diff options
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_format.py | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Lib/test/test_format.py b/Lib/test/test_format.py index f8f5420..bd159f5 100644 --- a/Lib/test/test_format.py +++ b/Lib/test/test_format.py @@ -312,6 +312,23 @@ class FormatTest(unittest.TestCase): def test_main(): support.run_unittest(FormatTest) + def test_precision(self): + INT_MAX = 2147483647 + + f = 1.2 + self.assertEqual(format(f, ".0f"), "1") + self.assertEqual(format(f, ".3f"), "1.200") + with self.assertRaises(ValueError) as cm: + format(f, ".%sf" % (INT_MAX + 1)) + self.assertEqual(str(cm.exception), "precision too big") + + c = complex(f) + self.assertEqual(format(f, ".0f"), "1") + self.assertEqual(format(f, ".3f"), "1.200") + with self.assertRaises(ValueError) as cm: + format(f, ".%sf" % (INT_MAX + 1)) + self.assertEqual(str(cm.exception), "precision too big") + if __name__ == "__main__": unittest.main() |