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| author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2019-02-23 22:19:01 -0800 |
|---|---|---|
| committer | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2019-02-23 22:19:01 -0800 |
| commit | 79fbcc597dfd039d3261fffcb519b5ec5a18df9d (patch) | |
| tree | 9d56ae7f0a317d315533aac7ae2efd425a9efb05 /Lib/test/test_statistics.py | |
| parent | e895de3e7f3cc2f7213b87621cfe9812ea4343f0 (diff) | |
| download | cpython-git-79fbcc597dfd039d3261fffcb519b5ec5a18df9d.tar.gz | |
bpo-36018: Make __pos__ return a distinct instance of NormDist (GH-12009)
https://bugs.python.org/issue36018
Diffstat (limited to 'Lib/test/test_statistics.py')
| -rw-r--r-- | Lib/test/test_statistics.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Lib/test/test_statistics.py b/Lib/test/test_statistics.py index a65fbe8dd2..9549240f90 100644 --- a/Lib/test/test_statistics.py +++ b/Lib/test/test_statistics.py @@ -2128,6 +2128,18 @@ class TestNormalDist(unittest.TestCase): with self.assertRaises(statistics.StatisticsError): Y.cdf(90) + def test_unary_operations(self): + NormalDist = statistics.NormalDist + X = NormalDist(100, 12) + Y = +X + self.assertIsNot(X, Y) + self.assertEqual(X.mu, Y.mu) + self.assertEqual(X.sigma, Y.sigma) + Y = -X + self.assertIsNot(X, Y) + self.assertEqual(X.mu, -Y.mu) + self.assertEqual(X.sigma, Y.sigma) + def test_same_type_addition_and_subtraction(self): NormalDist = statistics.NormalDist X = NormalDist(100, 12) |