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__init__.py	0 B	-rw-r--r--	2024-04-12 10:40:16	Edit Del
__pycache__	-	drwxr-xr-x	2024-04-12 10:40:21	Del
common.py	1.83 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
conftest.py	2.58 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
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test_alter_axes.py	873 B	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_api.py	12.15 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_arithmetic.py	71.44 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_arrow_interface.py	1.24 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_block_internals.py	16.05 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_constructors.py	120.75 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_cumulative.py	2.33 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_iteration.py	4.96 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_logical_ops.py	7.18 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_nonunique_indexes.py	11.66 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_npfuncs.py	2.69 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_query_eval.py	53.62 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_reductions.py	75.33 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_repr.py	16.54 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_stack_unstack.py	95.09 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_subclass.py	27.23 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_ufunc.py	10.31 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_unary.py	6.45 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del
test_validate.py	1.07 KB	-rw-r--r--	2024-04-12 10:40:16	Edit Del

Editing: test_logical_ops.py (7.18 KB)

import operator
import re

import numpy as np
import pytest

from pandas import (
    CategoricalIndex,
    DataFrame,
    Interval,
    Series,
    isnull,
)
import pandas._testing as tm


class TestDataFrameLogicalOperators:
    # &, |, ^

    @pytest.mark.parametrize(
        "left, right, op, expected",
        [
            (
                [True, False, np.nan],
                [True, False, True],
                operator.and_,
                [True, False, False],
            ),
            (
                [True, False, True],
                [True, False, np.nan],
                operator.and_,
                [True, False, False],
            ),
            (
                [True, False, np.nan],
                [True, False, True],
                operator.or_,
                [True, False, False],
            ),
            (
                [True, False, True],
                [True, False, np.nan],
                operator.or_,
                [True, False, True],
            ),
        ],
    )
    def test_logical_operators_nans(self, left, right, op, expected, frame_or_series):
        # GH#13896
        result = op(frame_or_series(left), frame_or_series(right))
        expected = frame_or_series(expected)

        tm.assert_equal(result, expected)

    def test_logical_ops_empty_frame(self):
        # GH#5808
        # empty frames, non-mixed dtype
        df = DataFrame(index=[1])

        result = df & df
        tm.assert_frame_equal(result, df)

        result = df | df
        tm.assert_frame_equal(result, df)

        df2 = DataFrame(index=[1, 2])
        result = df & df2
        tm.assert_frame_equal(result, df2)

        dfa = DataFrame(index=[1], columns=["A"])

        result = dfa & dfa
        expected = DataFrame(False, index=[1], columns=["A"])
        tm.assert_frame_equal(result, expected)

    def test_logical_ops_bool_frame(self):
        # GH#5808
        df1a_bool = DataFrame(True, index=[1], columns=["A"])

        result = df1a_bool & df1a_bool
        tm.assert_frame_equal(result, df1a_bool)

        result = df1a_bool | df1a_bool
        tm.assert_frame_equal(result, df1a_bool)

    def test_logical_ops_int_frame(self):
        # GH#5808
        df1a_int = DataFrame(1, index=[1], columns=["A"])
        df1a_bool = DataFrame(True, index=[1], columns=["A"])

        result = df1a_int | df1a_bool
        tm.assert_frame_equal(result, df1a_bool)

        # Check that this matches Series behavior
        res_ser = df1a_int["A"] | df1a_bool["A"]
        tm.assert_series_equal(res_ser, df1a_bool["A"])

    def test_logical_ops_invalid(self, using_infer_string):
        # GH#5808

        df1 = DataFrame(1.0, index=[1], columns=["A"])
        df2 = DataFrame(True, index=[1], columns=["A"])
        msg = re.escape("unsupported operand type(s) for |: 'float' and 'bool'")
        with pytest.raises(TypeError, match=msg):
            df1 | df2

        df1 = DataFrame("foo", index=[1], columns=["A"])
        df2 = DataFrame(True, index=[1], columns=["A"])
        msg = re.escape("unsupported operand type(s) for |: 'str' and 'bool'")
        if using_infer_string:
            import pyarrow as pa

