diff options
Diffstat (limited to 'numpy/random/tests/test_generator_mt19937.py')
| -rw-r--r-- | numpy/random/tests/test_generator_mt19937.py | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/numpy/random/tests/test_generator_mt19937.py b/numpy/random/tests/test_generator_mt19937.py index b550cd508..73d915e02 100644 --- a/numpy/random/tests/test_generator_mt19937.py +++ b/numpy/random/tests/test_generator_mt19937.py @@ -1363,10 +1363,22 @@ class TestRandomDist: [5, 1]]) assert_array_equal(actual, desired) - def test_logseries_exceptions(self): - with np.errstate(invalid='ignore'): - assert_raises(ValueError, random.logseries, np.nan) - assert_raises(ValueError, random.logseries, [np.nan] * 10) + def test_logseries_zero(self): + random = Generator(MT19937(self.seed)) + assert random.logseries(0) == 1 + + @pytest.mark.parametrize("value", [np.nextafter(0., -1), 1., np.nan, 5.]) + def test_logseries_exceptions(self, value): + random = Generator(MT19937(self.seed)) + with np.errstate(invalid="ignore"): + with pytest.raises(ValueError): + random.logseries(value) + with pytest.raises(ValueError): + # contiguous path: + random.logseries(np.array([value] * 10)) + with pytest.raises(ValueError): + # non-contiguous path: + random.logseries(np.array([value] * 10)[::2]) def test_multinomial(self): random = Generator(MT19937(self.seed)) |