| from test import support | |
| from test.support import warnings_helper | |
| import decimal | |
| import enum | |
| import fractions | |
| import math | |
| import platform | |
| import sys | |
| import sysconfig | |
| import time | |
| import threading | |
| import unittest | |
| try: | |
| import _testcapi | |
| except ImportError: | |
| _testcapi = None | |
| try: | |
| import _testinternalcapi | |
| except ImportError: | |
| _testinternalcapi = None | |
| from test.support import skip_if_buggy_ucrt_strfptime, SuppressCrashReport | |
| # Max year is only limited by the size of C int. | |
| SIZEOF_INT = sysconfig.get_config_var('SIZEOF_INT') or 4 | |
| TIME_MAXYEAR = (1 << 8 * SIZEOF_INT - 1) - 1 | |
| TIME_MINYEAR = -TIME_MAXYEAR - 1 + 1900 | |
| SEC_TO_US = 10 ** 6 | |
| US_TO_NS = 10 ** 3 | |
| MS_TO_NS = 10 ** 6 | |
| SEC_TO_NS = 10 ** 9 | |
| NS_TO_SEC = 10 ** 9 | |
| class _PyTime(enum.IntEnum): | |
| # Round towards minus infinity (-inf) | |
| ROUND_FLOOR = 0 | |
| # Round towards infinity (+inf) | |
| ROUND_CEILING = 1 | |
| # Round to nearest with ties going to nearest even integer | |
| ROUND_HALF_EVEN = 2 | |
| # Round away from zero | |
| ROUND_UP = 3 | |
| # _PyTime_t is int64_t | |
| PyTime_MIN = -2 ** 63 | |
| PyTime_MAX = 2 ** 63 - 1 | |
| # Rounding modes supported by PyTime | |
| ROUNDING_MODES = ( | |
| # (PyTime rounding method, decimal rounding method) | |
| (_PyTime.ROUND_FLOOR, decimal.ROUND_FLOOR), | |
| (_PyTime.ROUND_CEILING, decimal.ROUND_CEILING), | |
| (_PyTime.ROUND_HALF_EVEN, decimal.ROUND_HALF_EVEN), | |
| (_PyTime.ROUND_UP, decimal.ROUND_UP), | |
| ) | |
| class TimeTestCase(unittest.TestCase): | |
| def setUp(self): | |
| self.t = time.time() | |
| def test_data_attributes(self): | |
| time.altzone | |
| time.daylight | |
| time.timezone | |
| time.tzname | |
| def test_time(self): | |
| time.time() | |
| info = time.get_clock_info('time') | |
| self.assertFalse(info.monotonic) | |
| self.assertTrue(info.adjustable) | |
| def test_time_ns_type(self): | |
| def check_ns(sec, ns): | |
| self.assertIsInstance(ns, int) | |
| sec_ns = int(sec * 1e9) | |
| # tolerate a difference of 50 ms | |
| self.assertLess((sec_ns - ns), 50 ** 6, (sec, ns)) | |
| check_ns(time.time(), | |
| time.time_ns()) | |
| check_ns(time.monotonic(), | |
| time.monotonic_ns()) | |
| check_ns(time.perf_counter(), | |
| time.perf_counter_ns()) | |
| check_ns(time.process_time(), | |
| time.process_time_ns()) | |
| if hasattr(time, 'thread_time'): | |
| check_ns(time.thread_time(), | |
| time.thread_time_ns()) | |
| if hasattr(time, 'clock_gettime'): | |
| check_ns(time.clock_gettime(time.CLOCK_REALTIME), | |
| time.clock_gettime_ns(time.CLOCK_REALTIME)) | |
| @unittest.skipUnless(hasattr(time, 'clock_gettime'), | |
| 'need time.clock_gettime()') | |
| def test_clock_realtime(self): | |
| t = time.clock_gettime(time.CLOCK_REALTIME) | |
| self.assertIsInstance(t, float) | |
| @unittest.skipUnless(hasattr(time, 'clock_gettime'), | |
| 'need time.clock_gettime()') | |
| @unittest.skipUnless(hasattr(time, 'CLOCK_MONOTONIC'), | |
| 'need time.CLOCK_MONOTONIC') | |
| def test_clock_monotonic(self): | |
| a = time.clock_gettime(time.CLOCK_MONOTONIC) | |
| b = time.clock_gettime(time.CLOCK_MONOTONIC) | |
| self.assertLessEqual(a, b) | |
| @unittest.skipUnless(hasattr(time, 'pthread_getcpuclockid'), | |
| 'need time.pthread_getcpuclockid()') | |
| @unittest.skipUnless(hasattr(time, 'clock_gettime'), | |
| 'need time.clock_gettime()') | |
| @unittest.skipIf(support.is_emscripten, "Fails to find clock") | |
| def test_pthread_getcpuclockid(self): | |
| clk_id = time.pthread_getcpuclockid(threading.get_ident()) | |
| self.assertTrue(type(clk_id) is int) | |
| # when in 32-bit mode AIX only returns the predefined constant | |
| if platform.system() == "AIX" and (sys.maxsize.bit_length() <= 32): | |
| self.assertEqual(clk_id, time.CLOCK_THREAD_CPUTIME_ID) | |
| # Solaris returns CLOCK_THREAD_CPUTIME_ID when current thread is given | |
| elif sys.platform.startswith("sunos"): | |
| self.assertEqual(clk_id, time.CLOCK_THREAD_CPUTIME_ID) | |
| else: | |
| self.assertNotEqual(clk_id, time.CLOCK_THREAD_CPUTIME_ID) | |
| t1 = time.clock_gettime(clk_id) | |
| t2 = time.clock_gettime(clk_id) | |
| self.assertLessEqual(t1, t2) | |
| @unittest.skipUnless(hasattr(time, 'clock_getres'), | |
| 'need time.clock_getres()') | |
| def test_clock_getres(self): | |
| res = time.clock_getres(time.CLOCK_REALTIME) | |
| self.assertGreater(res, 0.0) | |
| self.assertLessEqual(res, 1.0) | |
| @unittest.skipUnless(hasattr(time, 'clock_settime'), | |
| 'need time.clock_settime()') | |
| def test_clock_settime(self): | |
| t = time.clock_gettime(time.CLOCK_REALTIME) | |
| try: | |
| time.clock_settime(time.CLOCK_REALTIME, t) | |
| except PermissionError: | |
| pass | |
| if hasattr(time, 'CLOCK_MONOTONIC'): | |
| self.assertRaises(OSError, | |
| time.clock_settime, time.CLOCK_MONOTONIC, 0) | |
| def test_conversions(self): | |
| self.assertEqual(time.ctime(self.t), | |
| time.asctime(time.localtime(self.t))) | |
| self.assertEqual(int(time.mktime(time.localtime(self.t))), | |
| int(self.t)) | |
| def test_sleep_exceptions(self): | |
| self.assertRaises(TypeError, time.sleep, []) | |
| self.assertRaises(TypeError, time.sleep, "a") | |
| self.assertRaises(TypeError, time.sleep, complex(0, 0)) | |
| self.assertRaises(ValueError, time.sleep, -2) | |
