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Diffstat (limited to 'lib/python2.7/test/test_strptime.py')
| -rw-r--r-- | lib/python2.7/test/test_strptime.py | 567 |
1 files changed, 567 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_strptime.py b/lib/python2.7/test/test_strptime.py new file mode 100644 index 0000000..58e4309 --- /dev/null +++ b/lib/python2.7/test/test_strptime.py @@ -0,0 +1,567 @@ +"""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.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") + + 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") + 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.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("\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.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 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, 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)) + + def test_feb29_on_leap_year_without_year(self): + time.strptime("Feb 29", "%b %d") + + 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() + + 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, 01, 07), "First Sunday of 2007") + test_helper((2007, 01, 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(): + test_support.run_unittest( + getlang_Tests, + LocaleTime_Tests, + TimeRETests, + StrptimeTests, + Strptime12AMPMTests, + JulianTests, + CalculationTests, + CacheTests + ) + + +if __name__ == '__main__': + test_main() |