from pandas import (
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DataFrame,
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Series,
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)
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import pandas._testing as tm
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|
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class TestDataFrameCount:
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def test_count(self):
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# corner case
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frame = DataFrame()
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ct1 = frame.count(1)
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assert isinstance(ct1, Series)
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ct2 = frame.count(0)
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assert isinstance(ct2, Series)
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# GH#423
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df = DataFrame(index=range(10))
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result = df.count(1)
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expected = Series(0, index=df.index)
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tm.assert_series_equal(result, expected)
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df = DataFrame(columns=range(10))
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result = df.count(0)
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expected = Series(0, index=df.columns)
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tm.assert_series_equal(result, expected)
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df = DataFrame()
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result = df.count()
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expected = Series(dtype="int64")
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tm.assert_series_equal(result, expected)
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def test_count_objects(self, float_string_frame):
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dm = DataFrame(float_string_frame._series)
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df = DataFrame(float_string_frame._series)
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tm.assert_series_equal(dm.count(), df.count())
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tm.assert_series_equal(dm.count(1), df.count(1))
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