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author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2019-02-28 17:16:25 (GMT) |
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committer | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2019-02-28 17:16:25 (GMT) |
commit | ef17fdbc1c274dc84c2f611c40449ab84824607e (patch) | |
tree | 10619b6016709e2339455421d15c4b9bac2fd2c4 /Lib/test | |
parent | ae2ea33d5da34a777e77d489b700ff45d753934f (diff) | |
download | cpython-ef17fdbc1c274dc84c2f611c40449ab84824607e.zip cpython-ef17fdbc1c274dc84c2f611c40449ab84824607e.tar.gz cpython-ef17fdbc1c274dc84c2f611c40449ab84824607e.tar.bz2 |
bpo-36018: Add special value tests and make minor tweaks to the docs (GH-12096)
https://bugs.python.org/issue36018
Diffstat (limited to 'Lib/test')
-rw-r--r-- | Lib/test/test_statistics.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_statistics.py b/Lib/test/test_statistics.py index d35cdd8..4adc5e4 100644 --- a/Lib/test/test_statistics.py +++ b/Lib/test/test_statistics.py @@ -2113,6 +2113,10 @@ class TestNormalDist(unittest.TestCase): Y = NormalDist(100, 0) with self.assertRaises(statistics.StatisticsError): Y.pdf(90) + # Special values + self.assertEqual(X.pdf(float('-Inf')), 0.0) + self.assertEqual(X.pdf(float('Inf')), 0.0) + self.assertTrue(math.isnan(X.pdf(float('NaN')))) def test_cdf(self): NormalDist = statistics.NormalDist @@ -2127,6 +2131,10 @@ class TestNormalDist(unittest.TestCase): Y = NormalDist(100, 0) with self.assertRaises(statistics.StatisticsError): Y.cdf(90) + # Special values + self.assertEqual(X.cdf(float('-Inf')), 0.0) + self.assertEqual(X.cdf(float('Inf')), 1.0) + self.assertTrue(math.isnan(X.cdf(float('NaN')))) def test_properties(self): X = statistics.NormalDist(100, 15) |