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authorjbCodeHub <besselingcodehub@gmail.com>2021-02-28 09:58:54 +0100
committerGitHub <noreply@github.com>2021-02-28 09:58:54 +0100
commit592b71c8cd10ef3cf9bccebb6c3ed0198f105484 (patch)
tree00c9fa219be28ef288357b7e87192d5b42b7a686 /numpy/polynomial/tests/test_polyutils.py
parent1932e4bdc460975d8b35ae8351e037d26e5ee6f8 (diff)
downloadnumpy-592b71c8cd10ef3cf9bccebb6c3ed0198f105484.tar.gz
TST: Branch coverage improvement for `np.polynomial` (#18499)
* added tests for vander_nd in test_polyutils to cover some of the missed branches * added tests to polyline and vander to improve branch coverage * added tests to test_legendre.py to improve branch coverage
Diffstat (limited to 'numpy/polynomial/tests/test_polyutils.py')
-rw-r--r--numpy/polynomial/tests/test_polyutils.py15
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: