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//usr/lib/python2.4/test/test_strptime.py
"""PyUnit testing against strptime""" import unittest import time import locale import re import sys from test import test_support from datetime import date as datetime_date import _strptime class getlang_Tests(unittest.TestCase): """Test _getlang""" def test_basic(self): self.failUnlessEqual(_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.failUnless(strftime_output in testing, "%s: not found in tuple" % error_msg) self.failUnless(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.failUnless(strftime_output in self.LT_ins.am_pm, "AM/PM representation not in tuple") if self.time_tuple[3] < 12: position = 0 else: position = 1 self.failUnless(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.failUnless(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.failUnless(strftime_output == time.strftime(self.LT_ins.LC_date_time, magic_date), "LC_date_time incorrect") strftime_output = time.strftime("%x", magic_date) self.failUnless(strftime_output == time.strftime(self.LT_ins.LC_date, magic_date), "LC_date incorrect") strftime_output = time.strftime("%X", magic_date) self.failUnless(strftime_output == time.strftime(self.LT_ins.LC_time, magic_date), "LC_time incorrect") LT = _strptime.LocaleTime() LT.am_pm = ('', '') self.failUnless(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.failUnlessEqual(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.failUnless(pattern_string.find(self.locale_time.a_weekday[2]) != -1, "did not find abbreviated weekday in pattern string '%s'" % pattern_string) self.failUnless(pattern_string.find(self.locale_time.f_weekday[4]) != -1, "did not find full weekday in pattern string '%s'" % pattern_string) self.failUnless(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.failUnless(r"\\d\+" in 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.failUnless(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.failUnless(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.failUnless(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.failUnless(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.failUnless(_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.failUnless(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.failUnless(time_re.compile("%Z").match("Tokyo (standard time)"), "locale data that contains regex metacharacters is not" " properly escaped") class StrptimeTests(unittest.TestCase): """Tests for _strptime.strptime.""" def setUp(self): """Create testing time tuple.""" self.time_tuple = time.gmtime() def test_TypeError(self): # Make sure ValueError is raised when match fails self.assertRaises(ValueError, _strptime.strptime, data_string="%d", format="%A") def test_unconverteddata(self): # Check ValueError is raised when there is unconverted data self.assertRaises(ValueError, _strptime.strptime, "10 12", "%m") def helper(self, directive, position): """Helper fxn in testing.""" strf_output = time.strftime("%" + directive, self.time_tuple) strp_output = _strptime.strptime(strf_output, "%" + directive) self.failUnless(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(bound, '%y') expected_result = century + int(bound) self.failUnless(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(strf_output, "%I %p") self.failUnless(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_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("UTC", "%Z") self.failUnlessEqual(strp_output.tm_isdst, 0) strp_output = _strptime.strptime("GMT", "%Z") self.failUnlessEqual(strp_output.tm_isdst, 0) if sys.platform == "mac": # Timezones don't really work on MacOS9 return time_tuple = time.localtime() strf_output = time.strftime("%Z") #UTC does not have a timezone strp_output = _strptime.strptime(strf_output, "%Z") locale_time = _strptime.LocaleTime() if time.tzname[0] != time.tzname[1] or not time.daylight: self.failUnless(strp_output[8] == time_tuple[8], "timezone check failed; '%s' -> %s != %s" % (strf_output, strp_output[8], time_tuple[8])) else: self.failUnless(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 if sys.platform == "mac": return #MacOS9 has severely broken timezone support. 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(tz_name, "%Z")[8] self.failUnlessEqual(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(strf_output, "%m %% %Y") self.failUnless(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.failUnless(_strptime.strptime(strf_output.upper(), "%B"), "strptime does not handle ALL-CAPS names properly") self.failUnless(_strptime.strptime(strf_output.lower(), "%B"), "strptime does not handle lowercase names properly") self.failUnless(_strptime.strptime(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('1', '%m') self.failUnless(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.failUnless(_strptime.strptime(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('12 PM', '%I %p')[3], 12) eq(_strptime.strptime('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('%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.strftime(format_string, self.time_tuple), format_string) self.failUnless(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.strftime(format_string, self.time_tuple), format_string) self.failUnless(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.strftime(format_string, self.time_tuple), format_string) self.failUnless(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(strp_input, format_string) self.failUnless(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") 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("10", "%d") _strptime.strptime("2005", "%Y") _strptime._TimeRE_cache.locale_time.lang = "Ni" original_time_re = id(_strptime._TimeRE_cache) _strptime.strptime("10", "%d") self.failIfEqual(original_time_re, id(_strptime._TimeRE_cache)) self.failUnlessEqual(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("10", "%d") self.failUnlessEqual(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 = id(_strptime._TimeRE_cache.locale_time) _strptime._TimeRE_cache.locale_time.lang = "Ni" _strptime.strptime("10", "%d") self.failIfEqual(locale_time_id, id(_strptime._TimeRE_cache.locale_time)) def test_main(): test_support.run_unittest( getlang_Tests, LocaleTime_Tests, TimeRETests, StrptimeTests, Strptime12AMPMTests, JulianTests, CalculationTests, CacheTests ) if __name__ == '__main__': test_main()