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Method testLimitDenominator

Lib/test/test_fractions.py:639–651  ·  view source on GitHub ↗
(self)

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637 self.assertEqual(F(0, 6).as_integer_ratio(), (0, 1))
638
639 def testLimitDenominator(self):
640 rpi = F('3.1415926535897932')
641 self.assertEqual(rpi.limit_denominator(10000), F(355, 113))
642 self.assertEqual(-rpi.limit_denominator(10000), F(-355, 113))
643 self.assertEqual(rpi.limit_denominator(113), F(355, 113))
644 self.assertEqual(rpi.limit_denominator(112), F(333, 106))
645 self.assertEqual(F(201, 200).limit_denominator(100), F(1))
646 self.assertEqual(F(201, 200).limit_denominator(101), F(102, 101))
647 self.assertEqual(F(0).limit_denominator(10000), F(0))
648 for i in (0, -1):
649 self.assertRaisesMessage(
650 ValueError, "max_denominator should be at least 1",
651 F(1).limit_denominator, i)
652
653 def testConversions(self):
654 self.assertTypedEquals(-1, math.trunc(F(-11, 10)))

Callers

nothing calls this directly

Calls 4

assertRaisesMessageMethod · 0.95
limit_denominatorMethod · 0.80
FClass · 0.70
assertEqualMethod · 0.45

Tested by

no test coverage detected