1""" 2Unittest for time.strftime 3""" 4 5import calendar 6import sys 7import re 8from test import support 9import time 10import unittest 11 12 13# helper functions 14def fixasctime(s): 15 if s[8] == ' ': 16 s = s[:8] + '0' + s[9:] 17 return s 18 19def escapestr(text, ampm): 20 """ 21 Escape text to deal with possible locale values that have regex 22 syntax while allowing regex syntax used for comparison. 23 """ 24 new_text = re.escape(text) 25 new_text = new_text.replace(re.escape(ampm), ampm) 26 new_text = new_text.replace(r'\%', '%') 27 new_text = new_text.replace(r'\:', ':') 28 new_text = new_text.replace(r'\?', '?') 29 return new_text 30 31 32class StrftimeTest(unittest.TestCase): 33 34 def _update_variables(self, now): 35 # we must update the local variables on every cycle 36 self.gmt = time.gmtime(now) 37 now = time.localtime(now) 38 39 if now[3] < 12: self.ampm='(AM|am)' 40 else: self.ampm='(PM|pm)' 41 42 self.jan1 = time.localtime(time.mktime((now[0], 1, 1, 0, 0, 0, 0, 1, 0))) 43 44 try: 45 if now[8]: self.tz = time.tzname[1] 46 else: self.tz = time.tzname[0] 47 except AttributeError: 48 self.tz = '' 49 50 if now[3] > 12: self.clock12 = now[3] - 12 51 elif now[3] > 0: self.clock12 = now[3] 52 else: self.clock12 = 12 53 54 self.now = now 55 56 def setUp(self): 57 try: 58 import java 59 java.util.Locale.setDefault(java.util.Locale.US) 60 except ImportError: 61 import locale 62 locale.setlocale(locale.LC_TIME, 'C') 63 64 def test_strftime(self): 65 now = time.time() 66 self._update_variables(now) 67 self.strftest1(now) 68 self.strftest2(now) 69 70 if support.verbose: 71 print("Strftime test, platform: %s, Python version: %s" % \ 72 (sys.platform, sys.version.split()[0])) 73 74 for j in range(-5, 5): 75 for i in range(25): 76 arg = now + (i+j*100)*23*3603 77 self._update_variables(arg) 78 self.strftest1(arg) 79 self.strftest2(arg) 80 81 def strftest1(self, now): 82 if support.verbose: 83 print("strftime test for", time.ctime(now)) 84 now = self.now 85 # Make sure any characters that could be taken as regex syntax is 86 # escaped in escapestr() 87 expectations = ( 88 ('%a', calendar.day_abbr[now[6]], 'abbreviated weekday name'), 89 ('%A', calendar.day_name[now[6]], 'full weekday name'), 90 ('%b', calendar.month_abbr[now[1]], 'abbreviated month name'), 91 ('%B', calendar.month_name[now[1]], 'full month name'), 92 # %c see below 93 ('%d', '%02d' % now[2], 'day of month as number (00-31)'), 94 ('%H', '%02d' % now[3], 'hour (00-23)'), 95 ('%I', '%02d' % self.clock12, 'hour (01-12)'), 96 ('%j', '%03d' % now[7], 'julian day (001-366)'), 97 ('%m', '%02d' % now[1], 'month as number (01-12)'), 98 ('%M', '%02d' % now[4], 'minute, (00-59)'), 99 ('%p', self.ampm, 'AM or PM as appropriate'), 100 ('%S', '%02d' % now[5], 'seconds of current time (00-60)'), 101 ('%U', '%02d' % ((now[7] + self.jan1[6])//7), 102 'week number of the year (Sun 1st)'), 103 ('%w', '0?