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474335ce17
Also remove now unnecessary property attributes for thread safety (no longer have lazy attributes) and code simplicity reasons. Timezone storage has been reworked to be simpler and more flexible. All values in LocaleTime instances are lower-cased. This is all done to simplify the module. The module now assumes nothing beyond the strptime function will be exposed for general use beyond providing functionality for strptime.
423 lines
18 KiB
Python
423 lines
18 KiB
Python
"""PyUnit testing against strptime"""
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import unittest
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import time
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import locale
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import re
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import sets
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from test import test_support
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import _strptime
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class getlang_Tests(unittest.TestCase):
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"""Test _getlang"""
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def test_basic(self):
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self.failUnlessEqual(_strptime._getlang(), locale.getlocale(locale.LC_TIME))
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class LocaleTime_Tests(unittest.TestCase):
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"""Tests for _strptime.LocaleTime.
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All values are lower-cased when stored in LocaleTime, so make sure to
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compare values after running ``lower`` on them.
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"""
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def setUp(self):
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"""Create time tuple based on current time."""
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self.time_tuple = time.localtime()
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self.LT_ins = _strptime.LocaleTime()
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def compare_against_time(self, testing, directive, tuple_position,
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error_msg):
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"""Helper method that tests testing against directive based on the
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tuple_position of time_tuple. Uses error_msg as error message.
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"""
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strftime_output = time.strftime(directive, self.time_tuple).lower()
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comparison = testing[self.time_tuple[tuple_position]]
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self.failUnless(strftime_output in testing, "%s: not found in tuple" %
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error_msg)
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self.failUnless(comparison == strftime_output,
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"%s: position within tuple incorrect; %s != %s" %
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(error_msg, comparison, strftime_output))
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def test_weekday(self):
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# Make sure that full and abbreviated weekday names are correct in
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# both string and position with tuple
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self.compare_against_time(self.LT_ins.f_weekday, '%A', 6,
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"Testing of full weekday name failed")
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self.compare_against_time(self.LT_ins.a_weekday, '%a', 6,
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"Testing of abbreviated weekday name failed")
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def test_month(self):
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# Test full and abbreviated month names; both string and position
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# within the tuple
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self.compare_against_time(self.LT_ins.f_month, '%B', 1,
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"Testing against full month name failed")
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self.compare_against_time(self.LT_ins.a_month, '%b', 1,
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"Testing against abbreviated month name failed")
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def test_am_pm(self):
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# Make sure AM/PM representation done properly
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strftime_output = time.strftime("%p", self.time_tuple).lower()
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self.failUnless(strftime_output in self.LT_ins.am_pm,
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"AM/PM representation not in tuple")
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if self.time_tuple[3] < 12: position = 0
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else: position = 1
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self.failUnless(strftime_output == self.LT_ins.am_pm[position],
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"AM/PM representation in the wrong position within the tuple")
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def test_timezone(self):
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# Make sure timezone is correct
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timezone = time.strftime("%Z", self.time_tuple).lower()
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if timezone:
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self.failUnless(timezone in self.LT_ins.timezone[0] or \
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timezone in self.LT_ins.timezone[1],
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"timezone %s not found in %s" %
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(timezone, self.LT_ins.timezone))
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def test_date_time(self):
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# Check that LC_date_time, LC_date, and LC_time are correct
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# the magic date is used so as to not have issues with %c when day of
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# the month is a single digit and has a leading space. This is not an
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# issue since strptime still parses it correctly. The problem is
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# testing these directives for correctness by comparing strftime
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# output.
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magic_date = (1999, 3, 17, 22, 44, 55, 2, 76, 0)
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strftime_output = time.strftime("%c", magic_date)
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self.failUnless(strftime_output == time.strftime(self.LT_ins.LC_date_time,
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magic_date),
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"LC_date_time incorrect")
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strftime_output = time.strftime("%x", magic_date)
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self.failUnless(strftime_output == time.strftime(self.LT_ins.LC_date,
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magic_date),
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"LC_date incorrect")
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strftime_output = time.strftime("%X", magic_date)
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self.failUnless(strftime_output == time.strftime(self.LT_ins.LC_time,
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magic_date),
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"LC_time incorrect")
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LT = _strptime.LocaleTime()
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LT.am_pm = ('', '')
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self.failUnless(LT.LC_time, "LocaleTime's LC directives cannot handle "
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"empty strings")
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def test_lang(self):
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# Make sure lang is set to what _getlang() returns
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# Assuming locale has not changed between now and when self.LT_ins was created
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self.failUnlessEqual(self.LT_ins.lang, _strptime._getlang())
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class TimeRETests(unittest.TestCase):
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"""Tests for TimeRE."""
