33 lines
925 B
Python
33 lines
925 B
Python
# Authors: Gael Varoquaux <gael.varoquaux@normalesup.org>
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# Justin Vincent
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# Lars Buitinck
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# License: BSD 3 clause
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import numpy as np
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import pytest
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from sklearn.utils._testing import assert_array_equal
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from sklearn.utils.fixes import _object_dtype_isnan, delayed
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@pytest.mark.parametrize("dtype, val", ([object, 1], [object, "a"], [float, 1]))
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def test_object_dtype_isnan(dtype, val):
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X = np.array([[val, np.nan], [np.nan, val]], dtype=dtype)
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expected_mask = np.array([[False, True], [True, False]])
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mask = _object_dtype_isnan(X)
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assert_array_equal(mask, expected_mask)
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def test_delayed_deprecation():
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"""Check that we issue the FutureWarning regarding the deprecation of delayed."""
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def func(x):
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return x
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warn_msg = "The function `delayed` has been moved from `sklearn.utils.fixes`"
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with pytest.warns(FutureWarning, match=warn_msg):
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delayed(func)
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