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"""PyUnit testing against strptime"""
import unittest
import time
import locale
import re
import sys
from test import support
from datetime import date as datetime_date
import _strptime
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.assertTrue(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.assertTrue(strftime_output == self.LT_ins.am_pm[position],
"AM/PM representation in the wrong position within the tuple")
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.assertTrue(strftime_output == time.strftime(self.LT_ins.LC_date_time,
magic_date),
"LC_date_time incorrect")
strftime_output = time.strftime("%x", magic_date)
self.assertTrue(strftime_output == time.strftime(self.LT_ins.LC_date,
magic_date),
"LC_date incorrect")
strftime_output = time.strftime("%X", magic_date)
self.assertTrue(strftime_output == time.strftime(self.LT_ins.LC_time,
magic_date),
"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")
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("\d+")
self.assertIn(r"\\d\+", pattern_string,
"%s does not have re characters escaped properly" %
pattern_string)
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','H','I','j','m','M','p','S',
'U','w','W','x','X','y','Y','Z','%'):
compiled = self.time_re.compile("%" + directive)
found = compiled.match(time.strftime("%" + directive))
self.assertTrue(found, "Matching failed on '%s' using '%s' regex" %
(time.strftime("%" + directive),
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.assertTrue(_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("\w+ %m")
found = compiled_re.match("\w+ 10")
self.assertTrue(found, "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 to subpatterns to end up next to each other and
# "steal" characters from each other.
pattern = self.time_re.pattern('%j %H')
self.assertTrue(not 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 tuple."""
self.time_tuple = time.gmtime()
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)
def test_unconverteddata(self):
# Check ValueError is raised when there is unconverted data
self.assertRaises(ValueError, _strptime._strptime_time, "10 12", "%m")
def helper(self, directive, position):
"""Helper fxn in testing."""
strf_output = time.strftime("%" + directive, self.time_tuple)
strp_output = _strptime._strptime_time(strf_output, "%" + directive)
self.assertTrue(strp_output[position] == self.time_tuple[position],
"testing of '%s' directive failed; '%s' -> %s != %s" %
(directive, strf_output, strp_output[position],
self.time_tuple[position]))
def test_year(self):
# Test that the year is handled properly
for directive in ('y', 'Y'):
self.helper(directive, 0)
# Must also make sure %y values are correct for bounds set by Open Group
for century, bounds in ((1900, ('69', '99')), (2000, ('00', '68'))):
for bound in bounds:
strp_output = _strptime._strptime_time(bound, '%y')
expected_result = century + int(bound)
self.assertTrue(strp_output[0] == expected_result,
"'y' test failed; passed in '%s' "
"and returned '%s'" % (bound, strp_output[0]))
def test_month(self):
# Test for month directives
for directive in ('B', 'b', 'm'):
self.helper(directive, 1)
def test_day(self):
# Test for day directives
self.helper('d', 2)
def test_hour(self):
# Test hour directives
self.helper('H', 3)
strf_output = time.strftime("%I %p", self.time_tuple)
strp_output = _strptime._strptime_time(strf_output, "%I %p")
self.assertTrue(strp_output[3] == self.time_tuple[3],
"testing of '%%I %%p' directive failed; '%s' -> %s != %s" %
(strf_output, strp_output[3], self.time_tuple[3]))
def test_minute(self):
# Test minute directives
self.helper('M', 4)
def test_second(self):
# Test second directives
self.helper('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
for directive in ('A', 'a', 'w'):
self.helper(directive,6)
def test_julian(self):
# Test julian directives
self.helper('j', 7)
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")
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"):
return
try:
original_tzname = time.tzname
original_daylight = time.daylight
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))
finally:
time.tzname = original_tzname
time.daylight = original_daylight
def test_date_time(self):
# Test %c directive
for position in range(6):
self.helper('c', position)
def test_date(self):
# Test %x directive
for position in range(0,3):
self.helper('x', position)
def test_time(self):
# Test %X directive
for position in range(3,6):
self.helper('X', position)
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 = ".^$*+?{}\[]|)("
self.assertTrue(_strptime._strptime_time(need_escaping, need_escaping))
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()
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))
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))
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))
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 directive in ('W', 'U'):
format_string = "%%Y %%%s %%w" % directive
dt_date = datetime_date(*ymd_tuple)
strp_input = dt_date.strftime(format_string)
strp_output = _strptime._strptime_time(strp_input, format_string)
self.assertTrue(strp_output[:3] == ymd_tuple,
"%s(%s) test failed w/ '%s': %s != %s (%s != %s)" %
(test_reason, directive, strp_input,
strp_output[:3], ymd_tuple,
strp_output[7], dt_date.timetuple()[7]))
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")
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", "%d")
_strptime._strptime_time("2005", "%Y")
_strptime._TimeRE_cache.locale_time.lang = "Ni"
original_time_re = _strptime._TimeRE_cache
_strptime._strptime_time("10", "%d")
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']
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", "%d")
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", "%d")
self.assertIsNot(locale_time_id, _strptime._TimeRE_cache.locale_time)
def test_TimeRE_recreation(self):
# The TimeRE instance should be recreated upon changing the locale.
locale_info = locale.getlocale(locale.LC_TIME)
try:
locale.setlocale(locale.LC_TIME, ('en_US', 'UTF8'))
except locale.Error:
return
try:
_strptime._strptime_time('10', '%d')
# 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', '%d')
# 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:
pass
# Make sure we don't trample on the locale setting once we leave the
# test.
finally:
locale.setlocale(locale.LC_TIME, locale_info)
def test_main():
support.run_unittest(
getlang_Tests,
LocaleTime_Tests,
TimeRETests,
StrptimeTests,
Strptime12AMPMTests,
JulianTests,
CalculationTests,
CacheTests
)
if __name__ == '__main__':
test_main()
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