""" Unittest for time.strftime """ import calendar import sys import re from test import support import time import unittest # helper functions def fixasctime(s): if s[8] == ' ': s = s[:8] + '0' + s[9:] return s def escapestr(text, ampm): """ Escape text to deal with possible locale values that have regex syntax while allowing regex syntax used for comparison. """ new_text = re.escape(text) new_text = new_text.replace(re.escape(ampm), ampm) new_text = new_text.replace(r'\%', '%') new_text = new_text.replace(r'\:', ':') new_text = new_text.replace(r'\?', '?') return new_text class StrftimeTest(unittest.TestCase): def _update_variables(self, now): # we must update the local variables on every cycle self.gmt = time.gmtime(now) now = time.localtime(now) if now[3] < 12: self.ampm='(AM|am)' else: self.ampm='(PM|pm)' self.jan1 = time.localtime(time.mktime((now[0], 1, 1, 0, 0, 0, 0, 1, 0))) try: if now[8]: self.tz = time.tzname[1] else: self.tz = time.tzname[0] except AttributeError: self.tz = '' if now[3] > 12: self.clock12 = now[3] - 12 elif now[3] > 0: self.clock12 = now[3] else: self.clock12 = 12 self.now = now def setUp(self): from locale import setlocale, LC_TIME saved_locale = setlocale(LC_TIME) setlocale(LC_TIME, 'C') self.addCleanup(setlocale, LC_TIME, saved_locale) def test_strftime(self): now = time.time() self._update_variables(now) self.strftest1(now) self.strftest2(now) if support.verbose: print("Strftime test, platform: %s, Python version: %s" % \ (sys.platform, sys.version.split()[0])) for j in range(-5, 5): for i in range(25): arg = now + (i+j*100)*23*3603 self._update_variables(arg) self.strftest1(arg) self.strftest2(arg) def strftest1(self, now): if support.verbose: print("strftime test for", time.ctime(now)) now = self.now # Make sure any characters that could be taken as regex syntax is # escaped in escapestr() expectations = ( ('%a', calendar.day_abbr[now[6]], 'abbreviated weekday name'), ('%A', calendar.day_name[now[6]], 'full weekday name'), ('%b', calendar.month_abbr[now[1]], 'abbreviated month name'), ('%B', calendar.month_name[now[1]], 'full month name'), # %c see below ('%d', '%02d' % now[2], 'day of month as number (00-31)'), ('%H', '%02d' % now[3], 'hour (00-23)'), ('%I', '%02d' % self.clock12, 'hour (01-12)'), ('%j', '%03d' % now[7], 'julian day (001-366)'), ('%m', '%02d' % now[1], 'month as number (01-12)'), ('%M', '%02d' % now[4], 'minute, (00-59)'), ('%p', self.ampm, 'AM or PM as appropriate'), ('%S', '%02d' % now[5], 'seconds of current time (00-60)'), ('%U', '%02d' % ((now[7] + self.jan1[6])//7), 'week number of the year (Sun 1st)'), ('%w', '0?%d' % ((1+now[6]) % 7), 'weekday as a number (Sun 1st)'), ('%W', '%02d' % ((now[7] + (self.jan1[6] - 1)%7)//7), 'week number of the year (Mon 1st)'), # %x see below ('%X', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'), ('%y', '%02d' % (now[0]%100), 'year without century'), ('%Y', '%d' % now[0], 'year with century'), # %Z see below ('%%', '%', 'single percent sign'), ) for e in expectations: # mustn't raise a value error try: result = time.strftime(e[0], now) except ValueError as error: self.fail("strftime '%s' format gave error: %s" % (e[0], error)) if re.match(escapestr(e[1], self.ampm), result): continue if not result or result[0] == '%': self.fail("strftime does not support standard '%s' format (%s)" % (e[0], e[2])) else: self.fail("Conflict for %s (%s): expected %s, but got %s" % (e[0], e[2], e[1], result)) def strftest2(self, now): nowsecs = str(int(now))[:-1] now = self.now nonstandard_expectations = ( # These are standard but don't have predictable output ('%c', fixasctime(time.asctime(now)), 'near-asctime() format'), ('%x', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), '%m/%d/%y %H:%M:%S'), ('%Z', '%s' % self.tz, 'time zone name'), # These are some platform specific extensions ('%D', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), 'mm/dd/yy'), ('%e', '%2d' % now[2], 'day of month as number, blank padded ( 0-31)'), ('%h', calendar.month_abbr[now[1]], 'abbreviated month name'), ('%k', '%2d' % now[3], 'hour, blank padded ( 0-23)'), ('%n', '\n', 'newline character'), ('%r', '%02d:%02d:%02d %s' % (self.clock12, now[4], now[5], self.ampm), '%I:%M:%S %p'), ('%R', '%02d:%02d' % (now[3], now[4]), '%H:%M'), ('%s', nowsecs, 'seconds since the Epoch in UCT'), ('%t', '\t', 'tab character'), ('%T', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'), ('%3y', '%03d' % (now[0]%100), 'year without century rendered using fieldwidth'), ) for e in nonstandard_expectations: try: result = time.strftime(e[0], now) except ValueError as result: msg = "Error for nonstandard '%s' format (%s): %s" % \ (e[0], e[2], str(result)) if support.verbose: print(msg) continue if re.match(escapestr(e[1], self.ampm), result): if support.verbose: print("Supports nonstandard '%s' format (%s)" % (e[0], e[2])) elif not result or result[0] == '%': if support.verbose: print("Does not appear to support '%s' format (%s)" % \ (e[0], e[2])) else: if support.verbose: print("Conflict for nonstandard '%s' format (%s):" % \ (e[0], e[2])) print(" Expected %s, but got %s" % (e[1], result)) class Y1900Tests(unittest.TestCase): """A limitation of the MS C runtime library is that it crashes if a date before 1900 is passed with a format string containing "%y" """ def test_y_before_1900(self): # Issue #13674, #19634 t = (1899, 1, 1, 0, 0, 0, 0, 0, 0) if sys.platform.startswith(("aix", "sunos", "solaris")): with self.assertRaises(ValueError): time.strftime("%y", t) else: self.assertEqual(time.strftime("%y", t), "99") def test_y_1900(self): self.assertEqual( time.strftime("%y", (1900, 1, 1, 0, 0, 0, 0, 0, 0)), "00") def test_y_after_1900(self): self.assertEqual( time.strftime("%y", (2013, 1, 1, 0, 0, 0, 0, 0, 0)), "13") if __name__ == '__main__': unittest.main()