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| author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2019-11-23 10:22:13 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-11-23 10:22:13 (GMT) |
| commit | 041d8b48a2e59fa642b2c5124d78086baf74e339 (patch) | |
| tree | f189a49ce0107fdeef9eeb75e9e6c63fb169e83c /Lib/test | |
| parent | 84b1ff65609c5910b4f838adbe1ead83baae7dbf (diff) | |
| download | cpython-041d8b48a2e59fa642b2c5124d78086baf74e339.zip cpython-041d8b48a2e59fa642b2c5124d78086baf74e339.tar.gz cpython-041d8b48a2e59fa642b2c5124d78086baf74e339.tar.bz2 | |
bpo-38881: choices() raises ValueError when all weights are zero (GH-17362)
Diffstat (limited to 'Lib/test')
| -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 |