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Issue #1996: float.as_integer_ratio() should return fraction in lowest terms.

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This commit is contained in:
Raymond Hettinger 2008-02-01 21:30:23 +00:00
parent a51f61b555
commit 04c96d52a4
2 changed files with 26 additions and 85 deletions
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8
Lib/test/test_builtin.py
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@ -689,6 +689,14 @@ class BuiltinTest(unittest.TestCase):
self.assertRaises(TypeError, float, Foo4(42))
def test_floatasratio(self):
for f, ratio in [
(0.875, (7, 8)),
(-0.875, (-7, 8)),
(0.0, (0, 1)),
(11.5, (23, 2)),
]:
self.assertEqual(f.as_integer_ratio(), ratio)
R = rational.Rational
self.assertEqual(R(0, 1),
R(*float(0.0).as_integer_ratio()))