diff options
Diffstat (limited to 'Lib/test/test_time.py')
| -rw-r--r-- | Lib/test/test_time.py | 425 |
1 files changed, 328 insertions, 97 deletions
diff --git a/Lib/test/test_time.py b/Lib/test/test_time.py index be7ddcc..0891834 100644 --- a/Lib/test/test_time.py +++ b/Lib/test/test_time.py @@ -1,21 +1,37 @@ from test import support -import time -import unittest +import enum import locale -import sysconfig -import sys 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 -_PyTime_ROUND_DOWN = 0 -_PyTime_ROUND_UP = 1 + +US_TO_NS = 10 ** 3 +MS_TO_NS = 10 ** 6 +SEC_TO_NS = 10 ** 9 + +class _PyTime(enum.IntEnum): + # Round towards minus infinity (-inf) + ROUND_FLOOR = 0 + # Round towards infinity (+inf) + ROUND_CEILING = 1 + +ALL_ROUNDING_METHODS = (_PyTime.ROUND_FLOOR, _PyTime.ROUND_CEILING) class TimeTestCase(unittest.TestCase): @@ -595,112 +611,65 @@ class TestPytime(unittest.TestCase): def test_time_t(self): from _testcapi import pytime_object_to_time_t for obj, time_t, rnd in ( - # Round towards zero - (0, 0, _PyTime_ROUND_DOWN), - (-1, -1, _PyTime_ROUND_DOWN), - (-1.0, -1, _PyTime_ROUND_DOWN), - (-1.9, -1, _PyTime_ROUND_DOWN), - (1.0, 1, _PyTime_ROUND_DOWN), - (1.9, 1, _PyTime_ROUND_DOWN), - # Round away from zero - (0, 0, _PyTime_ROUND_UP), - (-1, -1, _PyTime_ROUND_UP), - (-1.0, -1, _PyTime_ROUND_UP), - (-1.9, -2, _PyTime_ROUND_UP), - (1.0, 1, _PyTime_ROUND_UP), - (1.9, 2, _PyTime_ROUND_UP), + # Round towards minus infinity (-inf) + (0, 0, _PyTime.ROUND_FLOOR), + (-1, -1, _PyTime.ROUND_FLOOR), + (-1.0, -1, _PyTime.ROUND_FLOOR), + (-1.9, -2, _PyTime.ROUND_FLOOR), + (1.0, 1, _PyTime.ROUND_FLOOR), + (1.9, 1, _PyTime.ROUND_FLOOR), + # Round towards infinity (+inf) + (0, 0, _PyTime.ROUND_CEILING), + (-1, -1, _PyTime.ROUND_CEILING), + (-1.0, -1, _PyTime.ROUND_CEILING), + (-1.9, -1, _PyTime.ROUND_CEILING), + (1.0, 1, _PyTime.ROUND_CEILING), + (1.9, 2, _PyTime.ROUND_CEILING), ): self.assertEqual(pytime_object_to_time_t(obj, rnd), time_t) - rnd = _PyTime_ROUND_DOWN + rnd = _PyTime.ROUND_FLOOR for invalid in self.invalid_values: self.assertRaises(OverflowError, pytime_object_to_time_t, invalid, rnd) @support.cpython_only - def test_timeval(self): - from _testcapi import pytime_object_to_timeval - for obj, timeval, rnd in ( - # Round towards zero - (0, (0, 0), _PyTime_ROUND_DOWN), - (-1, (-1, 0), _PyTime_ROUND_DOWN), - (-1.0, (-1, 0), _PyTime_ROUND_DOWN), - (1e-6, (0, 1), _PyTime_ROUND_DOWN), - (1e-7, (0, 0), _PyTime_ROUND_DOWN), - (-1e-6, (-1, 999999), _PyTime_ROUND_DOWN), - (-1e-7, (-1, 999999), _PyTime_ROUND_DOWN), - (-1.2, (-2, 800000), _PyTime_ROUND_DOWN), - (0.9999999, (0, 999999), _PyTime_ROUND_DOWN), - (0.0000041, (0, 4), _PyTime_ROUND_DOWN), - (1.1234560, (1, 123456), _PyTime_ROUND_DOWN), - (1.1234569, (1, 123456), _PyTime_ROUND_DOWN), - (-0.0000040, (-1, 999996), _PyTime_ROUND_DOWN), - (-0.0000041, (-1, 