| self.assertRaises(ValueError, time.sleep, -1) | |
| self.assertRaises(ValueError, time.sleep, -0.1) | |
| # Improved exception #81267 | |
| with self.assertRaises(TypeError) as errmsg: | |
| time.sleep([]) | |
| self.assertIn("real number", str(errmsg.exception)) | |
| def test_sleep(self): | |
| for value in [-0.0, 0, 0.0, 1e-100, 1e-9, 1e-6, 1, 1.2, | |
| decimal.Decimal('0.02'), | |
| fractions.Fraction(1, 50)]: | |
| with self.subTest(value=value): | |
| time.sleep(value) | |
| def test_epoch(self): | |
| # bpo-43869: Make sure that Python use the same Epoch on all platforms: | |
| # January 1, 1970, 00:00:00 (UTC). | |
| epoch = time.gmtime(0) | |
| # Only test the date and time, ignore other gmtime() members | |
| self.assertEqual(tuple(epoch)[:6], (1970, 1, 1, 0, 0, 0), epoch) | |
| def test_gmtime(self): | |
| # expected format: | |
| # (tm_year, tm_mon, tm_mday, | |
| # tm_hour, tm_min, tm_sec, | |
| # tm_wday, tm_yday) | |
| tests = [ | |
| (-13262400, (1969, 7, 31, 12, 0, 0, 3, 212)), | |
| (-6177600, (1969, 10, 21, 12, 0, 0, 1, 294)), | |
| # leap years (pre epoch) | |
| (-2077660800, (1904, 3, 1, 0, 0, 0, 1, 61)), | |
| (-2077833600, (1904, 2, 28, 0, 0, 0, 6, 59)), | |
| ] | |
| try: | |
| from _testinternalcapi import SIZEOF_TIME_T | |
| except ImportError: | |
| pass | |
| else: | |
| if SIZEOF_TIME_T >= 8: | |
| tests.extend(( | |
| # non-leap years (pre epoch) | |
| (-2203891200, (1900, 3, 1, 0, 0, 0, 3, 60)), | |
| (-2203977600, (1900, 2, 28, 0, 0, 0, 2, 59)), | |
| (-5359564800, (1800, 3, 1, 0, 0, 0, 5, 60)), | |
| (-5359651200, (1800, 2, 28, 0, 0, 0, 4, 59)), | |
| )) | |
| for t, expected in tests: | |
| with self.subTest(t=t, expected=expected): | |
| res = time.gmtime(t) | |
| self.assertEqual(tuple(res)[:8], expected, res) | |
| def test_strftime(self): | |
| tt = time.gmtime(self.t) | |
| for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'H', 'I', | |
| 'j', 'm', 'M', 'p', 'S', | |
| 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'): | |
| format = ' %' + directive | |
| try: | |
| time.strftime(format, tt) | |
| except ValueError: | |
| self.fail('conversion specifier: %r failed.' % format) | |
| self.assertRaises(TypeError, time.strftime, b'%S', tt) | |
| def test_strftime_invalid_format(self): | |
| tt = time.gmtime(self.t) | |
| with SuppressCrashReport(): | |
| for i in range(1, 128): | |
| format = ' %' + chr(i) | |
| with self.subTest(format=format): | |
| try: | |
| time.strftime(format, tt) | |
| except ValueError as exc: | |
| self.assertEqual(str(exc), 'Invalid format string') | |
| def test_strftime_special(self): | |
| tt = time.gmtime(self.t) | |
| s1 = time.strftime('%c', tt) | |
| s2 = time.strftime('%B', tt) | |
| # gh-52551, gh-78662: Unicode strings should pass through strftime, | |
| # independently from locale. | |
| self.assertEqual(time.strftime('\U0001f40d', tt), '\U0001f40d') | |
| self.assertEqual(time.strftime('\U0001f4bb%c\U0001f40d%B', tt), f'\U0001f4bb{s1}\U0001f40d{s2}') | |
| self.assertEqual(time.strftime('%c\U0001f4bb%B\U0001f40d', tt), f'{s1}\U0001f4bb{s2}\U0001f40d') | |
| # Lone surrogates should pass through. | |
| self.assertEqual(time.strftime('\ud83d', tt), '\ud83d') | |
| self.assertEqual(time.strftime('\udc0d', tt), '\udc0d') | |
| self.assertEqual(time.strftime('\ud83d%c\udc0d%B', tt), f'\ud83d{s1}\udc0d{s2}') | |
| self.assertEqual(time.strftime('%c\ud83d%B\udc0d', tt), f'{s1}\ud83d{s2}\udc0d') | |
| self.assertEqual(time.strftime('%c\udc0d%B\ud83d', tt), f'{s1}\udc0d{s2}\ud83d') | |
| # Surrogate pairs should not recombine. | |
| self.assertEqual(time.strftime('\ud83d\udc0d', tt), '\ud83d\udc0d') | |
| self.assertEqual(time.strftime('%c\ud83d\udc0d%B', tt), f'{s1}\ud83d\udc0d{s2}') | |
| # Surrogate-escaped bytes should not recombine. | |
| self.assertEqual(time.strftime('\udcf0\udc9f\udc90\udc8d', tt), '\udcf0\udc9f\udc90\udc8d') | |
| self.assertEqual(time.strftime('%c\udcf0\udc9f\udc90\udc8d%B', tt), f'{s1}\udcf0\udc9f\udc90\udc8d{s2}') | |
| # gh-124531: The null character should not terminate the format string. | |
| self.assertEqual(time.strftime('\0', tt), '\0') | |
| self.assertEqual(time.strftime('\0'*1000, tt), '\0'*1000) | |
| self.assertEqual(time.strftime('\0%c\0%B', tt), f'\0{s1}\0{s2}') | |
| self.assertEqual(time.strftime('%c\0%B\0', tt), f'{s1}\0{s2}\0') | |
| def _bounds_checking(self, func): | |
| # Make sure that strftime() checks the bounds of the various parts | |
| # of the time tuple (0 is valid for *all* values). | |
| # The year field is tested by other test cases above | |
| # Check month [1, 12] + zero support | |
| func((1900, 0, 1, 0, 0, 0, 0, 1, -1)) | |
| func((1900, 12, 1, 0, 0, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, -1, 1, 0, 0, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 13, 1, 0, 0, 0, 0, 1, -1)) | |
| # Check day of month [1, 31] + zero support | |
| func((1900, 1, 0, 0, 0, 0, 0, 1, -1)) | |
| func((1900, 1, 31, 0, 0, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, -1, 0, 0, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 32, 0, 0, 0, 0, 1, -1)) | |
| # Check hour [0, 23] | |
| func((1900, 1, 1, 23, 0, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, -1, 0, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 24, 0, 0, 0, 1, -1)) | |
| # Check minute [0, 59] | |
