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""" Tests for np.foo applied to DataFrame, not necessarily ufuncs. """ import numpy as np from pandas import ( Categorical, DataFrame, ) import pandas._testing as tm class TestAsArray: def test_asarray_homogenous(self): df = DataFrame({"A": Categorical([1, 2]), "B": Categorical([1, 2])}) result = np.asarray(df) # may change from object in the future expected = np.array([[1, 1], [2, 2]], dtype="object") tm.assert_numpy_array_equal(result, expected) def test_np_sqrt(self, float_frame): with np.errstate(all="ignore"): result = np.sqrt(float_frame) assert isinstance(result, type(float_frame)) assert result.index is float_frame.index assert result.columns is float_frame.columns tm.assert_frame_equal(result, float_frame.apply(np.sqrt))
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