1"""PyUnit testing against strptime""" 2 3import unittest 4import time 5import locale 6import re 7import os 8import sys 9from test import support 10from test.support import skip_if_buggy_ucrt_strfptime 11from datetime import date as datetime_date 12 13import _strptime 14 15class getlang_Tests(unittest.TestCase): 16 """Test _getlang""" 17 def test_basic(self): 18 self.assertEqual(_strptime._getlang(), locale.getlocale(locale.LC_TIME)) 19 20class LocaleTime_Tests(unittest.TestCase): 21 """Tests for _strptime.LocaleTime. 22 23 All values are lower-cased when stored in LocaleTime, so make sure to 24 compare values after running ``lower`` on them. 25 26 """ 27 28 def setUp(self): 29 """Create time tuple based on current time.""" 30 self.time_tuple = time.localtime() 31 self.LT_ins = _strptime.LocaleTime() 32 33 def compare_against_time(self, testing, directive, tuple_position, 34 error_msg): 35 """Helper method that tests testing against directive based on the 36 tuple_position of time_tuple. Uses error_msg as error message. 37 38 """ 39 strftime_output = time.strftime(directive, self.time_tuple).lower() 40 comparison = testing[self.time_tuple[tuple_position]] 41 self.assertIn(strftime_output, testing, 42 "%s: not found in tuple" % error_msg) 43 self.assertEqual(comparison, strftime_output, 44 "%s: position within tuple incorrect; %s != %s" % 45 (error_msg, comparison, strftime_output)) 46 47 def test_weekday(self): 48 # Make sure that full and abbreviated weekday names are correct in 49 # both string and position with tuple 50 self.compare_against_time(self.LT_ins.f_weekday, '%A', 6, 51 "Testing of full weekday name failed") 52 self.compare_against_time(self.LT_ins.a_weekday, '%a', 6, 53 "Testing of abbreviated weekday name failed") 54 55 def test_month(self): 56 # Test full and abbreviated month names; both string and position 57 # within the tuple 58 self.compare_against_time(self.LT_ins.f_month, '%B', 1, 59 "Testing against full month name failed") 60 self.compare_against_time(self.LT_ins.a_month, '%b', 1, 61 "Testing against abbreviated month name failed") 62 63 def test_am_pm(self): 64 # Make sure AM/PM representation done properly 65 strftime_output = time.strftime("%p", self.time_tuple).lower() 66 self.assertIn(strftime_output, self.LT_ins.am_pm, 67 "AM/PM representation not in tuple") 68 if self.time_tuple[3] < 12: position = 0 69 else: position = 1 70 self.assertEqual(self.LT_ins.am_pm[position], strftime_output, 71 "AM/PM representation in the wrong position within the tuple") 72 73 @unittest.skipIf( 74 support.is_emscripten, "musl libc issue on Emscripten, bpo-46390" 75 ) 76 def test_timezone(self): 77 # Make sure timezone is correct 78 timezone = time.strftime("%Z", self.time_tuple).lower() 79 if timezone: 80 self.assertTrue(timezone in self.LT_ins.timezone[0] or 81 timezone in self.LT_ins.timezone[1], 82 "timezone %s not found in %s" % 83 (timezone, self.LT_ins.timezone)) 84 85 def test_date_time(self): 86 # Check that LC_date_time, LC_date, and LC_time are correct 87 # the magic date is used so as to not have issues with %c when day of 88 # the month is a single digit and has a leading space. This is not an 89 # issue since strptime still parses it correctly. The problem is 90 # testing these directives for correctness by comparing strftime 91 # output. 92 magic_date = (1999, 3, 17, 22, 44, 55, 2, 76, 0) 93 strftime_output = time.strftime("%c", magic_date) 94 self.assertEqual(time.strftime(self.LT_ins.LC_date_time, magic_date), 95 strftime_output, "LC_date_time incorrect") 96 strftime_output = time.strftime("%x", magic_date) 97 self.assertEqual(time.strftime(self.LT_ins.LC_date, magic_date), 98 strftime_output, "LC_date incorrect") 99 strftime_output = time.strftime("%X", magic_date) 100 self.assertEqual(time.strftime(self.LT_ins.LC_time, magic_date), 101 strftime_output, "LC_time incorrect") 102 LT = _strptime.LocaleTime() 103 LT.am_pm = ('', '') 104 self.assertTrue(LT.LC_time, "LocaleTime's LC directives cannot handle " 105 "empty strings") 106 107 def test_lang(self): 108 # Make sure lang is set to what _getlang() returns 109 # Assuming locale has not changed between now and when self.LT_ins was created 110 self.assertEqual(self.LT_ins.lang, _strptime._getlang()) 111 112 113class TimeRETests(unittest.TestCase): 114 """Tests for TimeRE.""" 