| func((1900, 1, 1, 0, 59, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, -1, 0, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, 60, 0, 0, 1, -1)) | |
| # Check second [0, 61] | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, 0, -1, 0, 1, -1)) | |
| # C99 only requires allowing for one leap second, but Python's docs say | |
| # allow two leap seconds (0..61) | |
| func((1900, 1, 1, 0, 0, 60, 0, 1, -1)) | |
| func((1900, 1, 1, 0, 0, 61, 0, 1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, 0, 62, 0, 1, -1)) | |
| # No check for upper-bound day of week; | |
| # value forced into range by a ``% 7`` calculation. | |
| # Start check at -2 since gettmarg() increments value before taking | |
| # modulo. | |
| self.assertEqual(func((1900, 1, 1, 0, 0, 0, -1, 1, -1)), | |
| func((1900, 1, 1, 0, 0, 0, +6, 1, -1))) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, 0, 0, -2, 1, -1)) | |
| # Check day of the year [1, 366] + zero support | |
| func((1900, 1, 1, 0, 0, 0, 0, 0, -1)) | |
| func((1900, 1, 1, 0, 0, 0, 0, 366, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, 0, 0, 0, -1, -1)) | |
| self.assertRaises(ValueError, func, | |
| (1900, 1, 1, 0, 0, 0, 0, 367, -1)) | |
| def test_strftime_bounding_check(self): | |
| self._bounds_checking(lambda tup: time.strftime('', tup)) | |
| def test_strftime_format_check(self): | |
| # Test that strftime does not crash on invalid format strings | |
| # that may trigger a buffer overread. When not triggered, | |
| # strftime may succeed or raise ValueError depending on | |
| # the platform. | |
| for x in [ '', 'A', '%A', '%AA' ]: | |
| for y in range(0x0, 0x10): | |
| for z in [ '%', 'A%', 'AA%', '%A%', 'A%A%', '%#' ]: | |
| try: | |
| time.strftime(x * y + z) | |
| except ValueError: | |
| pass | |
| def test_default_values_for_zero(self): | |
| # Make sure that using all zeros uses the proper default | |
| # values. No test for daylight savings since strftime() does | |
| # not change output based on its value and no test for year | |
| # because systems vary in their support for year 0. | |
| expected = "2000 01 01 00 00 00 1 001" | |
| with warnings_helper.check_warnings(): | |
| result = time.strftime("%Y %m %d %H %M %S %w %j", (2000,)+(0,)*8) | |
| self.assertEqual(expected, result) | |
| @skip_if_buggy_ucrt_strfptime | |
| def test_strptime(self): | |
| # Should be able to go round-trip from strftime to strptime without | |
| # raising an exception. | |
| tt = time.gmtime(self.t) | |
| for directive in ('a', 'A', 'b', 'B', 'c', 'd', 'D', 'e', 'F', 'H', 'I', | |
| 'j', 'm', 'M', 'n', 'p', 'S', 't', 'T', | |
| 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'): | |
| format = '%' + directive | |
| if directive in ('d', 'e'): | |
| format += ',%Y' # Avoid GH-70647. | |
| strf_output = time.strftime(format, tt) | |
| try: | |
| time.strptime(strf_output, format) | |
| except ValueError: | |
| self.fail("conversion specifier %r failed with '%s' input." % | |
| (format, strf_output)) | |
| def test_strptime_bytes(self): | |
| # Make sure only strings are accepted as arguments to strptime. | |
| self.assertRaises(TypeError, time.strptime, b'2009', "%Y") | |
| self.assertRaises(TypeError, time.strptime, '2009', b'%Y') | |
| def test_strptime_exception_context(self): | |
| # check that this doesn't chain exceptions needlessly (see #17572) | |
| with self.assertRaises(ValueError) as e: | |
| time.strptime('', '%!') | |
| self.assertTrue(e.exception.__suppress_context__) | |
| # additional check for stray % branch | |
| with self.assertRaises(ValueError) as e: | |
| time.strptime('%', '%') | |
| self.assertTrue(e.exception.__suppress_context__) | |
| def test_strptime_leap_year(self): | |
| # GH-70647: %d errors if parsing a format with a day and no year. | |
| with self.assertRaises(ValueError): | |
| time.strptime('02-07 18:28', '%m-%d %H:%M') | |
| # %e without a year is deprecated, scheduled for removal in 3.17. | |
| with self.assertWarnsRegex(DeprecationWarning, | |
| r'.*day of month without a year.*'): | |
| time.strptime('02-07 18:28', '%m-%e %H:%M') | |
| def test_asctime(self): | |
| time.asctime(time.gmtime(self.t)) | |
| # Max year is only limited by the size of C int. | |
| for bigyear in TIME_MAXYEAR, TIME_MINYEAR: | |
| asc = time.asctime((bigyear, 6, 1) + (0,) * 6) | |
| self.assertEqual(asc[-len(str(bigyear)):], str(bigyear)) | |
| self.assertRaises(OverflowError, time.asctime, | |
| (TIME_MAXYEAR + 1,) + (0,) * 8) | |
| self.assertRaises(OverflowError, time.asctime, | |
| (TIME_MINYEAR - 1,) + (0,) * 8) | |
| self.assertRaises(TypeError, time.asctime, 0) | |
| self.assertRaises(TypeError, time.asctime, ()) | |
| self.assertRaises(TypeError, time.asctime, (0,) * 10) | |
| def test_asctime_bounding_check(self): | |
| self._bounds_checking(time.asctime) | |
| def test_ctime(self): | |
| t = time.mktime((1973, 9, 16, 1, 3, 52, 0, 0, -1)) | |
| self.assertEqual(time.ctime(t), 'Sun Sep 16 01:03:52 1973') | |
| t = time.mktime((2000, 1, 1, 0, 0, 0, 0, 0, -1)) | |
| self.assertEqual(time.ctime(t), 'Sat Jan 1 00:00:00 2000') | |
| for year in [-100, 100, 1000, 2000, 2050, 10000]: | |
| try: | |
| testval = time.mktime((year, 1, 10) + (0,)*6) | |
| except (ValueError, OverflowError): | |
| # If mktime fails, ctime will fail too. This may happen | |
| # on some platforms. | |
| pass | |
| else: | |
| self.assertEqual(time.ctime(testval)[20:], str(year)) | |
| @unittest.skipUnless(hasattr(time, "tzset"), | |
