_strptime_exception_context(self):
# check that this doesn't chain exceptions needlessly (see #17572)
with self.assertRaises(ValueError) as e:
_strptime._strptime_time('', '%D')
self.assertIs(e.exception.__suppress_context__, True)
# additional check for IndexError branch (issue #19545)
with self.assertRaises(ValueError) as e:
_strptime._strptime_time('19', '%Y %')
self.assertIsNone(e.exception.__context__)
def test_unconverteddata(self):
# Check ValueError is raised when there is unconverted data
self.assertRaises(ValueError, _strptime._strptime_time, "10 12", "%m")
def roundtrip(self, fmt, position, time_tuple=None):
"""Helper fxn in testing."""
if time_tuple is None:
time_tuple = self.time_tuple
strf_output = time.strftime(fmt, time_tuple)
strp_output = _strptime._strptime_time(strf_output, fmt)
self.assertEqual(strp_output[position], time_tuple[position],
"testing of %r format failed; %r -> %r != %r" %
(fmt, strf_output, strp_output[position],
time_tuple[position]))
if support.verbose >= 3:
print("testing of %r format: %r -> %r" %
(fmt, strf_output, strp_output[position]))
def test_year(self):
# Test that the year is handled properly
self.roundtrip('%Y', 0)
self.roundtrip('%y', 0)
self.roundtrip('%Y', 0, (1900, 1, 1, 0, 0, 0, 0, 1, 0))
# Must also make sure %y values are correct for bounds set by Open Group
strptime = _strptime._strptime_time
self.assertEqual(strptime('00', '%y')[0], 2000)
self.assertEqual(strptime('68', '%y')[0], 2068)
self.assertEqual(strptime('69', '%y')[0], 1969)
self.assertEqual(strptime('99', '%y')[0], 1999)
def test_month(self):
# Test for month directives
self.roundtrip('%m', 1)
@run_with_locales('LC_TIME', 'C', 'en_US', 'fr_FR', 'de_DE', 'ja_JP', 'he_IL', '')
def test_month_locale(self):
# Test for month directives
self.roundtrip('%B', 1)
self.roundtrip('%b', 1)
for m in range(1, 13):
self.roundtrip('%B', 1, (1900, m, 1, 0, 0, 0, 0, 1, 0))
self.roundtrip('%b', 1, (1900, m, 1, 0, 0, 0, 0, 1, 0))
def test_day(self):
# Test for day directives
self.roundtrip('%d %Y', 2)
def test_hour(self):
# Test hour directives
self.roundtrip('%H', 3)
# NB: Only works on locales with AM/PM
@run_with_locales('LC_TIME', 'C', 'en_US', 'ja_JP')
def test_hour_locale(self):
# Test hour directives
self.roundtrip('%I %p', 3)
def test_minute(self):
# Test minute directives
self.roundtrip('%M', 4)
def test_second(self):
# Test second directives
self.roundtrip('%S', 5)
def test_fraction(self):
# Test microseconds
import datetime
d = datetime.datetime(2012, 12, 20, 12, 34, 56, 78987)
tup, frac, _ = _strptime._strptime(str(d), format="%Y-%m-%d %H:%M:%S.%f")
self.assertEqual(frac, d.microsecond)
def test_weekday(self):
# Test weekday directives
self.roundtrip('%w', 6)
self.roundtrip('%u', 6)
@run_with_locales('LC_TIME', 'C', 'en_US', 'fr_FR', 'de_DE', 'ja_JP', '')
def test_weekday_locale(self):
# Test weekday directives
self.roundtrip('%A', 6)
self.roundtrip('%a', 6)
def test_julian(self):
# Test julian directives
self.roundtrip('%j', 7)
def test_offset(self):
one_hour = 60 * 60
half_hour = 30 * 60
half_minute = 30
(*_, offset), _, offset_fraction = _strptime._strptime("+0130", "%z")
self.assertEqual(offset, one_hour + half_hour)
self.assertEqual(offset_fraction, 0)
(*_, offset), _, offset_fraction = _strptime._strptime("-0100", "%z")
self.assertEqual(offset, -one_hour)
self.assertEqual(offset_fraction, 0)
(*_, offset), _, offset_fraction = _strptime._strptime("-013030", "%z")
self.assertEqual(offset, -(one_hour + half_hour + half_minute))
self.assertEqual(offset_fraction, 0)
(*_, offset), _, offset_fraction = _strptime._strptime("-013030.000001", "%z")
self.assertEqual(offset, -(one_hour + half_hour + half_minute))
self.assertEqual(offset_fraction, -1)
(*_, offset), _, offset_fraction = _strptime._strptime("+01:00", "%z")
self.assertEqual(offset, one_hour)
self.assertEqual(offset_fraction, 0)
(*_, offset), _, offset_fraction = _strptime._strptime("-01:30", "%z")
self.assertEqual(offset, -(one_hour + half_hour))
self.assertEqual(offset_fraction, 0)
(*_, offset), _, offset_fraction = _strptime._strptime("-01:30:30", "%z")
self.assertEqual(offset, -(one_hour + half_hour + half_minute))
self.assertEqual(offset_fraction, 0)
(*_, offset), _, offset_fraction = _strptime._strptime("-01:30:30.000001", "%z")
self.assertEqual(offset, -(one_hour + half_hour + half_minute))
self.assertEqual(offset_fraction, -1)
(*_, offset), _, offset_fraction = _strptime._strptime("+01:30:30.001", "%z")
self.assertEqual(offset, one_hour + half_hour + half_minute)
self.assertEqual(offset_fraction, 1000)
(*_, offset), _, offset_fraction = _strptime._strptime("Z", "%z")
self.assertEqual(offset, 0)
self.assertEqual(offset_fraction, 0)
def test_bad_offset(self):
with self.assertRaises(ValueError):
_strptime._strptime("-01:30:30.", "%z")
with self.assertRaises(ValueError):
_strptime._strptime("-0130:30", "%z")
with self.assertRaises(ValueError):
_strptime._strptime("-01:30:30.1234567", "%z")
with self.assertRaises(ValueError):
_strptime._strptime("-01:30:30:123456", "%z")
with self.assertRaises(ValueError) as err:
_strptime._strptime("-01:3030", "%z")
self.assertEqual("Inconsistent use of : in -01:3030", str(err.exception))
@skip_if_buggy_ucrt_strfptime
@unittest.skipIf(
support.is_emscripten, "musl libc issue on Emscripten, bpo-46390"
)
def test_timezone(self):
# Test timezone directives.
# When gmtime() is used with %Z, entire result of strftime() is empty.
# Check for equal timezone names deals with bad locale info when this
# occurs; first found in FreeBSD 4.4.
strp_output = _strptime._strptime_time("UTC", "%Z")
self.assertEqual(strp_output.tm_isdst, 0)
strp_output = _strptime._strptime_time("GMT", "%Z")
self.assertEqual(strp_output.tm_isdst, 0)
time_tuple = time.localtime()
strf_output = time.strftime("%Z") #UTC does not have a timezone
strp_output = _strptime._strptime_time(strf_output, "%Z")
locale_time = _strptime.LocaleTime()
if time.tzname[0] != time.tzname[1] or not time.daylight:
self.assertTrue(strp_output[8] == time_tuple[8],
"timezone check failed; '%s' -> %s != %s" %
(strf_output, strp_output[8], time_tuple[8]))
else:
self.assertTrue(strp_output[8] == -1,
"LocaleTime().timezone has duplicate values and "
"time.daylight but timezone value not set to -1")
@unittest.skipUnless(
hasattr(time, "tzset"), "time module has no attribute tzset"
)
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
self.skipTest('need non-UTC/GMT timezone')
with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
support.swap_attr(time, 'daylight', 1), \
support.swap_attr(time, 'tzset', lambda: None):