%d' % ((1+now[6]) % 7), 'weekday as a number (Sun 1st)'), 104 ('%W', '%02d' % ((now[7] + (self.jan1[6] - 1)%7)//7), 105 'week number of the year (Mon 1st)'), 106 # %x see below 107 ('%X', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'), 108 ('%y', '%02d' % (now[0]%100), 'year without century'), 109 ('%Y', '%d' % now[0], 'year with century'), 110 # %Z see below 111 ('%%', '%', 'single percent sign'), 112 ) 113 114 for e in expectations: 115 # musn't raise a value error 116 try: 117 result = time.strftime(e[0], now) 118 except ValueError as error: 119 self.fail("strftime '%s' format gave error: %s" % (e[0], error)) 120 if re.match(escapestr(e[1], self.ampm), result): 121 continue 122 if not result or result[0] == '%': 123 self.fail("strftime does not support standard '%s' format (%s)" 124 % (e[0], e[2])) 125 else: 126 self.fail("Conflict for %s (%s): expected %s, but got %s" 127 % (e[0], e[2], e[1], result)) 128 129 def strftest2(self, now): 130 nowsecs = str(int(now))[:-1] 131 now = self.now 132 133 nonstandard_expectations = ( 134 # These are standard but don't have predictable output 135 ('%c', fixasctime(time.asctime(now)), 'near-asctime() format'), 136 ('%x', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), 137 '%m/%d/%y %H:%M:%S'), 138 ('%Z', '%s' % self.tz, 'time zone name'), 139 140 # These are some platform specific extensions 141 ('%D', '%02d/%02d/%02d' % (now[1], now[2], (now[0]%100)), 'mm/dd/yy'), 142 ('%e', '%2d' % now[2], 'day of month as number, blank padded ( 0-31)'), 143 ('%h', calendar.month_abbr[now[1]], 'abbreviated month name'), 144 ('%k', '%2d' % now[3], 'hour, blank padded ( 0-23)'), 145 ('%n', '\n', 'newline character'), 146 ('%r', '%02d:%02d:%02d %s' % (self.clock12, now[4], now[5], self.ampm), 147 '%I:%M:%S %p'), 148 ('%R', '%02d:%02d' % (now[3], now[4]), '%H:%M'), 149 ('%s', nowsecs, 'seconds since the Epoch in UCT'), 150 ('%t', '\t', 'tab character'), 151 ('%T', '%02d:%02d:%02d' % (now[3], now[4], now[5]), '%H:%M:%S'), 152 ('%3y', '%03d' % (now[0]%100), 153 'year without century rendered using fieldwidth'), 154 ) 155 156 157 for e in nonstandard_expectations: 158 try: 159 result = time.strftime(e[0], now) 160 except ValueError as result: 161 msg = "Error for nonstandard '%s' format (%s): %s" % \ 162 (e[0], e[2], str(result)) 163 if support.verbose: 164 print(msg) 165 continue 166 if re.match(escapestr(e[1], self.ampm), result): 167 if support.verbose: 168 print("Supports nonstandard '%s' format (%s)" % (e[0], e[2])) 169 elif not result or result[0] == '%': 170 if support.verbose: 171 print("Does not appear to support '%s' format (%s)" % \ 172 (e[0], e[2])) 173 else: 174 if support.verbose: 175 print("Conflict for nonstandard '%s' format (%s):" % \ 176 (e[0], e[2])) 177 print(" Expected %s, but got %s" % (e[1], result)) 178 179 180class Y1900Tests(unittest.TestCase): 181 """A limitation of the MS C runtime library is that it crashes if 182 a date before 1900 is passed with a format string containing "%y" 183 """ 184 185 def test_y_before_1900(self): 186 # Issue #13674, #19634 187 t = (1899, 1, 1, 0, 0, 0, 0, 0, 0) 188 if (sys.platform == "win32" 189 or sys.platform.startswith(("aix", "sunos", "solaris"))): 190 with self.assertRaises(ValueError): 191 time.strftime("%y", t) 192 else: 193 self.assertEqual(time.strftime("%y", t), "99") 194 195 def test_y_1900(self): 196 self.assertEqual( 197 time.strftime("%y", (1900, 1, 1, 0, 0, 0, 0, 0, 0)), "00") 198 199 def test_y_after_1900(self): 200 self.assertEqual( 201 time.strftime("%y", (2013, 1, 1, 0, 0, 0, 0, 0, 0)), "13") 202 203if __name__ == '__main__': 204 unittest.main() 205