115 116 def setUp(self): 117 """Construct generic TimeRE object.""" 118 self.time_re = _strptime.TimeRE() 119 self.locale_time = _strptime.LocaleTime() 120 121 def test_pattern(self): 122 # Test TimeRE.pattern 123 pattern_string = self.time_re.pattern(r"%a %A %d") 124 self.assertTrue(pattern_string.find(self.locale_time.a_weekday[2]) != -1, 125 "did not find abbreviated weekday in pattern string '%s'" % 126 pattern_string) 127 self.assertTrue(pattern_string.find(self.locale_time.f_weekday[4]) != -1, 128 "did not find full weekday in pattern string '%s'" % 129 pattern_string) 130 self.assertTrue(pattern_string.find(self.time_re['d']) != -1, 131 "did not find 'd' directive pattern string '%s'" % 132 pattern_string) 133 134 def test_pattern_escaping(self): 135 # Make sure any characters in the format string that might be taken as 136 # regex syntax is escaped. 137 pattern_string = self.time_re.pattern(r"\d+") 138 self.assertIn(r"\\d\+", pattern_string, 139 "%s does not have re characters escaped properly" % 140 pattern_string) 141 142 @skip_if_buggy_ucrt_strfptime 143 def test_compile(self): 144 # Check that compiled regex is correct 145 found = self.time_re.compile(r"%A").match(self.locale_time.f_weekday[6]) 146 self.assertTrue(found and found.group('A') == self.locale_time.f_weekday[6], 147 "re object for '%A' failed") 148 compiled = self.time_re.compile(r"%a %b") 149 found = compiled.match("%s %s" % (self.locale_time.a_weekday[4], 150 self.locale_time.a_month[4])) 151 self.assertTrue(found, 152 "Match failed with '%s' regex and '%s' string" % 153 (compiled.pattern, "%s %s" % (self.locale_time.a_weekday[4], 154 self.locale_time.a_month[4]))) 155 self.assertTrue(found.group('a') == self.locale_time.a_weekday[4] and 156 found.group('b') == self.locale_time.a_month[4], 157 "re object couldn't find the abbreviated weekday month in " 158 "'%s' using '%s'; group 'a' = '%s', group 'b' = %s'" % 159 (found.string, found.re.pattern, found.group('a'), 160 found.group('b'))) 161 for directive in ('a','A','b','B','c','d','G','H','I','j','m','M','p', 162 'S','u','U','V','w','W','x','X','y','Y','Z','%'): 163 compiled = self.time_re.compile("%" + directive) 164 found = compiled.match(time.strftime("%" + directive)) 165 self.assertTrue(found, "Matching failed on '%s' using '%s' regex" % 166 (time.strftime("%" + directive), 167 compiled.pattern)) 168 169 def test_blankpattern(self): 170 # Make sure when tuple or something has no values no regex is generated. 171 # Fixes bug #661354 172 test_locale = _strptime.LocaleTime() 173 test_locale.timezone = (frozenset(), frozenset()) 174 self.assertEqual(_strptime.TimeRE(test_locale).pattern("%Z"), '', 175 "with timezone == ('',''), TimeRE().pattern('%Z') != ''") 176 177 def test_matching_with_escapes(self): 178 # Make sure a format that requires escaping of characters works 179 compiled_re = self.time_re.compile(r"\w+ %m") 180 found = compiled_re.match(r"\w+ 10") 181 self.assertTrue(found, r"Escaping failed of format '\w+ 10'") 182 183 def test_locale_data_w_regex_metacharacters(self): 184 # Check that if locale data contains regex metacharacters they are 185 # escaped properly. 186 # Discovered by bug #1039270 . 