| "time module has no attribute tzset") | |
| def test_tzset(self): | |
| from os import environ | |
| # Epoch time of midnight Dec 25th 2002. Never DST in northern | |
| # hemisphere. | |
| xmas2002 = 1040774400.0 | |
| # These formats are correct for 2002, and possibly future years | |
| # This format is the 'standard' as documented at: | |
| # http://www.opengroup.org/onlinepubs/007904975/basedefs/xbd_chap08.html | |
| # They are also documented in the tzset(3) man page on most Unix | |
| # systems. | |
| eastern = 'EST+05EDT,M4.1.0,M10.5.0' | |
| victoria = 'AEST-10AEDT-11,M10.5.0,M3.5.0' | |
| utc='UTC+0' | |
| org_TZ = environ.get('TZ',None) | |
| try: | |
| # Make sure we can switch to UTC time and results are correct | |
| # Note that unknown timezones default to UTC. | |
| # Note that altzone is undefined in UTC, as there is no DST | |
| environ['TZ'] = eastern | |
| time.tzset() | |
| environ['TZ'] = utc | |
| time.tzset() | |
| self.assertEqual( | |
| time.gmtime(xmas2002), time.localtime(xmas2002) | |
| ) | |
| self.assertEqual(time.daylight, 0) | |
| self.assertEqual(time.timezone, 0) | |
| self.assertEqual(time.localtime(xmas2002).tm_isdst, 0) | |
| # Make sure we can switch to US/Eastern | |
| environ['TZ'] = eastern | |
| time.tzset() | |
| self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002)) | |
| self.assertEqual(time.tzname, ('EST', 'EDT')) | |
| self.assertEqual(len(time.tzname), 2) | |
| self.assertEqual(time.daylight, 1) | |
| self.assertEqual(time.timezone, 18000) | |
| self.assertEqual(time.altzone, 14400) | |
| self.assertEqual(time.localtime(xmas2002).tm_isdst, 0) | |
| self.assertEqual(len(time.tzname), 2) | |
| # Now go to the southern hemisphere. | |
| environ['TZ'] = victoria | |
| time.tzset() | |
| self.assertNotEqual(time.gmtime(xmas2002), time.localtime(xmas2002)) | |
| # Issue #11886: Australian Eastern Standard Time (UTC+10) is called | |
| # "EST" (as Eastern Standard Time, UTC-5) instead of "AEST" | |
| # (non-DST timezone), and "EDT" instead of "AEDT" (DST timezone), | |
| # on some operating systems (e.g. FreeBSD), which is wrong. See for | |
| # example this bug: | |
| # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=93810 | |
| self.assertIn(time.tzname[0], ('AEST' 'EST'), time.tzname[0]) | |
| self.assertTrue(time.tzname[1] in ('AEDT', 'EDT'), str(time.tzname[1])) | |
| self.assertEqual(len(time.tzname), 2) | |
| self.assertEqual(time.daylight, 1) | |
| self.assertEqual(time.timezone, -36000) | |
| self.assertEqual(time.altzone, -39600) | |
| self.assertEqual(time.localtime(xmas2002).tm_isdst, 1) | |
| finally: | |
| # Repair TZ environment variable in case any other tests | |
| # rely on it. | |
| if org_TZ is not None: | |
| environ['TZ'] = org_TZ | |
| elif 'TZ' in environ: | |
| del environ['TZ'] | |
| time.tzset() | |
| def test_insane_timestamps(self): | |
| # It's possible that some platform maps time_t to double, | |
| # and that this test will fail there. This test should | |
| # exempt such platforms (provided they return reasonable | |
| # results!). | |
| for func in time.ctime, time.gmtime, time.localtime: | |
| for unreasonable in -1e200, 1e200: | |
| self.assertRaises(OverflowError, func, unreasonable) | |
| def test_ctime_without_arg(self): | |
| # Not sure how to check the values, since the clock could tick | |
| # at any time. Make sure these are at least accepted and | |
| # don't raise errors. | |
| time.ctime() | |
| time.ctime(None) | |
| def test_gmtime_without_arg(self): | |
| gt0 = time.gmtime() | |
| gt1 = time.gmtime(None) | |
| t0 = time.mktime(gt0) | |
| t1 = time.mktime(gt1) | |
| self.assertAlmostEqual(t1, t0, delta=0.2) | |
| def test_localtime_without_arg(self): | |
| lt0 = time.localtime() | |
| lt1 = time.localtime(None) | |
| t0 = time.mktime(lt0) | |
| t1 = time.mktime(lt1) | |
| self.assertAlmostEqual(t1, t0, delta=0.2) | |
| def test_mktime(self): | |
| # Issue #1726687 | |
| for t in (-2, -1, 0, 1): | |
| t_struct = time.localtime(t) | |
| try: | |
| t1 = time.mktime(t_struct) | |
| except (OverflowError, OSError): | |
| pass | |
| else: | |
| self.assertEqual(t1, t) | |
| # Issue #13309: passing extreme values to mktime() or localtime() | |
| # borks the glibc's internal timezone data. | |
| @unittest.skipUnless(platform.libc_ver()[0] != 'glibc', | |
| "disabled because of a bug in glibc. Issue #13309") | |
| def test_mktime_error(self): | |
| # It may not be possible to reliably make mktime return an error | |
| # on all platforms. This will make sure that no other exception | |
| # than OverflowError is raised for an extreme value. | |
| tt = time.gmtime(self.t) | |
| tzname = time.strftime('%Z', tt) | |
| self.assertNotEqual(tzname, 'LMT') | |
| try: | |
| time.mktime((-1, 1, 1, 0, 0, 0, -1, -1, -1)) | |
| except OverflowError: | |
| pass | |
| self.assertEqual(time.strftime('%Z', tt), tzname) | |
| def test_monotonic(self): | |
| # monotonic() should not go backward | |
| times = [time.monotonic() for n in range(100)] | |
| t1 = times[0] | |
| for t2 in times[1:]: | |
| self.assertGreaterEqual(t2, t1, "times=%s" % times) | |
| t1 = t2 | |
| # monotonic() includes time elapsed during a sleep | |
| t1 = time.monotonic() | |
| time.sleep(0.5) | |
| t2 = time.monotonic() | |
| dt = t2 - t1 | |
| self.assertGreater(t2, t1) | |
| # bpo-20101: tolerate a difference of 50 ms because of bad timer | |
