1from test import test_support 2import time 3import unittest 4import sys 5 6 7class TimeTestCase(unittest.TestCase): 8 9 def setUp(self): 10 self.t = time.time() 11 12 def test_data_attributes(self): 13 time.altzone 14 time.daylight 15 time.timezone 16 time.tzname 17 18 def test_clock(self): 19 time.clock() 20 21 def test_conversions(self): 22 self.assertTrue(time.ctime(self.t) 23 == time.asctime(time.localtime(self.t))) 24 self.assertTrue(long(time.mktime(time.localtime(self.t))) 25 == long(self.t)) 26 27 def test_sleep(self): 28 time.sleep(1.2) 29 30 def test_strftime(self): 31 tt = time.gmtime(self.t) 32 for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I', 33 'j', 'm', 'M', 'p', 'S', 34 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'): 35 format = ' %' + directive 36 try: 37 time.strftime(format, tt) 38 except ValueError: 39 self.fail('conversion specifier: %r failed.' % format) 40 41 # Issue #10762: Guard against invalid/non-supported format string 42 # so that Python don't crash (Windows crashes when the format string 43 # input to [w]strftime is not kosher. 44 if sys.platform.startswith('win'): 45 with self.assertRaises(ValueError): 46 time.strftime('%f') 47 48 def test_strftime_bounds_checking(self): 49 # Make sure that strftime() checks the bounds of the various parts 50 #of the time tuple (0 is valid for *all* values). 51 52 # Check year [1900, max(int)] 53 self.assertRaises(ValueError, time.strftime, '', 54 (1899, 1, 1, 0, 0, 0, 0, 1, -1)) 55 if time.accept2dyear: 56 self.assertRaises(ValueError, time.strftime, '', 57 (-1, 1, 1, 0, 0, 0, 0, 1, -1)) 58 self.assertRaises(ValueError, time.strftime, '', 59 (100, 1, 1, 0, 0, 0, 0, 1, -1)) 60 # Check month [1, 12] + zero support 61 self.assertRaises(ValueError, time.strftime, '', 62 (1900, -1, 1, 0, 0, 0, 0, 1, -1)) 63 self.assertRaises(ValueError, time.strftime, '', 64 (1900, 13, 1, 0, 0, 0, 0, 1, -1)) 65 # Check day of month [1, 31] + zero support 66 self.assertRaises(ValueError, time.strftime, '', 67 (1900, 1, -1, 0, 0, 0, 0, 1, -1)) 68 self.assertRaises(ValueError, time.strftime, '', 69 (1900, 1, 32, 0, 0, 0, 0, 1, -1)) 70 # Check hour [0, 23] 71 self.assertRaises(ValueError, time.strftime, '', 72 (1900, 1, 1, -1, 0, 0, 0, 1, -1)) 73 self.assertRaises(ValueError, time.strftime, '', 74 (1900, 1, 1, 24, 0, 0, 0, 1, -1)) 75 # Check minute [0, 59] 76 self.assertRaises(ValueError, time.strftime, '', 77 (1900, 1, 1, 0, -1, 0, 0, 1, -1)) 78 self.assertRaises(ValueError, time.strftime, '', 79 (1900, 1, 1, 0, 60, 0, 0, 1, -1)) 80 # Check second [0, 61] 81 self.assertRaises(ValueError, time.strftime, '', 82 (1900, 1, 1, 0, 0, -1, 0, 1, -1)) 83 # C99 only requires allowing for one leap second, but Python's docs say 84 # allow two leap seconds (0..61) 85 self.assertRaises(ValueError, time.strftime, '', 86 (1900, 1, 1, 0, 0, 62, 0, 1, -1)) 87 # No check for upper-bound day of week; 88 # value forced into range by a ``% 7`` calculation. 89 # Start check at -2 since gettmarg() increments value before taking 90 # modulo. 91 self.assertRaises(ValueError, time.strftime, '', 92 (1900, 1, 1, 0, 0, 0, -2, 1, -1)) 93 # Check day of the year [1, 366] + zero support 94 self.assertRaises(ValueError, time.strftime, '', 95 (1900, 1, 1, 0, 0, 0, 0, -1, -1)) 96 self.assertRaises(ValueError, time.strftime, '', 97 (1900, 1, 1, 0, 0, 0, 0, 367, -1)) 98 99 def test_default_values_for_zero(self): 100 # Make sure that using all zeros uses the proper default values. 101 # No test for daylight savings since strftime() does not change output 102 # based on its value. 103 expected = "2000 01 01 00 00 00 1 001" 104 result = time.strftime("%Y %m %d %H %M %S %w %j", (0,)*9) 105 self.assertEqual(expected, result) 106 107 def test_strptime(self): 108 # Should be able to go round-trip from strftime to strptime without 109 # raising an exception. 110 tt = time.gmtime(self.t) 111 for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I', 112 'j', 'm', 'M', 'p', 'S', 113 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'): 114 format = '%' + directive 115 strf_output = time.strftime(format, tt) 116 try: 117 time.strptime(strf_output, format) 118 except ValueError: 119 self.fail("conversion specifier %r failed with '%s' input." % 120 (format, strf_output)) 121 122 def test_asctime(self): 123 time.asctime(time.gmtime(self.t)) 124 self.assertRaises(TypeError, time.asctime, 0) 125 self.assertRaises(TypeError, time.asctime, ()) 126 # XXX: Posix compiant asctime should refuse to convert 127 # year > 9999, but Linux implementation does not. 128 # self.assertRaises(ValueError, time.asctime, 129 # (12345, 1, 0, 0, 0, 0, 0, 0, 0)) 130 # XXX: For now, just make sure we don't have a crash: 131 try: 132 time.asctime((12345, 1, 1, 0, 0, 0, 0, 1, 0)) 133 except ValueError: 134 pass 135 136 @unittest.skipIf(not hasattr(time, "tzset"), 137 "time module has no attribute tzset") 138 def test_tzset(self): 139 140 from os import environ 141 142 # Epoch time of midnight Dec 25th 2002. Never DST in northern 143 # hemisphere. 144 xmas2002 = 1040774400.0 145 146 # These formats are correct for 2002, and possibly future years 147 # This format is the 'standard' as documented at: 148 # http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap08.html 149 # They are also documented in the tzset(3) man page on most Unix 150 # systems. 151 eastern = 'EST+05EDT,M4.1.0,M10.5.0' 152 victoria = 'AEST-10AEDT-11,M10.5.0,M3.5.0' 153 utc='UTC+0' 154 155 org_TZ = environ.get('TZ',None) 156 try: 157 # Make sure we can switch to UTC time and results are correct 158 # Note that unknown timezones default to UTC. 159 # Note that altzone is undefined in UTC, as there is no DST 160 environ['TZ'] = eastern 161 time.tzset() 162 environ['TZ'] = utc 163 time.tzset() 164 self.assertEqual( 165 time.gmtime(xmas2002), time.localtime(xmas2002) 166 ) 167 self.assertEqual(time.daylight, 0) 168 self.assertEqual(time.timezone, 0) 169 self.assertEqual(time.localtime(xmas2002).tm_isdst, 0) 170 171 # Make sure we can switch to US/Eastern 172 environ['TZ'] = eastern 173 time.tzset() 174 self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002)) 175 self.assertEqual(time.tzname, ('EST', 'EDT')) 176 self.assertEqual(len(time.tzname), 2) 177 self.assertEqual(time.daylight, 1) 178 self.assertEqual(time.timezone, 18000) 179 self.assertEqual(time.altzone, 14400) 180 self.assertEqual(time.localtime(xmas2002).tm_isdst, 0) 181 self.assertEqual(len(time.tzname), 2) 182 183 # Now go to the southern hemisphere. 184 environ['TZ'] = victoria 185 time.tzset() 186 self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002)) 187 188 # Issue #11886: Australian Eastern Standard Time (UTC+10) is called 189 # "EST" (as Eastern Standard Time, UTC-5) instead of "AEST" on some 190 # operating systems (e.g. FreeBSD), which is wrong. See for example 191 # this bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=93810 192 self.assertIn(time.tzname[0], ('AEST' 'EST'), time.tzname[0]) 193 self.assertTrue(time.tzname[1] == 'AEDT', str(time.tzname[1])) 194 self.assertEqual(len(time.tzname), 2) 195 self.assertEqual(time.daylight, 1) 196 self.assertEqual(time.timezone, -36000) 197 self.assertEqual(time.altzone, -39600) 198 self.assertEqual(time.localtime(xmas2002).tm_isdst, 1) 199 200 finally: 201 # Repair TZ environment variable in case any other tests 202 # rely on it. 203 if org_TZ is not None: 204 environ['TZ'] = org_TZ 205 elif environ.has_key('TZ'): 206 del environ['TZ'] 207 time.tzset() 208 209 def test_insane_timestamps(self): 210 # It's possible that some platform maps time_t to double, 211 # and that this test will fail there. This test should 212 # exempt such platforms (provided they return reasonable 213 # results!). 214 for func in time.ctime, time.gmtime, time.localtime: 215 for unreasonable in -1e200, 1e200: 216 self.assertRaises(ValueError, func, unreasonable) 217 218 def test_ctime_without_arg(self): 219 # Not sure how to check the values, since the clock could tick 220 # at any time. Make sure these are at least accepted and 221 # don't raise errors. 222 time.ctime() 223 time.ctime(None) 224 225 def test_gmtime_without_arg(self): 226 gt0 = time.gmtime() 227 gt1 = time.gmtime(None) 228 t0 = time.mktime(gt0) 229 t1 = time.mktime(gt1) 230 self.assertTrue(0 <= (t1-t0) < 0.2) 231 232 def test_localtime_without_arg(self): 233 lt0 = time.localtime() 234 lt1 = time.localtime(None) 235 t0 = time.mktime(lt0) 236 t1 = time.mktime(lt1) 237 self.assertTrue(0 <= (t1-t0) < 0.2) 238 239 def test_mktime(self): 240 # Issue #1726687 241 for t in (-2, -1, 0, 1): 242 try: 243 tt = time.localtime(t) 244 except (OverflowError, ValueError): 245 pass 246 else: 247 self.assertEqual(time.mktime(tt), t) 248 249 250def test_main(): 251 test_support.run_unittest(TimeTestCase) 252 253 254if __name__ == "__main__": 255 test_main() 256