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bpo-37819: Add Fraction.as_integer_ratio() (GH-15212) (GH-15215)

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(cherry picked from commit f03b4c8a48)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
This commit is contained in:
Miss Islington (bot) 2019-08-11 15:02:23 -07:00 • committed by Raymond Hettinger
parent 9500bbe937
commit 5ba1cb0393
4 changed files with 23 additions and 0 deletions
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6
Lib/test/test_fractions.py
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@ -302,6 +302,12 @@ class FractionTest(unittest.TestCase):
ValueError, "cannot convert NaN to integer ratio",
F.from_decimal, Decimal("snan"))
def test_as_integer_ratio(self):
self.assertEqual(F(4, 6).as_integer_ratio(), (2, 3))
self.assertEqual(F(-4, 6).as_integer_ratio(), (-2, 3))
self.assertEqual(F(4, -6).as_integer_ratio(), (-2, 3))
self.assertEqual(F(0, 6).as_integer_ratio(), (0, 1))
def testLimitDenominator(self):
rpi = F('3.1415926535897932')
self.assertEqual(rpi.limit_denominator(10000), F(355, 113))