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def setUp(self):
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"""Construct generic TimeRE object."""
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self.time_re = _strptime.TimeRE()
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self.locale_time = _strptime.LocaleTime()
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def test_pattern(self):
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# Test TimeRE.pattern
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pattern_string = self.time_re.pattern(r"%a %A %d")
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self.failUnless(pattern_string.find(self.locale_time.a_weekday[2]) != -1,
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"did not find abbreviated weekday in pattern string '%s'" %
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pattern_string)
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self.failUnless(pattern_string.find(self.locale_time.f_weekday[4]) != -1,
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"did not find full weekday in pattern string '%s'" %
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pattern_string)
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self.failUnless(pattern_string.find(self.time_re['d']) != -1,
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"did not find 'd' directive pattern string '%s'" %
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pattern_string)
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def test_pattern_escaping(self):
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# Make sure any characters in the format string that might be taken as
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# regex syntax is escaped.
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pattern_string = self.time_re.pattern("\d+")
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self.failUnless(r"\\d\+" in pattern_string,
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"%s does not have re characters escaped properly" %
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pattern_string)
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def test_compile(self):
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# Check that compiled regex is correct
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found = self.time_re.compile(r"%A").match(self.locale_time.f_weekday[6])
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self.failUnless(found and found.group('A') == self.locale_time.f_weekday[6],
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"re object for '%A' failed")
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compiled = self.time_re.compile(r"%a %b")
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found = compiled.match("%s %s" % (self.locale_time.a_weekday[4],
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self.locale_time.a_month[4]))
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self.failUnless(found,
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"Match failed with '%s' regex and '%s' string" %
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(compiled.pattern, "%s %s" % (self.locale_time.a_weekday[4],
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self.locale_time.a_month[4])))
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self.failUnless(found.group('a') == self.locale_time.a_weekday[4] and
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found.group('b') == self.locale_time.a_month[4],
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"re object couldn't find the abbreviated weekday month in "
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"'%s' using '%s'; group 'a' = '%s', group 'b' = %s'" %
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(found.string, found.re.pattern, found.group('a'),
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found.group('b')))
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for directive in ('a','A','b','B','c','d','H','I','j','m','M','p','S',
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'U','w','W','x','X','y','Y','Z','%'):
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compiled = self.time_re.compile("%" + directive)
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found = compiled.match(time.strftime("%" + directive))
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self.failUnless(found, "Matching failed on '%s' using '%s' regex" %
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(time.strftime("%" + directive),
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compiled.pattern))
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def test_blankpattern(self):
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# Make sure when tuple or something has no values no regex is generated.
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# Fixes bug #661354
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test_locale = _strptime.LocaleTime()
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test_locale.timezone = (sets.ImmutableSet(), sets.ImmutableSet())
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self.failUnless(_strptime.TimeRE(test_locale).pattern("%Z") == '',
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"with timezone == ('',''), TimeRE().pattern('%Z') != ''")
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def test_matching_with_escapes(self):
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# Make sure a format that requires escaping of characters works
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compiled_re = self.time_re.compile("\w+ %m")
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found = compiled_re.match("\w+ 10")
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self.failUnless(found, "Escaping failed of format '\w+ 10'")
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class StrptimeTests(unittest.TestCase):
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"""Tests for _strptime.strptime."""
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def setUp(self):
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"""Create testing time tuple."""
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self.time_tuple = time.gmtime()
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def test_TypeError(self):
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# Make sure ValueError is raised when match fails
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self.assertRaises(ValueError, _strptime.strptime, data_string="%d",
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format="%A")
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def test_unconverteddata(self):
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# Check ValueError is raised when there is unconverted data
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self.assertRaises(ValueError, _strptime.strptime, "10 12", "%m")
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def helper(self, directive, position):
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"""Helper fxn in testing."""
