import operator
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import numpy as np
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import pytest
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import pandas._testing as tm
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from pandas.core.ops.array_ops import (
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comparison_op,
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na_logical_op,
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)
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def test_na_logical_op_2d():
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left = np.arange(8).reshape(4, 2)
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right = left.astype(object)
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right[0, 0] = np.nan
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# Check that we fall back to the vec_binop branch
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with pytest.raises(TypeError, match="unsupported operand type"):
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operator.or_(left, right)
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result = na_logical_op(left, right, operator.or_)
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expected = right
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tm.assert_numpy_array_equal(result, expected)
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def test_object_comparison_2d():
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left = np.arange(9).reshape(3, 3).astype(object)
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right = left.T
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result = comparison_op(left, right, operator.eq)
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expected = np.eye(3).astype(bool)
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tm.assert_numpy_array_equal(result, expected)
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# Ensure that cython doesn't raise on non-writeable arg, which
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# we can get from np.broadcast_to
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right.flags.writeable = False
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result = comparison_op(left, right, operator.ne)
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tm.assert_numpy_array_equal(result, ~expected)
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