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TST: add tests for Series/DF logical operations nan propagation #29531

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Merged
merged 3 commits into from
Nov 12, 2019
Merged

TST: add tests for Series/DF logical operations nan propagation #29531

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bd84cd5
add Series/DF logical operations nan propagation tests
ganevgv Nov 10, 2019
ad6350a
change A, B, C to left, right, expected
ganevgv Nov 10, 2019
d7d5dce
add tests for and
ganevgv Nov 11, 2019
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36 changes: 36 additions & 0 deletions pandas/tests/frame/test_operators.py
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Original file line number Diff line number Diff line change
Expand Up @@ -218,6 +218,42 @@ def test_logical_with_nas(self):
expected = Series([True, True])
tm.assert_series_equal(result, expected)

@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):
# GH 13896
result = op(DataFrame(left), DataFrame(right))
expected = DataFrame(expected)

tm.assert_frame_equal(result, expected)


class TestDataFrameOperators:
@pytest.mark.parametrize(
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36 changes: 36 additions & 0 deletions pandas/tests/series/test_operators.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,42 @@ def test_logical_operators_bool_dtype_with_empty(self):
expected = s_tft
tm.assert_series_equal(res, expected)

@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):
# GH 13896
result = op(Series(left), Series(right))
expected = Series(expected)

tm.assert_series_equal(result, expected)

def test_logical_operators_int_dtype_with_int_dtype(self):
# GH#9016: support bitwise op for integer types

Expand Down