diff options
Diffstat (limited to 'Lib/test/test_float.py')
| -rw-r--r-- | Lib/test/test_float.py | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py index 4e918fb..3ad1402 100644 --- a/Lib/test/test_float.py +++ b/Lib/test/test_float.py @@ -309,6 +309,14 @@ class IEEEFormatTestCase(unittest.TestCase): self.assertRaises(ValueError, format, 1e-100, format_spec) self.assertRaises(ValueError, format, -1e-100, format_spec) + # issue 3382: 'f' and 'F' with inf's and nan's + self.assertEqual('{0:f}'.format(INF), 'inf') + self.assertEqual('{0:F}'.format(INF), 'INF') + self.assertEqual('{0:f}'.format(-INF), '-inf') + self.assertEqual('{0:F}'.format(-INF), '-INF') + self.assertEqual('{0:f}'.format(NAN), 'nan') + self.assertEqual('{0:F}'.format(NAN), 'NAN') + @unittest.skipUnless(float.__getformat__("double").startswith("IEEE"), "test requires IEEE 754 doubles") def test_format_testfile(self): @@ -321,8 +329,10 @@ class IEEEFormatTestCase(unittest.TestCase): lhs, rhs = map(str.strip, line.split('->')) fmt, arg = lhs.split() - self.assertEqual(fmt % float(arg), rhs) - self.assertEqual(fmt % -float(arg), '-' + rhs) + arg = float(arg) + self.assertEqual(fmt % arg, rhs) + if not math.isnan(arg) and copysign(1.0, arg) > 0.0: + self.assertEqual(fmt % -arg, '-' + rhs) def test_issue5864(self): self.assertEquals(format(123.456, '.4'), '123.5') |