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import numpy as np
from pandas import (
Categorical,
Series,
)
import pandas._testing as tm
class TestCategoricalComparisons:
def test_categorical_nan_equality(self):
cat = Series(Categorical(["a", "b", "c", np.nan]))
expected = Series([True, True, True, False])
result = cat == cat
tm.assert_series_equal(result, expected)
def test_categorical_tuple_equality(self):
# GH 18050
ser = Series([(0, 0), (0, 1), (0, 0), (1, 0), (1, 1)])
expected = Series([True, False, True, False, False])
result = ser == (0, 0)
tm.assert_series_equal(result, expected)
result = ser.astype("category") == (0, 0)
tm.assert_series_equal(result, expected)