diff options
Diffstat (limited to 'Lib/test/test_time.py')
| -rw-r--r-- | Lib/test/test_time.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Lib/test/test_time.py b/Lib/test/test_time.py index 1a4d873a57c..b8721a234f9 100644 --- a/Lib/test/test_time.py +++ b/Lib/test/test_time.py @@ -371,6 +371,14 @@ class TimeTestCase(unittest.TestCase): @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() @@ -379,6 +387,7 @@ class TimeTestCase(unittest.TestCase): # 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) |