diff options
Diffstat (limited to 'Lib/test/datetimetester.py')
| -rw-r--r-- | Lib/test/datetimetester.py | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py index 38f3b8f19b..85036aa7d8 100644 --- a/Lib/test/datetimetester.py +++ b/Lib/test/datetimetester.py @@ -1289,12 +1289,18 @@ class TestDate(HarmlessMixedComparison, unittest.TestCase): self.assertTrue(self.theclass.min) self.assertTrue(self.theclass.max) - def test_strftime_out_of_range(self): - # For nasty technical reasons, we can't handle years before 1000. - cls = self.theclass - self.assertEqual(cls(1000, 1, 1).strftime("%Y"), "1000") - for y in 1, 49, 51, 99, 100, 999: - self.assertRaises(ValueError, cls(y, 1, 1).strftime, "%Y") + def test_strftime_y2k(self): + for y in (1, 49, 70, 99, 100, 999, 1000, 1970): + d = self.theclass(y, 1, 1) + # 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 d.strftime("%Y") != '%04d' % y: + # Year 42 returns '42', not padded + self.assertEqual(d.strftime("%Y"), '%d' % y) + # '0042' is obtained anyway + self.assertEqual(d.strftime("%4Y"), '%04d' % y) def test_replace(self): cls = self.theclass |