187 locale_time = _strptime.LocaleTime() 188 locale_time.timezone = (frozenset(("utc", "gmt", 189 "Tokyo (standard time)")), 190 frozenset("Tokyo (daylight time)")) 191 time_re = _strptime.TimeRE(locale_time) 192 self.assertTrue(time_re.compile("%Z").match("Tokyo (standard time)"), 193 "locale data that contains regex metacharacters is not" 194 " properly escaped") 195 196 def test_whitespace_substitution(self): 197 # When pattern contains whitespace, make sure it is taken into account 198 # so as to not allow subpatterns to end up next to each other and 199 # "steal" characters from each other. 200 pattern = self.time_re.pattern('%j %H') 201 self.assertFalse(re.match(pattern, "180")) 202 self.assertTrue(re.match(pattern, "18 0")) 203 204 205class StrptimeTests(unittest.TestCase): 206 """Tests for _strptime.strptime.""" 207 208 def setUp(self): 209 """Create testing time tuple.""" 210 self.time_tuple = time.gmtime() 211 212 def test_ValueError(self): 213 # Make sure ValueError is raised when match fails or format is bad 214 self.assertRaises(ValueError, _strptime._strptime_time, data_string="%d", 215 format="%A") 216 for bad_format in ("%", "% ", "%e"): 217 try: 218 _strptime._strptime_time("2005", bad_format) 219 except ValueError: 220 continue 221 except Exception as err: 222 self.fail("'%s' raised %s, not ValueError" % 223 (bad_format, err.__class__.__name__)) 224 else: 225 self.fail("'%s' did not raise ValueError" % bad_format) 226 227 # Ambiguous or incomplete cases using ISO year/week/weekday directives 228 # 1. ISO week (%V) is specified, but the year is specified with %Y 229 # instead of %G 230 with self.assertRaises(ValueError): 231 _strptime._strptime("1999 50", "%Y %V") 232 # 2. ISO year (%G) and ISO week (%V) are specified, but weekday is not 233 with self.assertRaises(ValueError): 234 _strptime._strptime("1999 51", "%G %V") 235 # 3. ISO year (%G) and weekday are specified, but ISO week (%V) is not 236 for w in ('A', 'a', 'w', 'u'): 237 with self.assertRaises(ValueError): 238 _strptime._strptime("1999 51","%G %{}".format(w)) 239 # 4. ISO year is specified alone (e.g. time.strptime('2015', '%G')) 240 with self.assertRaises(ValueError): 241 _strptime._strptime("2015", "%G") 242 # 5. Julian/ordinal day (%j) is specified with %G, but not %Y 243 with self.assertRaises(ValueError): 244 _strptime._strptime("1999 256", "%G %j") 245 246 247 def test_strptime_exception_context(self): 248 # check that this doesn't chain exceptions needlessly (see #17572) 249 with self.assertRaises(ValueError) as e: 250 _strptime._strptime_time('', '%D') 251 self.assertIs(e.exception.__suppress_context__, True) 252 # additional check for IndexError branch (issue #19545) 253 with self.assertRaises(ValueError) as e: 254 _strptime._strptime_time('19', '%Y %') 255 self.assertIs(e.exception.__suppress_context__, True) 256 257 def test_unconverteddata(self): 258 # Check ValueError is raised when there is unconverted data 259 self.assertRaises(ValueError, _strptime._strptime_time, "10 12", "%m") 260 261 def helper(self, directive, position): 262 """Helper fxn in testing.""" 263 strf_output = time.strftime("%" + directive, self.time_tuple) 264 strp_output = _strptime._strptime_time(strf_output, "%" + directive) 265 self.assertTrue(strp_output[position] == self.time_tuple[position], 266 "testing of '%s' directive failed; '%s' -> %s != %s" % 267 (directive, strf_output, strp_output[position], 268 self.time_tuple[position])) 269 270 def test_year(self): 271 # Test that the year is handled properly 272 for directive in ('y', 'Y'): 273 self.helper(directive, 0) 274 # Must also make sure %y values are correct for bounds set by Open Group 275 for century, bounds in ((1900, ('69', '99')), (2000, ('00', '68'))): 276 for bound in bounds: 277 strp_output = _strptime._strptime_time(bound, '%y') 278 expected_result = century + int(bound) 279 self.assertTrue(strp_output[0] == expected_result, 280 "'y' test failed; passed in '%s' " 281 "and returned '%s'" % (bound, strp_output[0])) 282 283 def test_month(self): 284 # Test for month directives 285 for directive in ('B', 'b', 'm'): 286 self.helper(directive, 1) 287 288 def test_day(self): 289 # Test for day directives 290 self.helper('d', 2) 291 292 def test_hour(self): 293 # Test hour directives 294 self.helper('H', 3) 295 strf_output = time.strftime("%I %p", self.time_tuple) 296 strp_output = _strptime._strptime_time(strf_output, "%I %p") 297 self.assertTrue(strp_output[3] == self.time_tuple[3], 298 "testing of '%%I %%p' directive failed; '%s' -> %s != %s" % 299 (strf_output, strp_output[3], self.time_tuple[3])) 300 301 def test_minute(self): 302 # Test minute directives 303 self.helper('M', 4) 304 305 def test_second(self): 306 # Test second directives 307 self.helper('S', 5) 308 309 def test_fraction(self): 310 # Test microseconds 311 import datetime 312 d = datetime.datetime(2012, 12, 20, 12, 34, 56, 78987) 313 tup, frac, _ = _strptime._strptime(str(d), format="%Y-%m-%d %H:%M:%S.%f") 314 self.assertEqual(frac, d.microsecond) 315 316 def test_weekday(self): 317 # Test weekday directives 318 for directive in ('A', 'a', 'w', 'u'): 319 self.helper(directive,6) 320 321 def test_julian(self): 322 # Test julian directives 323 self.helper('j', 7) 324 325 def test_offset(self): 326 one_hour = 60 * 60 327 half_hour = 30 * 60 328 half_minute = 30 329 (*_, offset), _, offset_fraction = _strptime._strptime("+0130", "%z") 330 self.assertEqual(offset, one_hour + half_hour) 331 self.assertEqual(offset_fraction, 0) 332 (*_, offset), _, offset_fraction = _strptime._strptime("-0100", "%z") 333 self.assertEqual(offset, -one_hour) 334 self.assertEqual(offset_fraction, 0) 335 (*_, offset), _, offset_fraction = _strptime._strptime("-013030", "%z") 336 self.assertEqual(offset, -(one_hour + half_hour + half_minute)) 337 self.assertEqual(offset_fraction, 0) 338 (*_, offset), _, offset_fraction = _strptime._strptime("-013030.000001", "%z") 339 self.assertEqual(offset, -(one_hour + half_hour + half_minute)) 340 self.assertEqual(offset_fraction, -1) 341 (*_, offset), _, offset_fraction = _strptime._strptime("+01:00", "%z") 342 self.assertEqual(offset, one_hour) 343 self.assertEqual(offset_fraction, 0) 344 (*_, offset), _, offset_fraction = _strptime._strptime("-01:30", "%z") 345 self.assertEqual(offset, -(one_hour + half_hour)) 346 self.assertEqual(offset_fraction, 0) 347 (*_, offset), _, offset_fraction = _strptime._strptime("-01:30:30", "%z") 348 self.assertEqual(offset, -(one_hour + half_hour + half_minute)) 349 self.assertEqual(offset_fraction, 0) 350 (*_, offset), _, offset_fraction = _strptime._strptime("-01:30:30.000001", "%z") 351 self.assertEqual(offset, -(one_hour + half_hour + half_minute)) 352 self.assertEqual(offset_fraction, -1) 353 (*_, offset), _, offset_fraction = _strptime._strptime("+01:30:30.001", "%z") 354 self.assertEqual(offset, one_hour + half_hour + half_minute) 355 self.assertEqual(offset_fraction, 1000) 356 (*_, offset), _, offset_fraction = _strptime._strptime("Z", "%z") 357 self.assertEqual(offset, 0) 358 self.assertEqual(offset_fraction, 0) 359 360 def test_bad_offset(self): 361 with self.assertRaises(ValueError): 362 _strptime._strptime("-01:30:30.", "%z") 363 with self.assertRaises(ValueError): 364 _strptime._strptime("-0130:30", "%z") 365 with self.assertRaises(ValueError): 366 _strptime._strptime("-01:30:30.1234567", "%z") 367 with self.assertRaises(ValueError): 368 _strptime._strptime("-01:30:30:123456", "%z") 369 with self.assertRaises(ValueError) as err: 370 _strptime._strptime("-01:3030", "%z") 371 self.assertEqual("Inconsistent use of : in -01:3030", str(err.exception)) 372 373 @skip_if_buggy_ucrt_strfptime 374 @unittest.skipIf( 375 support.is_emscripten, "musl libc issue on Emscripten, bpo-46390" 376 ) 377 def test_timezone(self): 378 # Test timezone directives. 379 # When gmtime() is used with %Z, entire result of strftime() is empty. 380 # Check for equal timezone names deals with bad locale info when this 381 # occurs; first found in FreeBSD 4.4. 