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| author | Christian Heimes <christian@cheimes.de> | 2008-01-03 22:32:26 +0000 |
|---|---|---|
| committer | Christian Heimes <christian@cheimes.de> | 2008-01-03 22:32:26 +0000 |
| commit | 78526013ffe64ddfa5dccdc736837f75a695cdc2 (patch) | |
| tree | 0b5168a20cf58ec3604769cefac8adb96467dffa /Lib/test/test_math.py | |
| parent | 4d80cb18b7fc2faccf7dc06fb9b906236b19eebb (diff) | |
| download | cpython-78526013ffe64ddfa5dccdc736837f75a695cdc2.tar.gz | |
Added copysign(x, y) function to the math module
Diffstat (limited to 'Lib/test/test_math.py')
| -rw-r--r-- | Lib/test/test_math.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py index d2da59bb96..f5bf1a3f98 100644 --- a/Lib/test/test_math.py +++ b/Lib/test/test_math.py @@ -229,6 +229,13 @@ class MathTests(unittest.TestCase): self.ftest('tanh(0)', math.tanh(0), 0) self.ftest('tanh(1)+tanh(-1)', math.tanh(1)+math.tanh(-1), 0) + def testCopysign(self): + self.assertEqual(math.copysign(1, 42), 1.0) + self.assertEqual(math.copysign(0., 42), 0.0) + self.assertEqual(math.copysign(1., -42), -1.0) + self.assertEqual(math.copysign(3, 0.), 3.0) + self.assertEqual(math.copysign(4., -0.), -4.0) + def testIsnan(self): self.assert_(math.isnan(float("nan"))) self.assert_(math.isnan(float("inf")* 0.)) |