https://github.com/python/cpython/commit/2946c544ead6630df8c2f37de4a1248528e65d81
commit: 2946c544ead6630df8c2f37de4a1248528e65d81
branch: 3.14
author: Hugo van Kemenade <[email protected]>
committer: hugovk <[email protected]>
date: 2026-07-29T19:36:53+03:00
summary:
[3.14] gh-149221: Add missing `test_binomialvariate_log_zero` (#154879)
files:
M Lib/test/test_random.py
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
index 3739fe0ac393b3..c231126d58c0bc 100644
--- a/Lib/test/test_random.py
+++ b/Lib/test/test_random.py
@@ -1074,6 +1074,13 @@ def test_avg_std(self):
self.assertAlmostEqual(s2/(N-1), sigmasqrd, places=2,
msg='%s%r' % (variate.__name__, args))
+ def test_binomialvariate_log_zero(self):
+ # gh-149222: Variety random() return 0.0 no input Error
+ with unittest.mock.patch.object(random.Random, 'random',
side_effect=[0.0] + [0.5] * 20):
+ result = random.binomialvariate(10, 0.5)
+ self.assertIsInstance(result, int)
+ self.assertIn(result, range(11))
+
def test_binomialvariate_btrs_random_zero(self):
for p, expected in ((0.25, 25), (0.75, 75)):
with self.subTest(p=p):
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