382 strp_output = _strptime._strptime_time("UTC", "%Z") 383 self.assertEqual(strp_output.tm_isdst, 0) 384 strp_output = _strptime._strptime_time("GMT", "%Z") 385 self.assertEqual(strp_output.tm_isdst, 0) 386 time_tuple = time.localtime() 387 strf_output = time.strftime("%Z") #UTC does not have a timezone 388 strp_output = _strptime._strptime_time(strf_output, "%Z") 389 locale_time = _strptime.LocaleTime() 390 if time.tzname[0] != time.tzname[1] or not time.daylight: 391 self.assertTrue(strp_output[8] == time_tuple[8], 392 "timezone check failed; '%s' -> %s != %s" % 393 (strf_output, strp_output[8], time_tuple[8])) 394 else: 395 self.assertTrue(strp_output[8] == -1, 396 "LocaleTime().timezone has duplicate values and " 397 "time.daylight but timezone value not set to -1") 398 399 @unittest.skipUnless( 400 hasattr(time, "tzset"), "time module has no attribute tzset" 401 ) 402 def test_bad_timezone(self): 403 # Explicitly test possibility of bad timezone; 404 # when time.tzname[0] == time.tzname[1] and time.daylight 405 tz_name = time.tzname[0] 406 if tz_name.upper() in ("UTC", "GMT"): 407 self.skipTest('need non-UTC/GMT timezone') 408 409 with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \ 410 support.swap_attr(time, 'daylight', 1), \ 411 support.swap_attr(time, 'tzset', lambda: None): 412 time.tzname = (tz_name, tz_name) 413 time.daylight = 1 414 tz_value = _strptime._strptime_time(tz_name, "%Z")[8] 415 self.assertEqual(tz_value, -1, 416 "%s lead to a timezone value of %s instead of -1 when " 417 "time.daylight set to %s and passing in %s" % 418 (time.tzname, tz_value, time.daylight, tz_name)) 419 420 def test_date_time(self): 421 # Test %c directive 422 for position in range(6): 423 self.helper('c', position) 424 425 def test_date(self): 426 # Test %x directive 427 for position in range(0,3): 428 self.helper('x', position) 429 430 def test_time(self): 431 # Test %X directive 432 for position in range(3,6): 433 self.helper('X', position) 434 435 def test_percent(self): 436 # Make sure % signs are handled properly 437 strf_output = time.strftime("%m %% %Y", self.time_tuple) 438 strp_output = _strptime._strptime_time(strf_output, "%m %% %Y") 439 self.assertTrue(strp_output[0] == self.time_tuple[0] and 440 strp_output[1] == self.time_tuple[1], 441 "handling of percent sign failed") 442 443 def test_caseinsensitive(self): 444 # Should handle names case-insensitively. 445 strf_output = time.strftime("%B", self.time_tuple) 446 self.assertTrue(_strptime._strptime_time(strf_output.upper(), "%B"), 447 "strptime does not handle ALL-CAPS names properly") 448 self.assertTrue(_strptime._strptime_time(strf_output.lower(), "%B"), 449 "strptime does not handle lowercase names properly") 450 self.assertTrue(_strptime._strptime_time(strf_output.capitalize(), "%B"), 451 "strptime does not handle capword names properly") 452 453 def test_defaults(self): 454 # Default return value should be (1900, 1, 1, 0, 0, 0, 0, 1, 0) 455 defaults = (1900, 1, 1, 0, 0, 0, 0, 1, -1) 456 strp_output = _strptime._strptime_time('1', '%m') 457 self.assertTrue(strp_output == defaults, 458 "Default values for strptime() are incorrect;" 459 " %s != %s" % (strp_output, defaults)) 460 461 def test_escaping(self): 462 # Make sure all characters that have regex significance are escaped. 463 # Parentheses are in a purposeful order; will cause an error of 464 # unbalanced parentheses when the regex is compiled if they are not 465 # escaped. 466 # Test instigated by bug #796149 . 467 need_escaping = r".^$*+?