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
# NB: Does not roundtrip in some locales due to the ambiguity of
# the date and time representation (bugs in locales?):
# * Seconds are not included: bem_ZM, bokmal, ff_SN, nb_NO, nn_NO,
# no_NO, norwegian, nynorsk.
# * Hours are in 12-hour notation without AM/PM indication: hy_AM,
# id_ID, ms_MY.
# * Year is not included: ha_NG.
# * Use non-Gregorian calendar: lo_LA, thai, th_TH.
# On Windows: ar_IN, ar_SA, fa_IR, ps_AF.
#
# BUG: Generates regexp that does not match the current date and time
# for lzh_TW.
@run_with_locales('LC_TIME', 'C', 'en_US', 'fr_FR', 'de_DE', 'ja_JP',
'he_IL', 'eu_ES', 'ar_AE', 'mfe_MU', 'yo_NG',
'csb_PL', 'br_FR', 'gez_ET', 'brx_IN',
'my_MM', 'or_IN', 'shn_MM', 'az_IR')
def test_date_time_locale(self):
# Test %c directive
loc = locale.getlocale(locale.LC_TIME)[0]
if glibc_ver and glibc_ver < (2, 31) and loc == 'br_FR':
self.skipTest('%c in locale br_FR does not include time')
now = time.time()
self.roundtrip('%c', slice(0, 6), time.localtime(now))
# 1 hour 20 minutes 30 seconds ago
self.roundtrip('%c', slice(0, 6), time.localtime(now - 4830))
# 12 hours ago
self.roundtrip('%c', slice(0, 6), time.localtime(now - 12*3600))
# different days of the week
for i in range(1, 7):
self.roundtrip('%c', slice(0, 6), time.localtime(now - i*24*3600))
# different months
for i in range(1, 12):
self.roundtrip('%c', slice(0, 6), time.localtime(now - i*30*24*3600))
# different year
self.roundtrip('%c', slice(0, 6), time.localtime(now - 366*24*3600))
# NB: Dates before 1969 do not roundtrip on some locales:
# az_IR, bo_CN, bo_IN, dz_BT, eu_ES, eu_FR, fa_IR, or_IN.
@run_with_locales('LC_TIME', 'C', 'en_US', 'fr_FR', 'de_DE', 'ja_JP',
'he_IL', 'ar_AE', 'mfe_MU', 'yo_NG',
'csb_PL', 'br_FR', 'gez_ET', 'brx_IN',
'my_MM', 'shn_MM')
def test_date_time_locale2(self):
# Test %c directive
self.roundtrip('%c', slice(0, 6), (1900, 1, 1, 0, 0, 0, 0, 1, 0))
self.roundtrip('%c', slice(0, 6), (1800, 1, 1, 0, 0, 0, 0, 1, 0))
# NB: Does not roundtrip because use non-Gregorian calendar:
# lo_LA, thai, th_TH. On Windows: ar_IN, ar_SA, fa_IR, ps_AF.
# BUG: Generates regexp that does not match the current date
# for lzh_TW.
@run_with_locales('LC_TIME', 'C', 'en_US', 'fr_FR', 'de_DE', 'ja_JP',
'he_IL', 'eu_ES', 'ar_AE',
'az_IR', 'my_MM', 'or_IN', 'shn_MM')
def test_date_locale(self):
# Test %x directive
now = time.time()
self.roundtrip('%x', slice(0, 3), time.localtime(now))
# different days of the week
for i in range(1, 7):
self.roundtrip('%x', slice(0, 3), time.localtime(now - i*24*3600))
# different months
for i in range(1, 12):
self.roundtrip('%x', slice(0, 3), time.localtime(now - i*30*24*3600))
# different year
self.roundtrip('%x', slice(0, 3), time.localtime(now - 366*24*3600))
# NB: Dates before 1969 do not roundtrip on many locales, including C.
@unittest.skipIf(
support.is_emscripten or support.is_wasi,
"musl libc issue on Emscripten, bpo-46390"
)
@run_with_locales('LC_TIME', 'en_US', 'fr_FR', 'de_DE', 'ja_JP',
'eu_ES', 'ar_AE', 'my_MM', 'shn_MM')
def test_date_locale2(self):
# Test %x directive
self.roundtrip('%x', slice(0, 3), (1900, 1, 1, 0, 0, 0, 0, 1, 0))
self.roundtrip('%x', slice(0, 3), (1800, 1, 1, 0, 0, 0, 0, 1, 0))