| # resolution on Windows | |
| self.assertTrue(0.450 <= dt) | |
| # monotonic() is a monotonic but non adjustable clock | |
| info = time.get_clock_info('monotonic') | |
| self.assertTrue(info.monotonic) | |
| self.assertFalse(info.adjustable) | |
| def test_perf_counter(self): | |
| time.perf_counter() | |
| @unittest.skipIf( | |
| support.is_wasi, "process_time not available on WASI" | |
| ) | |
| @unittest.skipIf( | |
| support.is_emscripten, "process_time present but doesn't exclude sleep" | |
| ) | |
| def test_process_time(self): | |
| # process_time() should not include time spend during a sleep | |
| start = time.process_time() | |
| time.sleep(0.100) | |
| stop = time.process_time() | |
| # use 20 ms because process_time() has usually a resolution of 15 ms | |
| # on Windows | |
| self.assertLess(stop - start, 0.020) | |
| info = time.get_clock_info('process_time') | |
| self.assertTrue(info.monotonic) | |
| self.assertFalse(info.adjustable) | |
| def test_thread_time(self): | |
| if not hasattr(time, 'thread_time'): | |
| if sys.platform.startswith(('linux', 'android', 'win')): | |
| self.fail("time.thread_time() should be available on %r" | |
| % (sys.platform,)) | |
| else: | |
| self.skipTest("need time.thread_time") | |
| # thread_time() should not include time spend during a sleep | |
| start = time.thread_time() | |
| time.sleep(0.200) | |
| stop = time.thread_time() | |
| # gh-143528: use 100 ms to support slow CI | |
| self.assertLess(stop - start, 0.100) | |
| info = time.get_clock_info('thread_time') | |
| self.assertTrue(info.monotonic) | |
| self.assertFalse(info.adjustable) | |
| @unittest.skipUnless(hasattr(time, 'clock_settime'), | |
| 'need time.clock_settime') | |
| def test_monotonic_settime(self): | |
| t1 = time.monotonic() | |
| realtime = time.clock_gettime(time.CLOCK_REALTIME) | |
| # jump backward with an offset of 1 hour | |
| try: | |
| time.clock_settime(time.CLOCK_REALTIME, realtime - 3600) | |
| except PermissionError as err: | |
| self.skipTest(err) | |
| t2 = time.monotonic() | |
| time.clock_settime(time.CLOCK_REALTIME, realtime) | |
| # monotonic must not be affected by system clock updates | |
| self.assertGreaterEqual(t2, t1) | |
| def test_localtime_failure(self): | |
| # Issue #13847: check for localtime() failure | |
| invalid_time_t = None | |
| for time_t in (-1, 2**30, 2**33, 2**60): | |
| try: | |
| time.localtime(time_t) | |
| except OverflowError: | |
| self.skipTest("need 64-bit time_t") | |
| except OSError: | |
| invalid_time_t = time_t | |
| break | |
| if invalid_time_t is None: | |
| self.skipTest("unable to find an invalid time_t value") | |
| self.assertRaises(OSError, time.localtime, invalid_time_t) | |
| self.assertRaises(OSError, time.ctime, invalid_time_t) | |
| # Issue #26669: check for localtime() failure | |
| self.assertRaises(ValueError, time.localtime, float("nan")) | |
| self.assertRaises(ValueError, time.ctime, float("nan")) | |
| def test_get_clock_info(self): | |
| clocks = [ | |
| 'monotonic', | |
| 'perf_counter', | |
| 'process_time', | |
| 'time', | |
| ] | |
| if hasattr(time, 'thread_time'): | |
| clocks.append('thread_time') | |
| for name in clocks: | |
| with self.subTest(name=name): | |
| info = time.get_clock_info(name) | |
| self.assertIsInstance(info.implementation, str) | |
| self.assertNotEqual(info.implementation, '') | |
| self.assertIsInstance(info.monotonic, bool) | |
| self.assertIsInstance(info.resolution, float) | |
| # 0.0 < resolution <= 1.0 | |
| self.assertGreater(info.resolution, 0.0) | |
| self.assertLessEqual(info.resolution, 1.0) | |
| self.assertIsInstance(info.adjustable, bool) | |
| self.assertRaises(ValueError, time.get_clock_info, 'xxx') | |
| class TestLocale(unittest.TestCase): | |
| @support.run_with_locale('LC_ALL', 'fr_FR', '') | |
| def test_bug_3061(self): | |
| # This should not cause an exception | |
| time.strftime("%B", (2009,2,1,0,0,0,0,0,0)) | |
| class _TestAsctimeYear: | |
| _format = '%d' | |
| def yearstr(self, y): | |
| return time.asctime((y,) + (0,) * 8).split()[-1] | |
| def test_large_year(self): | |
| # Check that it doesn't crash for year > 9999 | |
| self.assertEqual(self.yearstr(12345), '12345') | |
| self.assertEqual(self.yearstr(123456789), '123456789') | |
| class _TestStrftimeYear: | |
| # Issue 13305: For years < 1000, the value is not always | |
| # padded to 4 digits across platforms. The C standard | |
| # assumes year >= 1900, so it does not specify the number | |
| # of digits. | |
| if time.strftime('%Y', (1,) + (0,) * 8) == '0001': | |
| _format = '%04d' | |
| else: | |
| _format = '%d' | |
| def yearstr(self, y): | |
| return time.strftime('%Y', (y,) + (0,) * 8) | |
| @unittest.skipUnless( | |
| support.has_strftime_extensions, "requires strftime extension" | |
| ) | |
| def test_4dyear(self): | |
| # Check that we can return the zero padded value. | |
| if self._format == '%04d': | |
| self.test_year('%04d') | |
| else: | |
| def year4d(y): | |
| return time.strftime('%4Y', (y,) + (0,) * 8) | |
| self.test_year('%04d', func=year4d) | |
| def skip_if_not_supported(y): | |
| msg = f"strftime() does not support year {y} on this platform" | |
| try: | |
| time.strftime('%Y', (y,) + (0,) * 8) | |
| except ValueError: | |
| cond = False | |
| else: | |
| cond = True | |
| return unittest.skipUnless(cond, msg) | |
| @skip_if_not_supported(10000) | |