999995), _PyTime_ROUND_DOWN), - (-1.1234560, (-2, 876544), _PyTime_ROUND_DOWN), - (-1.1234561, (-2, 876543), _PyTime_ROUND_DOWN), - # Round away from zero - (0, (0, 0), _PyTime_ROUND_UP), - (-1, (-1, 0), _PyTime_ROUND_UP), - (-1.0, (-1, 0), _PyTime_ROUND_UP), - (1e-6, (0, 1), _PyTime_ROUND_UP), - (1e-7, (0, 1), _PyTime_ROUND_UP), - (-1e-6, (-1, 999999), _PyTime_ROUND_UP), - (-1e-7, (-1, 999999), _PyTime_ROUND_UP), - (-1.2, (-2, 800000), _PyTime_ROUND_UP), - (0.9999999, (1, 0), _PyTime_ROUND_UP), - (0.0000041, (0, 5), _PyTime_ROUND_UP), - (1.1234560, (1, 123457), _PyTime_ROUND_UP), - (1.1234569, (1, 123457), _PyTime_ROUND_UP), - (-0.0000040, (-1, 999996), _PyTime_ROUND_UP), - (-0.0000041, (-1, 999995), _PyTime_ROUND_UP), - (-1.1234560, (-2, 876544), _PyTime_ROUND_UP), - (-1.1234561, (-2, 876543), _PyTime_ROUND_UP), - ): - with self.subTest(obj=obj, round=rnd, timeval=timeval): - self.assertEqual(pytime_object_to_timeval(obj, rnd), timeval) - - rnd = _PyTime_ROUND_DOWN - for invalid in self.invalid_values: - self.assertRaises(OverflowError, - pytime_object_to_timeval, invalid, rnd) - - @support.cpython_only def test_timespec(self): from _testcapi import pytime_object_to_timespec for obj, timespec, rnd in ( - # Round towards zero - (0, (0, 0), _PyTime_ROUND_DOWN), - (-1, (-1, 0), _PyTime_ROUND_DOWN), - (-1.0, (-1, 0), _PyTime_ROUND_DOWN), - (1e-9, (0, 1), _PyTime_ROUND_DOWN), - (1e-10, (0, 0), _PyTime_ROUND_DOWN), - (-1e-9, (-1, 999999999), _PyTime_ROUND_DOWN), - (-1e-10, (-1, 999999999), _PyTime_ROUND_DOWN), - (-1.2, (-2, 800000000), _PyTime_ROUND_DOWN), - (0.9999999999, (0, 999999999), _PyTime_ROUND_DOWN), - (1.1234567890, (1, 123456789), _PyTime_ROUND_DOWN), - (1.1234567899, (1, 123456789), _PyTime_ROUND_DOWN), - (-1.1234567890, (-2, 876543211), _PyTime_ROUND_DOWN), - (-1.1234567891, (-2, 876543210), _PyTime_ROUND_DOWN), - # Round away from zero - (0, (0, 0), _PyTime_ROUND_UP), - (-1, (-1, 0), _PyTime_ROUND_UP), - (-1.0, (-1, 0), _PyTime_ROUND_UP), - (1e-9, (0, 1), _PyTime_ROUND_UP), - (1e-10, (0, 1), _PyTime_ROUND_UP), - (-1e-9, (-1, 999999999), _PyTime_ROUND_UP), - (-1e-10, (-1, 999999999), _PyTime_ROUND_UP), - (-1.2, (-2, 800000000), _PyTime_ROUND_UP), - (0.9999999999, (1, 0), _PyTime_ROUND_UP), - (1.1234567890, (1, 123456790), _PyTime_ROUND_UP), - (1.1234567899, (1, 123456790), _PyTime_ROUND_UP), - (-1.1234567890, (-2, 876543211), _PyTime_ROUND_UP), - (-1.1234567891, (-2, 876543210), _PyTime_ROUND_UP), + # Round towards minus infinity (-inf) + (0, (0, 0), _PyTime.ROUND_FLOOR), + (-1, (-1, 0), _PyTime.ROUND_FLOOR), + (-1.0, (-1, 0), _PyTime.ROUND_FLOOR), + (1e-9, (0, 1), _PyTime.ROUND_FLOOR), + (1e-10, (0, 0), _PyTime.ROUND_FLOOR), + (-1e-9, (-1, 999999999), _PyTime.ROUND_FLOOR), + (-1e-10, (-1, 999999999), _PyTime.ROUND_FLOOR), + (-1.2, (-2, 800000000), _PyTime.ROUND_FLOOR), + (0.9999999999, (0, 