# NB: Does not roundtrip in some locales due to the ambiguity of
# the time representation (bugs in locales?):
# * Seconds are not included: bokmal, ff_SN, nb_NO, nn_NO, no_NO,
# norwegian, nynorsk.
# * Hours are in 12-hour notation without AM/PM indication: hy_AM,
# ms_MY, sm_WS.
# BUG: Generates regexp that does not match the current time for lzh_TW.
@run_with_locales('LC_TIME', 'C', 'en_US', 'fr_FR', 'de_DE', 'ja_JP',
'aa_ET', 'am_ET', 'az_IR', 'byn_ER', 'fa_IR', 'gez_ET',
'my_MM', 'om_ET', 'or_IN', 'shn_MM', 'sid_ET', 'so_SO',
'ti_ET', 'tig_ER', 'wal_ET')
def test_time_locale(self):
# Test %X directive
loc = locale.getlocale(locale.LC_TIME)[0]
pos = slice(3, 6)
if glibc_ver and glibc_ver < (2, 29) and loc in {
'aa_ET', 'am_ET', 'byn_ER', 'gez_ET', 'om_ET',
'sid_ET', 'so_SO', 'ti_ET', 'tig_ER', 'wal_ET'}:
# Hours are in 12-hour notation without AM/PM indication.
# Ignore hours.
pos = slice(4, 6)
now = time.time()
self.roundtrip('%X', pos, time.localtime(now))
# 1 hour 20 minutes 30 seconds ago
self.roundtrip('%X', pos, time.localtime(now - 4830))
# 12 hours ago
self.roundtrip('%X', pos, time.localtime(now - 12*3600))
def test_percent(self):
# Make sure % signs are handled properly
strf_output = time.strftime("%m %% %Y", self.time_tuple)
strp_output = _strptime._strptime_time(strf_output, "%m %% %Y")
self.assertTrue(strp_output[0] == self.time_tuple[0] and
strp_output[1] == self.time_tuple[1],
"handling of percent sign failed")
def test_caseinsensitive(self):
# Should handle names case-insensitively.
strf_output = time.strftime("%B", self.time_tuple)
self.assertTrue(_strptime._strptime_time(strf_output.upper(), "%B"),
"strptime does not handle ALL-CAPS names properly")
self.assertTrue(_strptime._strptime_time(strf_output.lower(), "%B"),
"strptime does not handle lowercase names properly")
self.assertTrue(_strptime._strptime_time(strf_output.capitalize(), "%B"),
"strptime does not handle capword names properly")
def test_defaults(self):
# Default return value should be (1900, 1, 1, 0, 0, 0, 0, 1, 0)
defaults = (1900, 1, 1, 0, 0, 0, 0, 1, -1)
strp_output = _strptime._strptime_time('1', '%m')
self.assertTrue(strp_output == defaults,
"Default values for strptime() are incorrect;"
" %s != %s" % (strp_output, defaults))
def test_escaping(self):
# Make sure all characters that have regex significance are escaped.
# Parentheses are in a purposeful order; will cause an error of
# unbalanced parentheses when the regex is compiled if they are not
# escaped.
# Test instigated by bug #796149 .
need_escaping = r".^$*+?{}\[]|)("
self.assertTrue(_strptime._strptime_time(need_escaping, need_escaping))
@warnings_helper.ignore_warnings(category=DeprecationWarning) # gh-70647
def test_feb29_on_leap_year_without_year(self):
time.strptime("Feb 29", "%b %d")
@warnings_helper.ignore_warnings(category=DeprecationWarning) # gh-70647
def test_mar1_comes_after_feb29_even_when_omitting_the_year(self):
self.assertLess(
time.strptime("Feb 29", "%b %d"),
time.strptime("Mar 1", "%b %d"))
class Strptime12AMPMTests(unittest.TestCase):
"""Test a _strptime regression in '%I %p' at 12 noon (12 PM)"""
def test_twelve_noon_midnight(self):
eq = self.assertEqual
eq(time.strptime('12 PM', '%I %p')[3], 12)
eq(time.strptime('12 AM', '%I %p')[3], 0)
eq(_strptime._strptime_time('12 PM', '%I %p')[3], 12)
eq(_strptime._strptime_time('12 AM', '%I %p')[3], 0)
class JulianTests(unittest.TestCase):
"""Test a _strptime regression that all julian (1-366) are accepted"""
def test_all_julian_days(self):
eq = self.assertEqual
for i in range(1, 367):
# use 2004, since it is a leap year, we have 366 days
eq(_strptime._strptime_time('%d 2004' % i, '%j %Y')[7], i)
class CalculationTests(unittest.TestCase):
"""Test that strptime() fills in missing info correctly"""
def setUp(self):
self.time_tuple = time.gmtime()
@skip_if_buggy_ucrt_strfptime
def test_julian_calculation(self):
# Make sure that when Julian is missing that it is calculated
format_string = "%Y %m %d %H %M %S %w %Z"
result = _strptime._strptime_time(time.strftime(format_string, self.time_tuple),
format_string)
self.assertTrue(result.tm_yday == self.time_tuple.tm_yday,
"Calculation of tm_yday failed; %s != %s" %
(result.tm_yday, self.time_tuple.tm_yday))
@skip_if_buggy_ucrt_strfptime
def test_gregorian_calculation(self):
# Test that Gregorian date can be calculated from Julian day
format_string = "%Y %H %M %S %w %j %Z"
result = _strptime._strptime_time(time.strftime(format_string, self.time_tuple),
format_string)
self.assertTrue(result.tm_year == self.time_tuple.tm_year and
result.tm_mon == self.time_tuple.tm_mon and
result.tm_mday == self.time_tuple.tm_mday,
"Calculation of Gregorian date failed; "
"%s-%s-%s != %s-%s-%s" %
(result.tm_year, result.tm_mon, result.tm_mday,
self.time_tuple.tm_year, self.time_tuple.tm_mon,
self.time_tuple.tm_mday))
@skip_if_buggy_ucrt_strfptime
def test_day_of_week_calculation(self):
# Test that the day of the week is calculated as needed
format_string = "%Y %m %d %H %S %j %Z"
result = _strptime._strptime_time(time.strftime(format_string, self.time_tuple),
format_string)
self.assertTrue(result.tm_wday == self.time_tuple.tm_wday,
"Calculation of day of the week failed; "
"%s != %s" % (result.tm_wday, self.time_tuple.tm_wday))
if support.is_android:
# Issue #26929: strftime() on Android incorrectly formats %V or %G for
# the last or the first incomplete week in a year.
_ymd_excluded = ((1905, 1, 1), (1906, 12, 31), (2008, 12, 29),
(1917, 12, 31))
_formats_excluded = ('%G %V',)
else:
_ymd_excluded = ()
_formats_excluded = ()
@unittest.skipIf(sys.platform.startswith('aix'),
'bpo-29972: broken test on AIX')
def test_week_of_year_and_day_of_week_calculation(self):
# Should be able to infer date if given year, week of year (%U or %W)
# and day of the week
def test_helper(ymd_tuple, test_reason):
for year_week_format in ('%Y %W', '%Y %U', '%G %V'):
if (year_week_format in self._formats_excluded and
ymd_tuple in self._ymd_excluded):
return
for weekday_format in ('%w', '%u', '%a', '%A'):
format_string = year_week_format + ' ' + weekday_format
with self.subTest(test_reason,
date=ymd_tuple,
format=format_string):
dt_date = datetime_date(*ymd_tuple)
strp_input = dt_date.strftime(format_string)
strp_output = _strptime._strptime_time(strp_input,
format_string)
msg = "%r: %s != %s" % (strp_input,
strp_output[7],
dt_date.timetuple()[7])
self.assertEqual(strp_output[:3], ymd_tuple, msg)
test_helper((1901, 1, 3), "week 0")
test_helper((1901, 1, 8), "common case")
test_helper((1901, 1, 13), "day on Sunday")
test_helper((1901, 1, 14), "day on Monday")
test_helper((1905, 1, 1), "Jan 1 on Sunday")
test_helper((1906, 1, 1), "Jan 1 on Monday")
test_helper((1906, 1, 7), "first Sunday in a year starting on Monday")
test_helper((1905, 12, 31), "Dec 31 on Sunday")
test_helper((1906, 12, 31), "Dec 31 on Monday")