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strf_output = time.strftime("%" + directive, self.time_tuple)
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strp_output = _strptime.strptime(strf_output, "%" + directive)
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self.failUnless(strp_output[position] == self.time_tuple[position],
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"testing of '%s' directive failed; '%s' -> %s != %s" %
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(directive, strf_output, strp_output[position],
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self.time_tuple[position]))
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def test_year(self):
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# Test that the year is handled properly
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for directive in ('y', 'Y'):
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self.helper(directive, 0)
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# Must also make sure %y values are correct for bounds set by Open Group
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for century, bounds in ((1900, ('69', '99')), (2000, ('00', '68'))):
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for bound in bounds:
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strp_output = _strptime.strptime(bound, '%y')
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expected_result = century + int(bound)
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self.failUnless(strp_output[0] == expected_result,
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"'y' test failed; passed in '%s' "
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"and returned '%s'" % (bound, strp_output[0]))
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def test_month(self):
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# Test for month directives
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for directive in ('B', 'b', 'm'):
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self.helper(directive, 1)
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def test_day(self):
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# Test for day directives
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self.helper('d', 2)
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def test_hour(self):
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# Test hour directives
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self.helper('H', 3)
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strf_output = time.strftime("%I %p", self.time_tuple)
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strp_output = _strptime.strptime(strf_output, "%I %p")
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self.failUnless(strp_output[3] == self.time_tuple[3],
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"testing of '%%I %%p' directive failed; '%s' -> %s != %s" %
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(strf_output, strp_output[3], self.time_tuple[3]))
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def test_minute(self):
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# Test minute directives
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self.helper('M', 4)
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def test_second(self):
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# Test second directives
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self.helper('S', 5)
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def test_weekday(self):
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# Test weekday directives
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for directive in ('A', 'a', 'w'):
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self.helper(directive,6)
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def test_julian(self):
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# Test julian directives
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self.helper('j', 7)
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def test_timezone(self):
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# Test timezone directives.
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# When gmtime() is used with %Z, entire result of strftime() is empty.
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# Check for equal timezone names deals with bad locale info when this
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# occurs; first found in FreeBSD 4.4.
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strp_output = _strptime.strptime("UTC", "%Z")
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self.failUnlessEqual(strp_output.tm_isdst, 0)
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strp_output = _strptime.strptime("GMT", "%Z")
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self.failUnlessEqual(strp_output.tm_isdst, 0)
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time_tuple = time.localtime()
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strf_output = time.strftime("%Z") #UTC does not have a timezone
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strp_output = _strptime.strptime(strf_output, "%Z")
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locale_time = _strptime.LocaleTime()
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if time.tzname[0] != time.tzname[1] or not time.daylight:
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self.failUnless(strp_output[8] == time_tuple[8],
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"timezone check failed; '%s' -> %s != %s" %
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(strf_output, strp_output[8], time_tuple[8]))
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else:
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self.failUnless(strp_output[8] == -1,
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"LocaleTime().timezone has duplicate values and "
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"time.daylight but timezone value not set to -1")
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def test_date_time(self):
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# Test %c directive
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for position in range(6):
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self.helper('c', position)
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def test_date(self):
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# Test %x directive
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for position in range(0,3):
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self.helper('x', position)
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def test_time(self):
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# Test %X directive
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for position in range(3,6):
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self.helper('X', position)
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def test_percent(self):
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# Make sure % signs are handled properly
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strf_output = time.strftime("%m %% %Y", self.time_tuple)
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strp_output = _strptime.strptime(strf_output, "%m %% %Y")
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self.failUnless(strp_output[0] == self.time_tuple[0] and
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strp_output[1] == self.time_tuple[1],
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"handling of percent sign failed")
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def test_caseinsensitive(self):
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# Should handle names case-insensitively.
