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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2019-06-08 16:17:33 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2019-06-08 16:17:33 (GMT) |
| commit | feaceaafe816e95c4aff15eab0bea6dc2bbfe4fd (patch) | |
| tree | 1809f17e0075595a64c31ff9ee19cb1b5c605a15 /Lib/test/test_math.py | |
| parent | 6324ac1293b2cf71559869b88f89f510f9a62a8e (diff) | |
| download | cpython-feaceaafe816e95c4aff15eab0bea6dc2bbfe4fd.zip cpython-feaceaafe816e95c4aff15eab0bea6dc2bbfe4fd.tar.gz cpython-feaceaafe816e95c4aff15eab0bea6dc2bbfe4fd.tar.bz2 | |
bpo-37178: Allow a one argument form of math.perm() (GH-13905) (GH-13919)
(cherry picked from commit e119b3d136bd94d880bce4b382096f6de3f38062)
Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
Diffstat (limited to 'Lib/test/test_math.py')
| -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) |