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Diffstat (limited to 'Lib/test/test_random.py')
| -rw-r--r-- | Lib/test/test_random.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py index f59c565..2c8c8e8 100644 --- a/Lib/test/test_random.py +++ b/Lib/test/test_random.py @@ -241,6 +241,11 @@ class TestBasicOps: choices = self.gen.choices choices(population=[1, 2], weights=[1e-323, 1e-323], k=5000) + def test_choices_with_all_zero_weights(self): + # See issue #38881 + with self.assertRaises(ValueError): + self.gen.choices('AB', [0.0, 0.0]) + def test_gauss(self): # Ensure that the seed() method initializes all the hidden state. In # particular, through 2.2.1 it failed to reset a piece of state used |