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bpo-44018: random.seed() no longer mutates its inputs (GH-25856) (GH-25864)

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Miss Islington (bot) 2021-05-03 16:36:14 -07:00 • committed by GitHub
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commit e733e9951d
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3 changed files with 7 additions and 2 deletions
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Lib/test/test_random.py
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@ -57,6 +57,11 @@ class TestBasicOps:
self.assertRaises(TypeError, self.gen.seed, 1, 2, 3, 4)
self.assertRaises(TypeError, type(self.gen), [])
def test_seed_no_mutate_bug_44018(self):
a = bytearray(b'1234')
self.gen.seed(a)
self.assertEqual(a, bytearray(b'1234'))
@unittest.mock.patch('random._urandom') # os.urandom
def test_seed_when_randomness_source_not_found(self, urandom_mock):
# Random.seed() uses time.time() when an operating system specific