test_helper((2008, 12, 29), "Monday in the last week of the year")
test_helper((2008, 12, 22), "Monday in the second-to-last week of the "
"year")
test_helper((1978, 10, 23), "randomly chosen date")
test_helper((2004, 12, 18), "randomly chosen date")
test_helper((1978, 10, 23), "year starting and ending on Monday while "
"date not on Sunday or Monday")
test_helper((1917, 12, 17), "year starting and ending on Monday with "
"a Monday not at the beginning or end "
"of the year")
test_helper((1917, 12, 31), "Dec 31 on Monday with year starting and "
"ending on Monday")
test_helper((2007, 1, 7), "First Sunday of 2007")
test_helper((2007, 1, 14), "Second Sunday of 2007")
test_helper((2006, 12, 31), "Last Sunday of 2006")
test_helper((2006, 12, 24), "Second to last Sunday of 2006")
def test_week_0(self):
def check(value, format, *expected):
self.assertEqual(_strptime._strptime_time(value, format)[:-1], expected)
check('2015 0 0', '%Y %U %w', 2014, 12, 28, 0, 0, 0, 6, 362)
check('2015 0 0', '%Y %W %w', 2015, 1, 4, 0, 0, 0, 6, 4)
check('2015 1 1', '%G %V %u', 2014, 12, 29, 0, 0, 0, 0, 363)
check('2015 0 1', '%Y %U %w', 2014, 12, 29, 0, 0, 0, 0, 363)
check('2015 0 1', '%Y %W %w', 2014, 12, 29, 0, 0, 0, 0, 363)
check('2015 1 2', '%G %V %u', 2014, 12, 30, 0, 0, 0, 1, 364)
check('2015 0 2', '%Y %U %w', 2014, 12, 30, 0, 0, 0, 1, 364)
check('2015 0 2', '%Y %W %w', 2014, 12, 30, 0, 0, 0, 1, 364)
check('2015 1 3', '%G %V %u', 2014, 12, 31, 0, 0, 0, 2, 365)
check('2015 0 3', '%Y %U %w', 2014, 12, 31, 0, 0, 0, 2, 365)
check('2015 0 3', '%Y %W %w', 2014, 12, 31, 0, 0, 0, 2, 365)
check('2015 1 4', '%G %V %u', 2015, 1, 1, 0, 0, 0, 3, 1)
check('2015 0 4', '%Y %U %w', 2015, 1, 1, 0, 0, 0, 3, 1)
check('2015 0 4', '%Y %W %w', 2015, 1, 1, 0, 0, 0, 3, 1)
check('2015 1 5', '%G %V %u', 2015, 1, 2, 0, 0, 0, 4, 2)
check('2015 0 5', '%Y %U %w', 2015, 1, 2, 0, 0, 0, 4, 2)
check('2015 0 5', '%Y %W %w', 2015, 1, 2, 0, 0, 0, 4, 2)
check('2015 1 6', '%G %V %u', 2015, 1, 3, 0, 0, 0, 5, 3)
check('2015 0 6', '%Y %U %w', 2015, 1, 3, 0, 0, 0, 5, 3)
check('2015 0 6', '%Y %W %w', 2015, 1, 3, 0, 0, 0, 5, 3)
check('2015 1 7', '%G %V %u', 2015, 1, 4, 0, 0, 0, 6, 4)
check('2009 0 0', '%Y %U %w', 2008, 12, 28, 0, 0, 0, 6, 363)
check('2009 0 0', '%Y %W %w', 2009, 1, 4, 0, 0, 0, 6, 4)
check('2009 1 1', '%G %V %u', 2008, 12, 29, 0, 0, 0, 0, 364)
check('2009 0 1', '%Y %U %w', 2008, 12, 29, 0, 0, 0, 0, 364)
check('2009 0 1', '%Y %W %w', 2008, 12, 29, 0, 0, 0, 0, 364)
check('2009 1 2', '%G %V %u', 2008, 12, 30, 0, 0, 0, 1, 365)
check('2009 0 2', '%Y %U %w', 2008, 12, 30, 0, 0, 0, 1, 365)
check('2009 0 2', '%Y %W %w', 2008, 12, 30, 0, 0, 0, 1, 365)
check('2009 1 3', '%G %V %u', 2008, 12, 31, 0, 0, 0, 2, 366)
check('2009 0 3', '%Y %U %w', 2008, 12, 31, 0, 0, 0, 2, 366)
check('2009 0 3', '%Y %W %w', 2008, 12, 31, 0, 0, 0, 2, 366)
check('2009 1 4', '%G %V %u', 2009, 1, 1, 0, 0, 0, 3, 1)
check('2009 0 4', '%Y %U %w', 2009, 1, 1, 0, 0, 0, 3, 1)
check('2009 0 4', '%Y %W %w', 2009, 1, 1, 0, 0, 0, 3, 1)
check('2009 1 5', '%G %V %u', 2009, 1, 2, 0, 0, 0, 4, 2)
check('2009 0 5', '%Y %U %w', 2009, 1, 2, 0, 0, 0, 4, 2)
check('2009 0 5', '%Y %W %w', 2009, 1, 2, 0, 0, 0, 4, 2)
check('2009 1 6', '%G %V %u', 2009, 1, 3, 0, 0, 0, 5, 3)
check('2009 0 6', '%Y %U %w', 2009, 1, 3, 0, 0, 0, 5, 3)
check('2009 0 6', '%Y %W %w', 2009, 1, 3, 0, 0, 0, 5, 3)
check('2009 1 7', '%G %V %u', 2009, 1, 4, 0, 0, 0, 6, 4)
class CacheTests(unittest.TestCase):
"""Test that caching works properly."""
