| 860 | self.assertRaises(OverflowError, day.__mul__, -INF) |
| 861 | |
| 862 | def test_microsecond_rounding(self): |
| 863 | td = timedelta |
| 864 | eq = self.assertEqual |
| 865 | |
| 866 | # Single-field rounding. |
| 867 | eq(td(milliseconds=0.4/1000), td(0)) # rounds to 0 |
| 868 | eq(td(milliseconds=-0.4/1000), td(0)) # rounds to 0 |
| 869 | eq(td(milliseconds=0.5/1000), td(microseconds=0)) |
| 870 | eq(td(milliseconds=-0.5/1000), td(microseconds=-0)) |
| 871 | eq(td(milliseconds=0.6/1000), td(microseconds=1)) |
| 872 | eq(td(milliseconds=-0.6/1000), td(microseconds=-1)) |
| 873 | eq(td(milliseconds=1.5/1000), td(microseconds=2)) |
| 874 | eq(td(milliseconds=-1.5/1000), td(microseconds=-2)) |
| 875 | eq(td(seconds=0.5/10**6), td(microseconds=0)) |
| 876 | eq(td(seconds=-0.5/10**6), td(microseconds=-0)) |
| 877 | eq(td(seconds=1/2**7), td(microseconds=7812)) |
| 878 | eq(td(seconds=-1/2**7), td(microseconds=-7812)) |
| 879 | |
| 880 | # Rounding due to contributions from more than one field. |
| 881 | us_per_hour = 3600e6 |
| 882 | us_per_day = us_per_hour * 24 |
| 883 | eq(td(days=.4/us_per_day), td(0)) |
| 884 | eq(td(hours=.2/us_per_hour), td(0)) |
| 885 | eq(td(days=.4/us_per_day, hours=.2/us_per_hour), td(microseconds=1)) |
| 886 | |
| 887 | eq(td(days=-.4/us_per_day), td(0)) |
| 888 | eq(td(hours=-.2/us_per_hour), td(0)) |
| 889 | eq(td(days=-.4/us_per_day, hours=-.2/us_per_hour), td(microseconds=-1)) |
| 890 | |
| 891 | # Test for a patch in Issue 8860 |
| 892 | eq(td(microseconds=0.5), 0.5*td(microseconds=1.0)) |
| 893 | eq(td(microseconds=0.5)//td.resolution, 0.5*td.resolution//td.resolution) |
| 894 | |
| 895 | def test_massive_normalization(self): |
| 896 | td = timedelta(microseconds=-1) |