| def test_large_year(self): | |
| return super().test_large_year() | |
| @skip_if_not_supported(0) | |
| def test_negative(self): | |
| return super().test_negative() | |
| del skip_if_not_supported | |
| class _Test4dYear: | |
| _format = '%d' | |
| def test_year(self, fmt=None, func=None): | |
| fmt = fmt or self._format | |
| func = func or self.yearstr | |
| self.assertEqual(func(1), fmt % 1) | |
| self.assertEqual(func(68), fmt % 68) | |
| self.assertEqual(func(69), fmt % 69) | |
| self.assertEqual(func(99), fmt % 99) | |
| self.assertEqual(func(999), fmt % 999) | |
| self.assertEqual(func(9999), fmt % 9999) | |
| def test_large_year(self): | |
| self.assertEqual(self.yearstr(12345).lstrip('+'), '12345') | |
| self.assertEqual(self.yearstr(123456789).lstrip('+'), '123456789') | |
| self.assertEqual(self.yearstr(TIME_MAXYEAR).lstrip('+'), str(TIME_MAXYEAR)) | |
| self.assertRaises(OverflowError, self.yearstr, TIME_MAXYEAR + 1) | |
| def test_negative(self): | |
| self.assertEqual(self.yearstr(-1), self._format % -1) | |
| self.assertEqual(self.yearstr(-1234), '-1234') | |
| self.assertEqual(self.yearstr(-123456), '-123456') | |
| self.assertEqual(self.yearstr(-123456789), str(-123456789)) | |
| self.assertEqual(self.yearstr(-1234567890), str(-1234567890)) | |
| self.assertEqual(self.yearstr(TIME_MINYEAR), str(TIME_MINYEAR)) | |
| # Modules/timemodule.c checks for underflow | |
| self.assertRaises(OverflowError, self.yearstr, TIME_MINYEAR - 1) | |
| with self.assertRaises(OverflowError): | |
| self.yearstr(-TIME_MAXYEAR - 1) | |
| class TestAsctime4dyear(_TestAsctimeYear, _Test4dYear, unittest.TestCase): | |
| pass | |
| class TestStrftime4dyear(_TestStrftimeYear, _Test4dYear, unittest.TestCase): | |
| pass | |
| class TestPytime(unittest.TestCase): | |
| @skip_if_buggy_ucrt_strfptime | |
| def test_localtime_timezone(self): | |
| # Get the localtime and examine it for the offset and zone. | |
| lt = time.localtime() | |
| self.assertHasAttr(lt, "tm_gmtoff") | |
| self.assertHasAttr(lt, "tm_zone") | |
| # See if the offset and zone are similar to the module | |
| # attributes. | |
| if lt.tm_gmtoff is None: | |
| self.assertNotHasAttr(time, "timezone") | |
| else: | |
| self.assertEqual(lt.tm_gmtoff, -[time.timezone, time.altzone][lt.tm_isdst]) | |
| if lt.tm_zone is None: | |
| self.assertNotHasAttr(time, "tzname") | |
| else: | |
| self.assertEqual(lt.tm_zone, time.tzname[lt.tm_isdst]) | |
| # Try and make UNIX times from the localtime and a 9-tuple | |
| # created from the localtime. Test to see that the times are | |
| # the same. | |
| t = time.mktime(lt); t9 = time.mktime(lt[:9]) | |
| self.assertEqual(t, t9) | |
| # Make localtimes from the UNIX times and compare them to | |
| # the original localtime, thus making a round trip. | |
| new_lt = time.localtime(t); new_lt9 = time.localtime(t9) | |
| self.assertEqual(new_lt, lt) | |
| self.assertEqual(new_lt.tm_gmtoff, lt.tm_gmtoff) | |
| self.assertEqual(new_lt.tm_zone, lt.tm_zone) | |
| self.assertEqual(new_lt9, lt) | |
| self.assertEqual(new_lt.tm_gmtoff, lt.tm_gmtoff) | |
| self.assertEqual(new_lt9.tm_zone, lt.tm_zone) | |
| def test_strptime_timezone(self): | |
| t = time.strptime("UTC", "%Z") | |
| self.assertEqual(t.tm_zone, 'UTC') | |
| t = time.strptime("+0500", "%z") | |
| self.assertEqual(t.tm_gmtoff, 5 * 3600) | |
| def test_short_times(self): | |
| import pickle | |
| # Load a short time structure using pickle. | |
| st = b"ctime\nstruct_time\np0\n((I2007\nI8\nI11\nI1\nI24\nI49\nI5\nI223\nI1\ntp1\n(dp2\ntp3\nRp4\n." | |
| lt = pickle.loads(st) | |
| self.assertIs(lt.tm_gmtoff, None) | |
| self.assertIs(lt.tm_zone, None) | |
| @unittest.skipIf(_testcapi is None, 'need the _testinternalcapi module') | |
| @unittest.skipIf(_testinternalcapi is None, 'need the _testinternalcapi module') | |
| class CPyTimeTestCase: | |
| """ | |
| Base class to test the C _PyTime_t API. | |
| """ | |
| OVERFLOW_SECONDS = None | |
| def setUp(self): | |
| from _testinternalcapi import SIZEOF_TIME_T | |
| bits = SIZEOF_TIME_T * 8 - 1 | |
| self.time_t_min = -2 ** bits | |
| self.time_t_max = 2 ** bits - 1 | |
| def time_t_filter(self, seconds): | |
| return (self.time_t_min <= seconds <= self.time_t_max) | |
| def _rounding_values(self, use_float): | |
| "Build timestamps used to test rounding." | |
| units = [1, US_TO_NS, MS_TO_NS, SEC_TO_NS] | |
| if use_float: | |
| # picoseconds are only tested to pytime_converter accepting floats | |
| units.append(1e-3) | |
| values = ( | |
| # small values | |
| 1, 2, 5, 7, 123, 456, 1234, | |
| # 10^k - 1 | |
| 9, | |
| 99, | |
| 999, | |
| 9999, | |
| 99999, | |
| 999999, | |
| # test half even rounding near 0.5, 1.5, 2.5, 3.5, 4.5 | |
| 499, 500, 501, | |
| 1499, 1500, 1501, | |
| 2500, | |
| 3500, | |
| 4500, | |
| ) | |
| ns_timestamps = [0] | |
| for unit in units: | |
| for value in values: | |
| ns = value * unit | |
| ns_timestamps.extend((-ns, ns)) | |
| for pow2 in (0, 5, 10, 15, 22, 23, 24, 30, 33): | |
| ns = (2 ** pow2) * SEC_TO_NS | |
| ns_timestamps.extend(( | |
| -ns-1, -ns, -ns+1, | |
| ns-1, ns, ns+1 | |
| )) | |
| for seconds in (_testcapi.INT_MIN, _testcapi.INT_MAX): | |
| ns_timestamps.append(seconds * SEC_TO_NS) | |
| if use_float: | |
| # numbers with an exact representation in IEEE 754 (base 2) | |
| for pow2 in (3, 7, 10, 15): | |
| ns = 2.0 ** (-pow2) | |
| ns_timestamps.extend((-ns, ns)) | |
| # seconds close to _PyTime_t type limit | |
| ns = (2 ** 63 // SEC_TO_NS) * SEC_TO_NS | |
| ns_timestamps.extend((-ns, ns)) | |
| return ns_timestamps | |
| def _check_rounding(self, pytime_converter, expected_func, | |
| use_float, unit_to_sec, value_filter=None): | |
| def convert_values(ns_timestamps): | |
| if use_float: | |
| unit_to_ns = SEC_TO_NS / float(unit_to_sec) | |
| values = [ns / unit_to_ns for ns in ns_timestamps] | |
| else: | |
| unit_to_ns = SEC_TO_NS // unit_to_sec | |
| values = [ns // unit_to_ns for ns in ns_timestamps] | |
| if value_filter: | |
| values = filter(value_filter, values) | |
| # remove duplicates and sort | |
| return sorted(set(values)) | |
| # test rounding | |
| ns_timestamps = self._rounding_values(use_float) | |
| valid_values = convert_values(ns_timestamps) | |
| for time_rnd, decimal_rnd in ROUNDING_MODES: | |
| with decimal.localcontext() as context: | |
| context.rounding = decimal_rnd | |
| for value in valid_values: | |
| debug_info = {'value': value, 'rounding': decimal_rnd} | |
| try: | |
| result = pytime_converter(value, time_rnd) | |
| expected = expected_func(value) | |
| except Exception: | |
| self.fail("Error on timestamp conversion: %s" % debug_info) | |
| self.assertEqual(result, | |
| expected, | |
| debug_info) | |
| # test overflow | |
| ns = self.OVERFLOW_SECONDS * SEC_TO_NS | |
| ns_timestamps = (-ns, ns) | |
| overflow_values = convert_values(ns_timestamps) | |
| for time_rnd, _ in ROUNDING_MODES : | |
| for value in overflow_values: | |
| debug_info = {'value': value, 'rounding': time_rnd} | |
| with self.assertRaises(OverflowError, msg=debug_info): | |
| pytime_converter(value, time_rnd) | |
| def check_int_rounding(self, pytime_converter, expected_func, | |
| unit_to_sec=1, value_filter=None): | |
| self._check_rounding(pytime_converter, expected_func, | |
| False, unit_to_sec, value_filter) | |
| def check_float_rounding(self, pytime_converter, expected_func, | |
| unit_to_sec=1, value_filter=None): | |
| self._check_rounding(pytime_converter, expected_func, | |
| True, unit_to_sec, value_filter) | |
| def decimal_round(self, x): | |
| d = decimal.Decimal(x) | |
| d = d.quantize(1) | |
| return int(d) | |
| class TestCPyTime(CPyTimeTestCase, unittest.TestCase): | |
| """ | |
| Test the C _PyTime_t API. | |
| """ | |
| # _PyTime_t is a 64-bit signed integer | |
| OVERFLOW_SECONDS = math.ceil((2**63 + 1) / SEC_TO_NS) | |
| def test_FromSeconds(self): | |
| from _testinternalcapi import _PyTime_FromSeconds | |
| # _PyTime_FromSeconds() expects a C int, reject values out of range | |
| def c_int_filter(secs): | |
| return (_testcapi.INT_MIN <= secs <= _testcapi.INT_MAX) | |
| self.check_int_rounding(lambda secs, rnd: _PyTime_FromSeconds(secs), | |
| lambda secs: secs * SEC_TO_NS, | |
| value_filter=c_int_filter) | |
| # test nan | |
| for time_rnd, _ in ROUNDING_MODES: | |
| with self.assertRaises(TypeError): | |
| _PyTime_FromSeconds(float('nan')) | |
| def test_FromSecondsObject(self): | |
| from _testinternalcapi import _PyTime_FromSecondsObject | |
| self.check_int_rounding( | |
| _PyTime_FromSecondsObject, | |
| lambda secs: secs * SEC_TO_NS) | |
| self.check_float_rounding( | |
| _PyTime_FromSecondsObject, | |
| lambda ns: self.decimal_round(ns * SEC_TO_NS)) | |
| # test nan | |
| for time_rnd, _ in ROUNDING_MODES: | |
| with self.assertRaises(ValueError): | |
| _PyTime_FromSecondsObject(float('nan'), time_rnd) | |
| def test_FromSecondsObject_float_overflow_message(self): | |
| # Float path must report a PyTime_t overflow, like the integer path. | |
| from _testinternalcapi import _PyTime_FromSecondsObject | |
| for value in (PyTime_MAX, PyTime_MIN): | |
| for time_rnd, _ in ROUNDING_MODES: | |
| with self.subTest(value=value, time_rnd=time_rnd): | |
| with self.assertRaisesRegex( | |
| OverflowError, | |
| "timestamp out of range for C PyTime_t"): | |
| _PyTime_FromSecondsObject(value, time_rnd) | |
| def test_AsSecondsDouble(self): | |
| from _testcapi import PyTime_AsSecondsDouble | |
| def float_converter(ns): | |
| if abs(ns) % SEC_TO_NS == 0: | |
| return float(ns // SEC_TO_NS) | |
| else: | |
| return float(ns) / SEC_TO_NS | |
| self.check_int_rounding(lambda ns, rnd: PyTime_AsSecondsDouble(ns), | |
| float_converter, | |
| NS_TO_SEC) | |
| def create_decimal_converter(self, denominator): | |
| denom = decimal.Decimal(denominator) | |
| def converter(value): | |
| d = decimal.Decimal(value) / denom | |
| return self.decimal_round(d) | |
| return converter | |
| def test_AsTimeval(self): | |
| from _testinternalcapi import _PyTime_AsTimeval | |
| us_converter = self.create_decimal_converter(US_TO_NS) | |
| def timeval_converter(ns): | |
| us = us_converter(ns) | |
| return divmod(us, SEC_TO_US) | |
| if sys.platform == 'win32': | |
| from _testcapi import LONG_MIN, LONG_MAX | |
| # On Windows, timeval.tv_sec type is a C long | |
| def seconds_filter(secs): | |
| return LONG_MIN <= secs <= LONG_MAX | |
| else: | |
| seconds_filter = self.time_t_filter | |
| self.check_int_rounding(_PyTime_AsTimeval, | |
| timeval_converter, | |
| NS_TO_SEC, | |
| value_filter=seconds_filter) | |
| @unittest.skipUnless(hasattr(_testinternalcapi, '_PyTime_AsTimespec'), | |
| 'need _testinternalcapi._PyTime_AsTimespec') | |
| def test_AsTimespec(self): | |
| from _testinternalcapi import _PyTime_AsTimespec | |
| def timespec_converter(ns): | |
