| from test import support |
| import decimal |
| import enum |
| import locale |
| import math |
| import platform |
| import sys |
| import sysconfig |
| import time |
| import unittest |
| try: |
| import threading |
| except ImportError: |
| threading = None |
| try: |
| import _testcapi |
| except ImportError: |
| _testcapi = None |
| |
| |
| # 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 |
| |
| 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 |
| |
| # 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), |
| ) |
| |
| |
| 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_clock(self): |
| time.clock() |
| |
| info = time.get_clock_info('clock') |
| self.assertTrue(info.monotonic) |
| self.assertFalse(info.adjustable) |
| |
| @unittest.skipUnless(hasattr(time, 'clock_gettime'), |
| 'need time.clock_gettime()') |
| def test_clock_realtime(self): |
| time.clock_gettime(time.CLOCK_REALTIME) |
| |
| @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, '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(self): |
| self.assertRaises(ValueError, time.sleep, -2) |
| self.assertRaises(ValueError, time.sleep, -1) |
| time.sleep(1.2) |
| |
| 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) |
| |
| 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 support.check_warnings(): |
| result = time.strftime("%Y %m %d %H %M %S %w %j", (2000,)+(0,)*8) |
| self.assertEqual(expected, result) |
| |
| 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', 'H', 'I', |
| 'j', 'm', 'M', 'p', 'S', |
| 'U', 'w', 'W', 'x', 'X', 'y', 'Y', 'Z', '%'): |
| format = '%' + directive |
| 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('', '%D') |
| self.assertIs(e.exception.__suppress_context__, True) |
| # additional check for IndexError branch (issue #19545) |
| with self.assertRaises(ValueError) as e: |
| time.strptime('19', '%Y %') |
| self.assertIs(e.exception.__suppress_context__, True) |
| |
| 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): |
| if sys.platform.startswith('aix') and t == -1: |
| # Issue #11188, #19748: mktime() returns -1 on error. On Linux, |
| # the tm_wday field is used as a sentinel () to detect if -1 is |
| # really an error or a valid timestamp. On AIX, tm_wday is |
| # unchanged even on success and so cannot be used as a |
| # sentinel. |
| continue |
| try: |
| tt = time.localtime(t) |
| except (OverflowError, OSError): |
| pass |
| else: |
| self.assertEqual(time.mktime(tt), 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 error |
| # on all platfom. 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) |
| |
| @unittest.skipUnless(hasattr(time, 'monotonic'), |
| 'need time.monotonic') |
| 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) |
| # Issue #20101: On some Windows machines, dt may be slightly low |
| self.assertTrue(0.45 <= dt <= 1.0, 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() |
| |
| 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) |
| |
| @unittest.skipUnless(hasattr(time, 'monotonic'), |
| 'need time.monotonic') |
| @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) |
| |
| def test_get_clock_info(self): |
| clocks = ['clock', 'perf_counter', 'process_time', 'time'] |
| if hasattr(time, 'monotonic'): |
| clocks.append('monotonic') |
| |
| for name in clocks: |
| info = time.get_clock_info(name) |
| #self.assertIsInstance(info, dict) |
| 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): |
| def setUp(self): |
| self.oldloc = locale.setlocale(locale.LC_ALL) |
| |
| def tearDown(self): |
| locale.setlocale(locale.LC_ALL, self.oldloc) |
| |
| def test_bug_3061(self): |
| try: |
| tmp = locale.setlocale(locale.LC_ALL, "fr_FR") |
| except locale.Error: |
| self.skipTest('could not set locale.LC_ALL to fr_FR') |
| # 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) |
| |
| 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 = "strftime() is limited to [1; 9999] with Visual Studio" |
| # Check that it doesn't crash for year > 9999 |
| 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), '12345') |
| self.assertEqual(self.yearstr(123456789), '123456789') |
| self.assertEqual(self.yearstr(TIME_MAXYEAR), 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 + 1900), str(TIME_MINYEAR + 1900)) |
| # Issue #13312: it may return wrong value for year < TIME_MINYEAR + 1900 |
| # Skip the value test, but check that no error is raised |
| self.yearstr(TIME_MINYEAR) |
| # self.assertEqual(self.yearstr(TIME_MINYEAR), str(TIME_MINYEAR)) |
| self.assertRaises(OverflowError, self.yearstr, TIME_MINYEAR - 1) |
| |
| |
| class TestAsctime4dyear(_TestAsctimeYear, _Test4dYear, unittest.TestCase): |
| pass |
| |
| class TestStrftime4dyear(_TestStrftimeYear, _Test4dYear, unittest.TestCase): |
| pass |
| |
| |
| class TestPytime(unittest.TestCase): |
| @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") |
| def test_localtime_timezone(self): |
| |
| # Get the localtime and examine it for the offset and zone. |
| lt = time.localtime() |
| self.assertTrue(hasattr(lt, "tm_gmtoff")) |
| self.assertTrue(hasattr(lt, "tm_zone")) |
| |
| # See if the offset and zone are similar to the module |
| # attributes. |
| if lt.tm_gmtoff is None: |
| self.assertTrue(not hasattr(time, "timezone")) |
| else: |
| self.assertEqual(lt.tm_gmtoff, -[time.timezone, time.altzone][lt.tm_isdst]) |
| if lt.tm_zone is None: |
| self.assertTrue(not hasattr(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) |
| |
| @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") |
| 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) |
| |
| @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") |
| 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 _testcapi module') |
| class CPyTimeTestCase: |
| """ |
| Base class to test the C _PyTime_t API. |
| """ |
| OVERFLOW_SECONDS = None |
| |
| def setUp(self): |
| from _testcapi 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 : |
| context = decimal.getcontext() |
| 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 as exc: |
| 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 _testcapi 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) |
| |
| def test_FromSecondsObject(self): |
| from _testcapi 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)) |
| |
| 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 _testcapi 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(_testcapi, 'PyTime_AsTimespec'), |
| 'need _testcapi.PyTime_AsTimespec') |
| def test_AsTimespec(self): |
| from _testcapi 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) |
| |
| def test_AsMilliseconds(self): |
| from _testcapi import PyTime_AsMilliseconds |
| |
| self.check_int_rounding(PyTime_AsMilliseconds, |
| self.create_decimal_converter(MS_TO_NS), |
| NS_TO_SEC) |
| |
| def test_AsMicroseconds(self): |
| from _testcapi 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 _testcapi import pytime_object_to_time_t |
| |
| self.check_int_rounding(pytime_object_to_time_t, |
| lambda secs: secs, |
| value_filter=self.time_t_filter) |
| |
| self.check_float_rounding(pytime_object_to_time_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 _testcapi import pytime_object_to_timeval |
| |
| self.check_int_rounding(pytime_object_to_timeval, |
| lambda secs: (secs, 0), |
| value_filter=self.time_t_filter) |
| |
| self.check_float_rounding(pytime_object_to_timeval, |
| self.create_converter(SEC_TO_US), |
| value_filter=self.time_t_filter) |
| |
| def test_object_to_timespec(self): |
| from _testcapi import pytime_object_to_timespec |
| |
| self.check_int_rounding(pytime_object_to_timespec, |
| lambda secs: (secs, 0), |
| value_filter=self.time_t_filter) |
| |
| self.check_float_rounding(pytime_object_to_timespec, |
| self.create_converter(SEC_TO_NS), |
| value_filter=self.time_t_filter) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |