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| author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2019-06-08 15:58:11 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-06-08 15:58:11 (GMT) |
| commit | e119b3d136bd94d880bce4b382096f6de3f38062 (patch) | |
| tree | 241356f01ba320f5b0b342e004902e1e40314a17 /Lib/test | |
| parent | 8cc605acdda5aff250ab4c9b524a7560f90ca9f3 (diff) | |
| download | cpython-e119b3d136bd94d880bce4b382096f6de3f38062.zip cpython-e119b3d136bd94d880bce4b382096f6de3f38062.tar.gz cpython-e119b3d136bd94d880bce4b382096f6de3f38062.tar.bz2 | |
bpo-37178: Allow a one argument form of math.perm() (GH-13905)
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_math.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py index 86e3923..adefa07 100644 --- a/Lib/test/test_math.py +++ b/Lib/test/test_math.py @@ -1885,8 +1885,13 @@ class IsCloseTests(unittest.TestCase): self.assertEqual(perm(n, 1), n) self.assertEqual(perm(n, n), factorial(n)) + # Test one argument form + for n in range(20): + self.assertEqual(perm(n), factorial(n)) + self.assertEqual(perm(n, None), factorial(n)) + # Raises TypeError if any argument is non-integer or argument count is - # not 2 + # not 1 or 2 self.assertRaises(TypeError, perm, 10, 1.0) self.assertRaises(TypeError, perm, 10, decimal.Decimal(1.0)) self.assertRaises(TypeError, perm, 10, "1") @@ -1894,7 +1899,7 @@ class IsCloseTests(unittest.TestCase): self.assertRaises(TypeError, perm, decimal.Decimal(10.0), 1) self.assertRaises(TypeError, perm, "10", 1) - self.assertRaises(TypeError, perm, 10) + self.assertRaises(TypeError, perm) self.assertRaises(TypeError, perm, 10, 1, 3) self.assertRaises(TypeError, perm) |