999999999), _PyTime.ROUND_FLOOR), + (1.1234567890, (1, 123456789), _PyTime.ROUND_FLOOR), + (1.1234567899, (1, 123456789), _PyTime.ROUND_FLOOR), + (-1.1234567890, (-2, 876543211), _PyTime.ROUND_FLOOR), + (-1.1234567891, (-2, 876543210), _PyTime.ROUND_FLOOR), + # Round towards infinity (+inf) + (0, (0, 0), _PyTime.ROUND_CEILING), + (-1, (-1, 0), _PyTime.ROUND_CEILING), + (-1.0, (-1, 0), _PyTime.ROUND_CEILING), + (1e-9, (0, 1), _PyTime.ROUND_CEILING), + (1e-10, (0, 1), _PyTime.ROUND_CEILING), + (-1e-9, (-1, 999999999), _PyTime.ROUND_CEILING), + (-1e-10, (0, 0), _PyTime.ROUND_CEILING), + (-1.2, (-2, 800000000), _PyTime.ROUND_CEILING), + (0.9999999999, (1, 0), _PyTime.ROUND_CEILING), + (1.1234567890, (1, 123456790), _PyTime.ROUND_CEILING), + (1.1234567899, (1, 123456790), _PyTime.ROUND_CEILING), + (-1.1234567890, (-2, 876543211), _PyTime.ROUND_CEILING), + (-1.1234567891, (-2, 876543211), _PyTime.ROUND_CEILING), ): with self.subTest(obj=obj, round=rnd, timespec=timespec): self.assertEqual(pytime_object_to_timespec(obj, rnd), timespec) - rnd = _PyTime_ROUND_DOWN + rnd = _PyTime.ROUND_FLOOR for invalid in self.invalid_values: self.assertRaises(OverflowError, pytime_object_to_timespec, invalid, rnd) @@ -759,5 +728,267 @@ class TestPytime(unittest.TestCase): self.assertIs(lt.tm_zone, None) +@unittest.skipUnless(_testcapi is not None, + 'need the _testcapi module') +class TestPyTime_t(unittest.TestCase): + def test_FromSeconds(self): + from _testcapi import PyTime_FromSeconds + for seconds in (0, 3, -456, _testcapi.INT_MAX, _testcapi.INT_MIN): + with self.subTest(seconds=seconds): + self.assertEqual(PyTime_FromSeconds(seconds), + seconds * SEC_TO_NS) + + def test_FromSecondsObject(self): + from _testcapi import PyTime_FromSecondsObject + + # Conversion giving the same result for all rounding methods + for rnd in ALL_ROUNDING_METHODS: + for obj, ts in ( + # integers + (0, 0), + (1, SEC_TO_NS), + (-3, -3 * SEC_TO_NS), + + # float: subseconds + (0.0, 0), + (1e-9, 1), + (1e-6, 10 ** 3), + (1e-3, 10 ** 6), + + # float: seconds + (2.0, 2 * SEC_TO_NS), + (123.0, 123 * SEC_TO_NS), + (-7.0, -7 * SEC_TO_NS), + + # nanosecond are kept for value <= 2^23 seconds + (2**22 - 1e-9, 4194303999999999), + (2**22, 4194304000000000), + (2**22 + 1e-9, 4194304000000001), + (2**23 - 1e-9, 8388607999999999), + (2**23, 8388608000000000), + + # start loosing precision for value > 2^23 seconds + (2**23 + 1e-9, 8388608000000002), + + # nanoseconds are lost for value > 2^23 seconds + (2**24 - 1e-9, 16777215999999998), + (2**24, 16777216000000000), + (2**24 + 1e-9, 16777216000000000), + (2**25 - 1e-9, 33554432000000000), + (2**25 , 33554432000000000), + (2**25 + 1e-9, 33554432000000000), + + # close to 2^63 nanoseconds (_PyTime_t limit) + (9223372036, 9223372036 * SEC_TO_NS), + (9223372036.0, 9223372036 * SEC_TO_NS), + (-9223372036, -9223372036 * SEC_TO_NS), + (-9223372036.0, -9223372036 * SEC_TO_NS), + ): + with self.subTest(obj=obj, round=rnd, timestamp=ts): + self.assertEqual(PyTime_FromSecondsObject(obj, rnd), ts) + + with self.subTest(round=rnd): + with self.assertRaises(OverflowError): + PyTime_FromSecondsObject(9223372037, rnd) + PyTime_FromSecondsObject(9223372037.0, rnd) + PyTime_FromSecondsObject(-9223372037, rnd) + PyTime_FromSecondsObject(-9223372037.0, rnd) + + # Conversion giving different results depending on the rounding method + FLOOR = _PyTime.ROUND_FLOOR + CEILING = _PyTime.ROUND_CEILING + for obj, ts, rnd in ( + # close to zero + ( 1e-10, 0, FLOOR), + ( 1e-10, 1, CEILING), + (-1e-10, -1, FLOOR), + (-1e-10, 0, CEILING), + + # test rounding of the last nanosecond + ( 1.1234567899, 1123456789, FLOOR), + ( 1.1234567899, 1123456790, CEILING), + (-1.1234567899, -1123456790, FLOOR), + (-1.1234567899, -1123456789, CEILING), + + # close to 1 second + ( 0.9999999999, 999999999, FLOOR), + ( 0.9999999999, 1000000000, CEILING), + (-0.9999999999, -1000000000, FLOOR), + (-0.9999999999, -999999999, CEILING), + ): + with self.subTest(obj=obj, round=rnd, timestamp=ts): + self.assertEqual(PyTime_FromSecondsObject(obj, rnd), ts) + + def test_AsSecondsDouble(self): + from _testcapi import PyTime_AsSecondsDouble + + for nanoseconds, seconds in ( + # near 1 nanosecond + ( 0, 0.0), + ( 1, 1e-9), + (-1, -1e-9), + + # near 1 second + (SEC_TO_NS + 1, 1.0 + 1e-9), + (SEC_TO_NS, 1.0), + (SEC_TO_NS - 1, 1.0 - 1e-9), + + # a few seconds + (123 * SEC_TO_NS, 123.0), + (-567 * SEC_TO_NS, -567.0), + + # nanosecond are kept for value <= 2^23 seconds + (4194303999999999, 2**22 - 1e-9), + (4194304000000000, 2**22), + (4194304000000001, 2**22 + 1e-9), + + # start loosing precision for value > 2^23 seconds + (8388608000000002, 2**23 + 1e-9), + + # nanoseconds are lost for value > 2^23 seconds + (16777215999999998, 2**24 - 1e-9), + (16777215999999999, 2**24 - 1e-9), + (16777216000000000, 2**24 ), + (16777216000000001, 2**24 ), + (16777216000000002, 2**24 + 2e-9), + + (33554432000000000, 2**25 ), + (33554432000000002, 2**25 ), + (33554432000000004, 2**25 + 4e-9), + + # close to 2^63 nanoseconds (_PyTime_t limit) + (9223372036 * SEC_TO_NS, 9223372036.0), + (-9223372036 * SEC_TO_NS, -9223372036.0), + ): + with self.subTest(nanoseconds=nanoseconds, seconds=seconds): + self.assertEqual(PyTime_AsSecondsDouble(nanoseconds), + seconds) + + def test_timeval(self): + from _testcapi import PyTime_AsTimeval + for rnd in ALL_ROUNDING_METHODS: + for ns, tv in ( + # microseconds + (0, (0, 0)), + (1000, (0, 1)), + (-1000, (-1, 999999)), + + # seconds + (2 * SEC_TO_NS, (2, 0)), + (-3 * SEC_TO_NS, (-3, 0)), + ): + with self.subTest(nanoseconds=ns, timeval=tv, round=rnd): + self.assertEqual(PyTime_AsTimeval(ns, rnd), tv) + + FLOOR = _PyTime.ROUND_FLOOR + CEILING = _PyTime.ROUND_CEILING + for ns, tv, rnd in ( + # nanoseconds + (1, (0, 0), FLOOR), + (1, (0, 1), CEILING), + (-1, (-1, 999999), FLOOR), + (-1, (0, 0), CEILING), + + # seconds + nanoseconds + (1234567001, (1, 234567), FLOOR), + (1234567001, (1, 234568), CEILING), + (-1234567001, (-2, 765432), FLOOR), + (-1234567001, (-2, 765433), CEILING), + ): + with self.subTest(nanoseconds=ns, timeval=tv, round=rnd): + self.assertEqual(PyTime_AsTimeval(ns, rnd), tv) + + @unittest.skipUnless(hasattr(_testcapi, 'PyTime_AsTimespec'), + 'need _testcapi.PyTime_AsTimespec') + def test_timespec(self): + from _testcapi import PyTime_AsTimespec + for ns, ts in ( + # nanoseconds + (0, (0, 0)), + (1, (0, 1)), + (-1, (-1, 999999999)), + + # seconds + (2 * SEC_TO_NS, (2, 0)), + (-3 * SEC_TO_NS, (-3, 0)), + + # seconds + nanoseconds + (1234567890, (1, 234567890)), + (-1234567890, (-2, 765432110)), + ): + with self.subTest(nanoseconds=ns, timespec=ts): + self.assertEqual(PyTime_AsTimespec(ns), ts) + + def test_milliseconds(self): + from _testcapi import PyTime_AsMilliseconds + for rnd in ALL_ROUNDING_METHODS: + for ns, tv in ( + # milliseconds + (1 * MS_TO_NS, 1), + (-2 * MS_TO_NS, -2), + + # seconds + (2 * SEC_TO_NS, 2000), + (-3 * SEC_TO_NS, -3000), + ): + with self.subTest(nanoseconds=ns, timeval=tv, round=rnd): + self.assertEqual(PyTime_AsMilliseconds(ns, rnd), tv) + + FLOOR = _PyTime.ROUND_FLOOR + CEILING = _PyTime.ROUND_CEILING + for ns, ms, rnd in ( + # nanoseconds + (1, 0, FLOOR), + (1, 1, CEILING), + (-1, 0, FLOOR), + (-1, -1, CEILING), + + # seconds + nanoseconds + (1234 * MS_TO_NS + 1, 1234, FLOOR), + (1234 * MS_TO_NS + 1, 1235, CEILING), + (-1234 * MS_TO_NS - 1, -1234, FLOOR), + (-1234 * MS_TO_NS - 1, -1235, CEILING), + ): + with self.subTest(nanoseconds=ns, milliseconds=ms, round=rnd): + self.assertEqual(PyTime_AsMilliseconds(ns, rnd), ms) + + def test_microseconds(self): + from _testcapi import PyTime_AsMicroseconds + for rnd in ALL_ROUNDING_METHODS: + for ns, tv in ( + # microseconds + (1 * US_TO_NS, 1), + (-2 * US_TO_NS, -2), + + # milliseconds + (1 * MS_TO_NS, 1000), + (-2 * MS_TO_NS, -2000), + + # seconds + (2 * SEC_TO_NS, 2000000), + (-3 * SEC_TO_NS, -3000000), + ): + with self.subTest(nanoseconds=ns, timeval=tv, round=rnd): + self.assertEqual(PyTime_AsMicroseconds(ns, rnd), tv) + + FLOOR = _PyTime.ROUND_FLOOR + CEILING = _PyTime.ROUND_CEILING + for ns, ms, rnd in ( + # nanoseconds + (1, 0, FLOOR), + (1, 1, CEILING), + (-1, 0, FLOOR), + (-1, -1, CEILING), + + # seconds + nanoseconds + (1234 * US_TO_NS + 1, 1234, FLOOR), + (1234 * US_TO_NS + 1, 1235, CEILING), + (-1234 * US_TO_NS - 1, -1234, FLOOR), + (-1234 * US_TO_NS - 1, -1235, CEILING), + ): + with self.subTest(nanoseconds=ns, milliseconds=ms, round=rnd): + self.assertEqual(PyTime_AsMicroseconds(ns, rnd), ms) + + if __name__ == "__main__": unittest.main() |