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strf_output = time.strftime("%B", self.time_tuple)
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self.failUnless(_strptime.strptime(strf_output.upper(), "%B"),
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"strptime does not handle ALL-CAPS names properly")
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self.failUnless(_strptime.strptime(strf_output.lower(), "%B"),
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"strptime does not handle lowercase names properly")
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self.failUnless(_strptime.strptime(strf_output.capitalize(), "%B"),
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"strptime does not handle capword names properly")
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def test_defaults(self):
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# Default return value should be (1900, 1, 1, 0, 0, 0, 0, 1, 0)
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defaults = (1900, 1, 1, 0, 0, 0, 0, 1, -1)
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strp_output = _strptime.strptime('1', '%m')
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self.failUnless(strp_output == defaults,
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"Default values for strptime() are incorrect;"
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" %s != %s" % (strp_output, defaults))
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class Strptime12AMPMTests(unittest.TestCase):
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"""Test a _strptime regression in '%I %p' at 12 noon (12 PM)"""
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def test_twelve_noon_midnight(self):
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eq = self.assertEqual
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eq(time.strptime('12 PM', '%I %p')[3], 12)
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eq(time.strptime('12 AM', '%I %p')[3], 0)
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eq(_strptime.strptime('12 PM', '%I %p')[3], 12)
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eq(_strptime.strptime('12 AM', '%I %p')[3], 0)
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class JulianTests(unittest.TestCase):
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"""Test a _strptime regression that all julian (1-366) are accepted"""
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def test_all_julian_days(self):
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eq = self.assertEqual
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for i in range(1, 367):
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# use 2004, since it is a leap year, we have 366 days
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eq(_strptime.strptime('%d 2004' % i, '%j %Y')[7], i)
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class CalculationTests(unittest.TestCase):
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"""Test that strptime() fills in missing info correctly"""
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def setUp(self):
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self.time_tuple = time.gmtime()
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def test_julian_calculation(self):
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# Make sure that when Julian is missing that it is calculated
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format_string = "%Y %m %d %H %M %S %w %Z"
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result = _strptime.strptime(time.strftime(format_string, self.time_tuple),
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format_string)
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self.failUnless(result.tm_yday == self.time_tuple.tm_yday,
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"Calculation of tm_yday failed; %s != %s" %
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(result.tm_yday, self.time_tuple.tm_yday))
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def test_gregorian_calculation(self):
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# Test that Gregorian date can be calculated from Julian day
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format_string = "%Y %H %M %S %w %j %Z"
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result = _strptime.strptime(time.strftime(format_string, self.time_tuple),
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format_string)
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self.failUnless(result.tm_year == self.time_tuple.tm_year and
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result.tm_mon == self.time_tuple.tm_mon and
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result.tm_mday == self.time_tuple.tm_mday,
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"Calculation of Gregorian date failed;"
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"%s-%s-%s != %s-%s-%s" %
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(result.tm_year, result.tm_mon, result.tm_mday,
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self.time_tuple.tm_year, self.time_tuple.tm_mon,
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self.time_tuple.tm_mday))
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def test_day_of_week_calculation(self):
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# Test that the day of the week is calculated as needed
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format_string = "%Y %m %d %H %S %j %Z"
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result = _strptime.strptime(time.strftime(format_string, self.time_tuple),
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format_string)
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self.failUnless(result.tm_wday == self.time_tuple.tm_wday,
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"Calculation of day of the week failed;"
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"%s != %s" % (result.tm_wday, self.time_tuple.tm_wday))
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class CacheTests(unittest.TestCase):
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"""Test that caching works properly."""
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def test_time_re_recreation(self):
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# Make sure cache is recreated when current locale does not match what
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# cached object was created with.
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_strptime.strptime("10", "%d")
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_strptime._TimeRE_cache.locale_time.lang = "Ni"
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original_time_re = id(_strptime._TimeRE_cache)
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_strptime.strptime("10", "%d")
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self.failIfEqual(original_time_re, id(_strptime._TimeRE_cache))
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def test_regex_cleanup(self):
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# Make sure cached regexes are discarded when cache becomes "full".
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try:
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del _strptime._regex_cache['%d']
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except KeyError:
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pass
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bogus_key = 0
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while len(_strptime._regex_cache) <= _strptime._CACHE_MAX_SIZE:
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_strptime._regex_cache[bogus_key] = None
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bogus_key += 1
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_strptime.strptime("10", "%d")
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self.failUnlessEqual(len(_strptime._regex_cache), 1)
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def test_new_localetime(self):
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# A new LocaleTime instance should be created when a new TimeRE object
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# is created.
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locale_time_id = id(_strptime._TimeRE_cache.locale_time)
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_strptime._TimeRE_cache.locale_time.lang = "Ni"
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_strptime.strptime("10", "%d")
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self.failIfEqual(locale_time_id,
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id(_strptime._TimeRE_cache.locale_time))
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def test_main():
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test_support.run_unittest(
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getlang_Tests,
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LocaleTime_Tests,
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TimeRETests,
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StrptimeTests,
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Strptime12AMPMTests,
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JulianTests,
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CalculationTests,
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CacheTests
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)
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if __name__ == '__main__':
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test_main()
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