| return divmod(ns, SEC_TO_NS) | |
| self.check_int_rounding(lambda ns, rnd: _PyTime_AsTimespec(ns), | |
| timespec_converter, | |
| NS_TO_SEC, | |
| value_filter=self.time_t_filter) | |
| @unittest.skipUnless(hasattr(_testinternalcapi, '_PyTime_AsTimeval_clamp'), | |
| 'need _testinternalcapi._PyTime_AsTimeval_clamp') | |
| def test_AsTimeval_clamp(self): | |
| from _testinternalcapi import _PyTime_AsTimeval_clamp | |
| if sys.platform == 'win32': | |
| from _testcapi import LONG_MIN, LONG_MAX | |
| tv_sec_max = LONG_MAX | |
| tv_sec_min = LONG_MIN | |
| else: | |
| tv_sec_max = self.time_t_max | |
| tv_sec_min = self.time_t_min | |
| for t in (PyTime_MIN, PyTime_MAX): | |
| ts = _PyTime_AsTimeval_clamp(t, _PyTime.ROUND_CEILING) | |
| with decimal.localcontext() as context: | |
| context.rounding = decimal.ROUND_CEILING | |
| us = self.decimal_round(decimal.Decimal(t) / US_TO_NS) | |
| tv_sec, tv_usec = divmod(us, SEC_TO_US) | |
| if tv_sec_max < tv_sec: | |
| tv_sec = tv_sec_max | |
| tv_usec = 0 | |
| elif tv_sec < tv_sec_min: | |
| tv_sec = tv_sec_min | |
| tv_usec = 0 | |
| self.assertEqual(ts, (tv_sec, tv_usec)) | |
| @unittest.skipUnless(hasattr(_testinternalcapi, '_PyTime_AsTimespec_clamp'), | |
| 'need _testinternalcapi._PyTime_AsTimespec_clamp') | |
| def test_AsTimespec_clamp(self): | |
| from _testinternalcapi import _PyTime_AsTimespec_clamp | |
| for t in (PyTime_MIN, PyTime_MAX): | |
| ts = _PyTime_AsTimespec_clamp(t) | |
| tv_sec, tv_nsec = divmod(t, NS_TO_SEC) | |
| if self.time_t_max < tv_sec: | |
| tv_sec = self.time_t_max | |
| tv_nsec = 0 | |
| elif tv_sec < self.time_t_min: | |
| tv_sec = self.time_t_min | |
| tv_nsec = 0 | |
| self.assertEqual(ts, (tv_sec, tv_nsec)) | |
| def test_AsMilliseconds(self): | |
| from _testinternalcapi import _PyTime_AsMilliseconds | |
| self.check_int_rounding(_PyTime_AsMilliseconds, | |
| self.create_decimal_converter(MS_TO_NS), | |
| NS_TO_SEC) | |
| def test_AsMicroseconds(self): | |
| from _testinternalcapi import _PyTime_AsMicroseconds | |
| self.check_int_rounding(_PyTime_AsMicroseconds, | |
| self.create_decimal_converter(US_TO_NS), | |
| NS_TO_SEC) | |
| class TestOldPyTime(CPyTimeTestCase, unittest.TestCase): | |
| """ | |
| Test the old C _PyTime_t API: _PyTime_ObjectToXXX() functions. | |
| """ | |
| # time_t is a 32-bit or 64-bit signed integer | |
| OVERFLOW_SECONDS = 2 ** 64 | |
| def test_object_to_time_t(self): | |
| from _testinternalcapi import _PyTime_ObjectToTime_t | |
| self.check_int_rounding(_PyTime_ObjectToTime_t, | |
| lambda secs: secs, | |
| value_filter=self.time_t_filter) | |
| self.check_float_rounding(_PyTime_ObjectToTime_t, | |
| self.decimal_round, | |
| value_filter=self.time_t_filter) | |
| def create_converter(self, sec_to_unit): | |
| def converter(secs): | |
| floatpart, intpart = math.modf(secs) | |
| intpart = int(intpart) | |
| floatpart *= sec_to_unit | |
| floatpart = self.decimal_round(floatpart) | |
| if floatpart < 0: | |
| floatpart += sec_to_unit | |
| intpart -= 1 | |
| elif floatpart >= sec_to_unit: | |
| floatpart -= sec_to_unit | |
| intpart += 1 | |
| return (intpart, floatpart) | |
| return converter | |
| def test_object_to_timeval(self): | |
| from _testinternalcapi import _PyTime_ObjectToTimeval | |
| self.check_int_rounding(_PyTime_ObjectToTimeval, | |
| lambda secs: (secs, 0), | |
| value_filter=self.time_t_filter) | |
| self.check_float_rounding(_PyTime_ObjectToTimeval, | |
| self.create_converter(SEC_TO_US), | |
| value_filter=self.time_t_filter) | |
| # test nan | |
| for time_rnd, _ in ROUNDING_MODES: | |
| with self.assertRaises(ValueError): | |
| _PyTime_ObjectToTimeval(float('nan'), time_rnd) | |
| def test_object_to_timespec(self): | |
| from _testinternalcapi import _PyTime_ObjectToTimespec | |
| self.check_int_rounding(_PyTime_ObjectToTimespec, | |
| lambda secs: (secs, 0), | |
| value_filter=self.time_t_filter) | |
| self.check_float_rounding(_PyTime_ObjectToTimespec, | |
| self.create_converter(SEC_TO_NS), | |
| value_filter=self.time_t_filter) | |
| # test nan | |
| for time_rnd, _ in ROUNDING_MODES: | |
| with self.assertRaises(ValueError): | |
| _PyTime_ObjectToTimespec(float('nan'), time_rnd) | |
| @unittest.skipUnless(sys.platform == "darwin", "test weak linking on macOS") | |
| class TestTimeWeaklinking(unittest.TestCase): | |
| # These test cases verify that weak linking support on macOS works | |
| # as expected. These cases only test new behaviour introduced by weak linking, | |
| # regular behaviour is tested by the normal test cases. | |
| # | |
| # See the section on Weak Linking in Mac/README.txt for more information. | |
| def test_clock_functions(self): | |
| import sysconfig | |
| import platform | |
| config_vars = sysconfig.get_config_vars() | |
| var_name = "HAVE_CLOCK_GETTIME" | |
| if var_name not in config_vars or not config_vars[var_name]: | |
| raise unittest.SkipTest(f"{var_name} is not available") | |
| mac_ver = tuple(int(x) for x in platform.mac_ver()[0].split(".")) | |
| clock_names = [ | |
| "CLOCK_MONOTONIC", "clock_gettime", "clock_gettime_ns", "clock_settime", | |
| "clock_settime_ns", "clock_getres"] | |
| if mac_ver >= (10, 12): | |
| for name in clock_names: | |
| self.assertHasAttr(time, name) | |
| else: | |
| for name in clock_names: | |
| self.assertNotHasAttr(time, name) | |
| if __name__ == "__main__": | |
| unittest.main() |