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Diffstat (limited to 'numpy/polynomial/tests/test_polyutils.py')
| -rw-r--r-- | numpy/polynomial/tests/test_polyutils.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/numpy/polynomial/tests/test_polyutils.py b/numpy/polynomial/tests/test_polyutils.py index 1b27f53b5..cc630790d 100644 --- a/numpy/polynomial/tests/test_polyutils.py +++ b/numpy/polynomial/tests/test_polyutils.py @@ -40,6 +40,21 @@ class TestMisc: assert_equal(pu.trimcoef(coef, 1), coef[:-3]) assert_equal(pu.trimcoef(coef, 2), [0]) + def test_vander_nd_exception(self): + # n_dims != len(points) + assert_raises(ValueError, pu._vander_nd, (), (1, 2, 3), [90]) + # n_dims != len(degrees) + assert_raises(ValueError, pu._vander_nd, (), (), [90.65]) + # n_dims == 0 + assert_raises(ValueError, pu._vander_nd, (), (), []) + + def test_div_zerodiv(self): + # c2[-1] == 0 + assert_raises(ZeroDivisionError, pu._div, pu._div, (1, 2, 3), [0]) + + def test_pow_too_large(self): + # power > maxpower + assert_raises(ValueError, pu._pow, (), [1, 2, 3], 5, 4) class TestDomain: |