def test_time_re_recreation(self):
# Make sure cache is recreated when current locale does not match what
# cached object was created with.
_strptime._strptime_time("10 2004", "%d %Y")
_strptime._strptime_time("2005", "%Y")
_strptime._TimeRE_cache.locale_time.lang = "Ni"
original_time_re = _strptime._TimeRE_cache
_strptime._strptime_time("10 2004", "%d %Y")
self.assertIsNot(original_time_re, _strptime._TimeRE_cache)
self.assertEqual(len(_strptime._regex_cache), 1)
def test_regex_cleanup(self):
# Make sure cached regexes are discarded when cache becomes "full".
try:
del _strptime._regex_cache['%d %Y']
except KeyError:
pass
bogus_key = 0
while len(_strptime._regex_cache) <= _strptime._CACHE_MAX_SIZE:
_strptime._regex_cache[bogus_key] = None
bogus_key += 1
_strptime._strptime_time("10 2004", "%d %Y")
self.assertEqual(len(_strptime._regex_cache), 1)
def test_new_localetime(self):
# A new LocaleTime instance should be created when a new TimeRE object
# is created.
locale_time_id = _strptime._TimeRE_cache.locale_time
_strptime._TimeRE_cache.locale_time.lang = "Ni"
_strptime._strptime_time("10 2004", "%d %Y")
self.assertIsNot(locale_time_id, _strptime._TimeRE_cache.locale_time)
def test_TimeRE_recreation_locale(self):
# The TimeRE instance should be recreated upon changing the locale.
with support.run_with_locale('LC_TIME', 'en_US.UTF8'):
_strptime._strptime_time('10 2004', '%d %Y')
# Get id of current cache object.
first_time_re = _strptime._TimeRE_cache
try:
# Change the locale and force a recreation of the cache.
locale.setlocale(locale.LC_TIME, ('de_DE', 'UTF8'))
_strptime._strptime_time('10 2004', '%d %Y')
# Get the new cache object's id.
second_time_re = _strptime._TimeRE_cache
# They should not be equal.
self.assertIsNot(first_time_re, second_time_re)
# Possible test locale is not supported while initial locale is.
# If this is the case just suppress the exception and fall-through
# to the resetting to the original locale.
except locale.Error:
self.skipTest('test needs de_DE.UTF8 locale')
@support.run_with_tz('STD-1DST,M4.1.0,M10.1.0')
def test_TimeRE_recreation_timezone(self):
# The TimeRE instance should be recreated upon changing the timezone.
oldtzname = time.tzname
tm = _strptime._strptime_time(time.tzname[0], '%Z')
self.assertEqual(tm.tm_isdst, 0)
tm = _strptime._strptime_time(time.tzname[1], '%Z')
self.assertEqual(tm.tm_isdst, 1)
# Get id of current cache object.
first_time_re = _strptime._TimeRE_cache
# Change the timezone and force a recreation of the cache.
os.environ['TZ'] = 'EST+05EDT,M3.2.0,M11.1.0'
time.tzset()
tm = _strptime._strptime_time(time.tzname[0], '%Z')
self.assertEqual(tm.tm_isdst, 0)
tm = _strptime._strptime_time(time.tzname[1], '%Z')
self.assertEqual(tm.tm_isdst, 1)
# Get the new cache object's id.
second_time_re = _strptime._TimeRE_cache
# They should not be equal.
self.assertIsNot(first_time_re, second_time_re)
# Make sure old names no longer accepted.
with self.assertRaises(ValueError):
_strptime._strptime_time(oldtzname[0], '%Z')
with self.assertRaises(ValueError):
_strptime._strptime_time(oldtzname[1], '%Z')
if __name__ == '__main__':
unittest.main()