            with pytest.raises(pa.lib.ArrowNotImplementedError, match="|has no kernel"):
                df1 | df2
        else:
            with pytest.raises(TypeError, match=msg):
                df1 | df2

    def test_logical_operators(self):
        def _check_bin_op(op):
            result = op(df1, df2)
            expected = DataFrame(
                op(df1.values, df2.values), index=df1.index, columns=df1.columns
            )
            assert result.values.dtype == np.bool_
            tm.assert_frame_equal(result, expected)

        def _check_unary_op(op):
            result = op(df1)
            expected = DataFrame(op(df1.values), index=df1.index, columns=df1.columns)
            assert result.values.dtype == np.bool_
            tm.assert_frame_equal(result, expected)

        df1 = {
            "a": {"a": True, "b": False, "c": False, "d": True, "e": True},
            "b": {"a": False, "b": True, "c": False, "d": False, "e": False},
            "c": {"a": False, "b": False, "c": True, "d": False, "e": False},
            "d": {"a": True, "b": False, "c": False, "d": True, "e": True},
            "e": {"a": True, "b": False, "c": False, "d": True, "e": True},
        }

        df2 = {
            "a": {"a": True, "b": False, "c": True, "d": False, "e": False},
            "b": {"a": False, "b": True, "c": False, "d": False, "e": False},
            "c": {"a": True, "b": False, "c": True, "d": False, "e": False},
            "d": {"a": False, "b": False, "c": False, "d": True, "e": False},
            "e": {"a": False, "b": False, "c": False, "d": False, "e": True},
        }

        df1 = DataFrame(df1)
        df2 = DataFrame(df2)

        _check_bin_op(operator.and_)
        _check_bin_op(operator.or_)
        _check_bin_op(operator.xor)

        _check_unary_op(operator.inv)  # TODO: belongs elsewhere

    @pytest.mark.filterwarnings("ignore:Downcasting object dtype arrays:FutureWarning")
    def test_logical_with_nas(self):
        d = DataFrame({"a": [np.nan, False], "b": [True, True]})

        # GH4947
        # bool comparisons should return bool
        result = d["a"] | d["b"]
        expected = Series([False, True])
        tm.assert_series_equal(result, expected)

        # GH4604, automatic casting here
        result = d["a"].fillna(False) | d["b"]
        expected = Series([True, True])
        tm.assert_series_equal(result, expected)

        msg = "The 'downcast' keyword in fillna is deprecated"
        with tm.assert_produces_warning(FutureWarning, match=msg):
            result = d["a"].fillna(False, downcast=False) | d["b"]
        expected = Series([True, True])
        tm.assert_series_equal(result, expected)

    def test_logical_ops_categorical_columns(self):
        # GH#38367
        intervals = [Interval(1, 2), Interval(3, 4)]
        data = DataFrame(
            [[1, np.nan], [2, np.nan]],
            columns=CategoricalIndex(
                intervals, categories=intervals + [Interval(5, 6)]
            ),
        )
        mask = DataFrame(
            [[False, False], [False, False]], columns=data.columns, dtype=bool
        )
        result = mask | isnull(data)
        expected = DataFrame(
            [[False, True], [False, True]],
            columns=CategoricalIndex(
                intervals, categories=intervals + [Interval(5, 6)]
            ),
        )
        tm.assert_frame_equal(result, expected)

    def test_int_dtype_different_index_not_bool(self):
        # GH 52500
        df1 = DataFrame([1, 2, 3], index=[10, 11, 23], columns=["a"])
        df2 = DataFrame([10, 20, 30], index=[11, 10, 23], columns=["a"])
        result = np.bitwise_xor(df1, df2)
        expected = DataFrame([21, 8, 29], index=[10, 11, 23], columns=["a"])
        tm.assert_frame_equal(result, expected)

        result = df1 ^ df2
        tm.assert_frame_equal(result, expected)

    def test_different_dtypes_different_index_raises(self):
        # GH 52538
        df1 = DataFrame([1, 2], index=["a", "b"])
        df2 = DataFrame([3, 4], index=["b", "c"])
        with pytest.raises(TypeError, match="unsupported operand type"):
            df1 & df2