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Diffstat (limited to 'numpy/lib/tests')
| -rw-r--r-- | numpy/lib/tests/test_function_base.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/numpy/lib/tests/test_function_base.py b/numpy/lib/tests/test_function_base.py index ba5b90e8c..d5faed6ae 100644 --- a/numpy/lib/tests/test_function_base.py +++ b/numpy/lib/tests/test_function_base.py @@ -1043,6 +1043,16 @@ class TestAngle(object): assert_array_almost_equal(y, yo, 11) assert_array_almost_equal(z, zo, 11) + def test_subclass(self): + x = np.ma.array([1 + 3j, 1, np.sqrt(2)/2 * (1 + 1j)]) + x[1] = np.ma.masked + expected = np.ma.array([np.arctan(3.0 / 1.0), 0, np.arctan(1.0)]) + expected[1] = np.ma.masked + actual = angle(x) + assert_equal(type(actual), type(expected)) + assert_equal(actual.mask, expected.mask) + assert_equal(actual, expected) + class TestTrimZeros(object): |