{}\[]|)(" 468 self.assertTrue(_strptime._strptime_time(need_escaping, need_escaping)) 469 470 def test_feb29_on_leap_year_without_year(self): 471 time.strptime("Feb 29", "%b %d") 472 473 def test_mar1_comes_after_feb29_even_when_omitting_the_year(self): 474 self.assertLess( 475 time.strptime("Feb 29", "%b %d"), 476 time.strptime("Mar 1", "%b %d")) 477 478class Strptime12AMPMTests(unittest.TestCase): 479 """Test a _strptime regression in '%I %p' at 12 noon (12 PM)""" 480 481 def test_twelve_noon_midnight(self): 482 eq = self.assertEqual 483 eq(time.strptime('12 PM', '%I %p')[3], 12) 484 eq(time.strptime('12 AM', '%I %p')[3], 0) 485 eq(_strptime._strptime_time('12 PM', '%I %p')[3], 12) 486 eq(_strptime._strptime_time('12 AM', '%I %p')[3], 0) 487 488 489class JulianTests(unittest.TestCase): 490 """Test a _strptime regression that all julian (1-366) are accepted""" 491 492 def test_all_julian_days(self): 493 eq = self.assertEqual 494 for i in range(1, 367): 495 # use 2004, since it is a leap year, we have 366 days 496 eq(_strptime._strptime_time('%d 2004' % i, '%j %Y')[7], i) 497 498class CalculationTests(unittest.TestCase): 499 """Test that strptime() fills in missing info correctly""" 500 501 def setUp(self): 502 self.time_tuple = time.gmtime() 503 504 @skip_if_buggy_ucrt_strfptime 505 def test_julian_calculation(self): 506 # Make sure that when Julian is missing that it is calculated 507 format_string = "%Y %m %d %H %M %S %w %Z" 508 result = _strptime._strptime_time(time.strftime(format_string, self.time_tuple), 509 format_string) 510 self.assertTrue(result.tm_yday == self.time_tuple.tm_yday, 511 "Calculation of tm_yday failed; %s != %s" % 512 (result.tm_yday, self.time_tuple.tm_yday)) 513 514 @skip_if_buggy_ucrt_strfptime 515 def test_gregorian_calculation(self): 516 # Test that Gregorian date can be calculated from Julian day 517 format_string = "%Y %H %M %S %w %j %Z" 518 result = _strptime._strptime_time(time.strftime(format_string, self.time_tuple), 519 format_string) 520 self.assertTrue(result.tm_year == self.time_tuple.tm_year and 521 result.tm_mon == self.time_tuple.tm_mon and 522 result.tm_mday == self.time_tuple.tm_mday, 523 "Calculation of Gregorian date failed; " 524 "%s-%s-%s != %s-%s-%s" % 525 (result.tm_year, result.tm_mon, result.tm_mday, 526 self.time_tuple.tm_year, self.time_tuple.tm_mon, 527 self.time_tuple.tm_mday)) 528 529 @skip_if_buggy_ucrt_strfptime 530 def test_day_of_week_calculation(self): 531 # Test that the day of the week is calculated as needed 532 format_string = "%Y %m %d %H %S %j %Z" 533 result = _strptime._strptime_time(time.strftime(format_string, self.time_tuple), 534 format_string) 535 self.assertTrue(result.tm_wday == self.time_tuple.tm_wday, 536 "Calculation of day of the week failed; " 537 "%s != %s" % (result.tm_wday, self.time_tuple.tm_wday)) 538 539 if support.is_android: 540 # Issue #26929: strftime() on Android incorrectly formats %V or %G for 541 # the last or the first incomplete week in a year. 542 _ymd_excluded = ((1905, 1, 1), (1906, 12, 31), (2008, 12, 29), 543 (1917, 12, 31)) 544 _formats_excluded = ('%G %V',) 545 else: 546 _ymd_excluded = () 547 _formats_excluded = () 548 549 @unittest.skipIf(sys.platform.startswith('aix'), 550 'bpo-29972: broken test on AIX') 551 def test_week_of_year_and_day_of_week_calculation(self): 552 # Should be able to infer date if given year, week of year (%U or %W) 553 # and day of the week 554 def test_helper(ymd_tuple, test_reason): 555 for year_week_format in ('%Y %W', '%Y %U', '%G %V'): 556 if (year_week_format in self._formats_excluded and 557 ymd_tuple in self._ymd_excluded): 558 return 559 for weekday_format in ('%w', '%u', '%a', '%A'): 560 format_string = year_week_format + ' ' + weekday_format 561 with self.subTest(test_reason, 562 date=ymd_tuple, 563 format=format_string): 564 dt_date = datetime_date(*ymd_tuple) 565 strp_input = dt_date.strftime(format_string) 566 strp_output = _strptime._strptime_time(strp_input, 567 format_string) 568 msg = "%r: %s != %s" % (strp_input, 569 strp_output[7], 570 dt_date.timetuple()[7]) 571 self.assertEqual(strp_output[:3], ymd_tuple, msg) 572 test_helper((1901, 1, 3), "week 0") 573 test_helper((1901, 1, 8), "common case") 574 test_helper((1901, 1, 13), "day on Sunday") 575 test_helper((1901, 1, 14), "day on Monday") 576 test_helper((1905, 1, 1), "Jan 1 on Sunday") 577 test_helper((1906, 1, 1), "Jan 1 on Monday") 578 test_helper((1906, 1, 7), "first Sunday in a year starting on Monday") 579 test_helper((1905, 12, 31), "Dec 31 on Sunday") 580 test_helper((1906, 12, 31), "Dec 31 on Monday") 581 test_helper((2008, 12, 29), "Monday in the last week of the year") 582 test_helper((2008, 12, 22), "Monday in the second-to-last week of the " 583 "year") 584 test_helper((1978, 10, 23), "randomly chosen date") 585 test_helper((2004, 12, 18), "randomly chosen date") 586 test_helper((1978, 10, 23), "year starting and ending on Monday while " 587 "date not on Sunday or Monday") 588 test_helper((1917, 12, 17), "year starting and ending on Monday with " 589 "a Monday not at the beginning or end " 590 "of the year") 591 test_helper((1917, 12, 31), "Dec 31 on Monday with year starting and " 592 "ending on Monday") 593 test_helper((2007, 1, 7), "First Sunday of 2007") 594 test_helper((2007, 1, 14), "Second Sunday of 2007") 595 test_helper((2006, 12, 31), "Last Sunday of 2006") 596 test_helper((2006, 12, 24), "Second to last Sunday of 2006") 597 598 def test_week_0(self): 599 def check(value, format, *expected): 600 self.assertEqual(_strptime._strptime_time(value, format)[:-1], expected) 601 check('2015 0 0', '%Y %U %w', 2014, 12, 28, 0, 0, 0, 6, 362) 602 check('2015 0 0', '%Y %W %w', 2015, 1, 4, 0, 0, 0, 6, 4) 603 check('2015 1 1', '%G %V %u', 2014, 12, 29, 0, 0, 0, 0, 363) 604 check('2015 0 1', '%Y %U %w', 2014, 12, 29, 0, 0, 0, 0, 363) 605 check('2015 0 1', '%Y %W %w', 2014, 12, 29, 0, 0, 0, 0, 363) 606 check('2015 1 2', '%G %V %u', 2014, 12, 30, 0, 0, 0, 1, 364) 607 check('2015 0 2', '%Y %U %w', 2014, 12, 30, 0, 0, 0, 1, 364) 608 check('2015 0 2', '%Y %W %w', 2014, 12, 30, 0, 0, 0, 1, 364) 609 check('2015 1 3', '%G %V %u', 2014, 12, 31, 0, 0, 0, 2, 365) 610 check('2015 0 3', '%Y %U %w', 2014, 12, 31, 0, 0, 0, 2, 365) 611 check('2015 0 3', '%Y %W %w', 2014, 12, 31, 0, 0, 0, 2, 365) 612 check('2015 1 4', '%G %V %u', 2015, 1, 1, 0, 0, 0, 3, 1) 613 check('2015 0 4', '%Y %U %w', 2015, 1, 1, 0, 0, 0, 3, 1) 614 check('2015 0 4', '%Y %W %w', 2015, 1, 1, 0, 0, 0, 3, 1) 615 check('2015 1 5', '%G %V %u', 2015, 1, 2, 0, 0, 0, 4, 2) 616 check('2015 0 5', '%Y %U %w', 2015, 1, 2, 0, 0, 0, 4, 2) 617 check('2015 0 5', '%Y %W %w', 2015, 1, 2, 0, 0, 0, 4, 2) 618 check('2015 1 6', '%G %V %u', 2015, 1, 3, 0, 0, 0, 5, 3) 619 check('2015 0 6', '%Y %U %w', 2015, 1, 3, 0, 0, 0, 5, 3) 620 check('2015 0 6', '%Y %W %w', 2015, 1, 3, 0, 0, 0, 5, 3) 621 check('2015 1 7', '%G %V %u', 2015, 1, 4, 0, 0, 0, 6, 4) 622 623 check('2009 0 0', '%Y %U %w', 2008, 12, 28, 0, 0, 0, 6, 363) 624 check('2009 0 0', '%Y %W %w', 2009, 1, 4, 0, 0, 0, 6, 4) 625 check('2009 1 1', '%G %V %u', 2008, 12, 29, 0, 0, 0, 0, 364) 626 check('2009 0 1', '%Y %U %w', 2008, 12, 29, 0, 0, 0, 0, 364) 627 check('2009 0 1', '%Y %W %w', 2008, 12, 29, 0, 0, 0, 0, 364) 628 check('2009 1 2', '%G %V %u', 2008, 12, 30, 0, 0, 0, 1, 365) 629 check('2009 0 2', '%Y %U %w', 2008, 12, 30, 0, 0, 0, 1, 365) 630 check('2009 0 2', '%Y %W %w', 2008, 12, 30, 0, 0, 0, 1, 365) 631 check('2009 1 3', '%G %V %u', 2008, 12, 31, 0, 0, 0, 2, 366) 632 check('2009 0 3', '%Y %U %w', 2008, 12, 31, 0, 0, 0, 2, 366) 633 check('2009 0 3', '%Y %W %w', 2008, 12, 31, 0, 0, 0, 2, 366) 634 check('2009 1 4', '%G %V %u', 2009, 1, 1, 0, 0, 0, 3, 1) 635 check('2009 0 4', '%Y %U %w', 2009, 1, 1, 0, 0, 0, 3, 1) 636 check('2009 0 4', '%Y %W %w', 2009, 1, 1, 0, 0, 0, 3, 1) 637 check('2009 1 5', '%G %V %u', 2009, 1, 2, 0, 0, 0, 4, 2) 638 check('2009 0 5', '%Y %U %w', 2009, 1, 2, 0, 0, 0, 4, 2) 639 check('2009 0 5', '%Y %W %w', 2009, 1, 2, 0, 0, 0, 4, 2) 640 check('2009 1 6', '%G %V %u', 2009, 1, 3, 0, 0, 0, 5, 3) 641 check('2009 0 6', '%Y %U %w', 2009, 1, 3, 0, 0, 0, 5, 3) 642 check('2009 0 6', '%Y %W %w', 2009, 1, 3, 0, 0, 0, 5, 3) 643 check('2009 1 7', '%G %V %u', 2009, 1, 4, 0, 0, 0, 6, 4) 644 645 646class CacheTests(unittest.TestCase): 647 """Test that caching works properly.""" 648 649 def test_time_re_recreation(self): 650 # Make sure cache is recreated when current locale does not match what 651 # cached object was created with. 652 _strptime._strptime_time("10", "%d") 653 _strptime._strptime_time("2005", "%Y") 654 _strptime._TimeRE_cache.locale_time.lang = "Ni" 655 original_time_re = _strptime._TimeRE_cache 656 _strptime._strptime_time("10", "%d") 657 self.assertIsNot(original_time_re, _strptime._TimeRE_cache) 658 self.assertEqual(len(_strptime._regex_cache), 1) 659 660 def test_regex_cleanup(self): 661 # Make sure cached regexes are discarded when cache becomes "full". 662 try: 663 del _strptime._regex_cache['%d'] 664 except KeyError: 665 pass 666 bogus_key = 0 667 while len(_strptime._regex_cache) <= _strptime._CACHE_MAX_SIZE: 668 _strptime._regex_cache[bogus_key] = None 669 bogus_key += 1 670 _strptime._strptime_time("10", "%d") 671 self.assertEqual(len(_strptime._regex_cache), 1) 672 673 def test_new_localetime(self): 674 # A new LocaleTime instance should be created when a new TimeRE object 675 # is created. 676 locale_time_id = _strptime._TimeRE_cache.locale_time 677 _strptime._TimeRE_cache.locale_time.lang = "Ni" 678 _strptime._strptime_time("10", "%d") 679 self.assertIsNot(locale_time_id, _strptime._TimeRE_cache.locale_time) 680 681 def test_TimeRE_recreation_locale(self): 682 # The TimeRE instance should be recreated upon changing the locale. 683 locale_info = locale.getlocale(locale.LC_TIME) 684 try: 685 locale.setlocale(locale.LC_TIME, ('en_US', 'UTF8')) 686 except locale.Error: 687 self.skipTest('test needs en_US.UTF8 locale') 688 try: 689 _strptime._strptime_time('10', '%d') 690 # Get id of current cache object. 691 first_time_re = _strptime._TimeRE_cache 692 try: 693 # Change the locale and force a recreation of the cache. 694 locale.setlocale(locale.LC_TIME, ('de_DE', 'UTF8')) 695 _strptime._strptime_time('10', '%d') 696 # Get the new cache object's id. 697 second_time_re = _strptime._TimeRE_cache 698 # They should not be equal. 699 self.assertIsNot(first_time_re, second_time_re) 700 # Possible test locale is not supported while initial locale is. 701 # If this is the case just suppress the exception and fall-through 702 # to the resetting to the original locale. 703 except locale.Error: 704 self.skipTest('test needs de_DE.UTF8 locale') 705 # Make sure we don't trample on the locale setting once we leave the 706 # test. 707 finally: 708 locale.setlocale(locale.LC_TIME, locale_info) 709 710 @support.run_with_tz('STD-1DST,M4.1.0,M10.1.0') 711 def test_TimeRE_recreation_timezone(self): 712 # The TimeRE instance should be recreated upon changing the timezone. 713 oldtzname = time.tzname 714 tm = _strptime._strptime_time(time.tzname[0], '%Z') 715 self.assertEqual(tm.tm_isdst, 0) 716 tm = _strptime._strptime_time(time.tzname[1], '%Z') 717 self.assertEqual(tm.tm_isdst, 1) 718 # Get id of current cache object. 719 first_time_re = _strptime._TimeRE_cache 720 # Change the timezone and force a recreation of the cache. 721 os.environ['TZ'] = 'EST+05EDT,M3.2.0,M11.1.0' 722 time.tzset() 723 tm = _strptime._strptime_time(time.tzname[0], '%Z') 724 self.assertEqual(tm.tm_isdst, 0) 725 tm = _strptime._strptime_time(time.tzname[1], '%Z') 726 self.assertEqual(tm.tm_isdst, 1) 727 # Get the new cache object's id. 728 second_time_re = _strptime._TimeRE_cache 729 # They should not be equal. 730 self.assertIsNot(first_time_re, second_time_re) 731 # Make sure old names no longer accepted. 732 with self.assertRaises(ValueError): 733 _strptime._strptime_time(oldtzname[0], '%Z') 734 with self.assertRaises(ValueError): 735 _strptime._strptime_time(oldtzname[1], '%Z') 736 737 738if __name__ == '__main__': 739 unittest.main() 740