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TST: Added iloc tests for casting from object to numeric dtypes for duplicate columns #41154

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Merged
merged 7 commits into from
Apr 30, 2021
Merged

TST: Added iloc tests for casting from object to numeric dtypes for duplicate columns #41154

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40a89fc
TST: Added iloc tests for casting from object to numeric dtypes for d…
isaac-chung Apr 25, 2021
a81064a
Merge branch 'master' of https://github.com/pandas-dev/pandas into Is…
isaac-chung Apr 25, 2021
06eac9f
Added gh reference
isaac-chung Apr 25, 2021
c24c185
Check df with tm.assert_frame_equal
isaac-chung Apr 25, 2021
10bb12e
fix spacing
isaac-chung Apr 25, 2021
d7600b3
parametrize over dtypes
isaac-chung Apr 25, 2021
ff7ed6e
pre-commit hooks
isaac-chung Apr 25, 2021
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15 changes: 15 additions & 0 deletions pandas/tests/indexing/test_iloc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1186,6 +1186,21 @@ def test_iloc_setitem_series_duplicate_columns(self):
df.iloc[:, 0] = df.iloc[:, 0].astype(np.float64)
assert df.dtypes.iloc[2] == np.int64

@pytest.mark.parametrize(
["dtypes", "init_value", "expected_value"],
[("int64", "0", 0), ("float", "1.2", 1.2)],
)
def test_iloc_setitem_dtypes_duplicate_columns(
self, dtypes, init_value, expected_value
):
# GH#22035
df = DataFrame([[init_value, "str", "str2"]], columns=["a", "b", "b"])
df.iloc[:, 0] = df.iloc[:, 0].astype(dtypes)
expected_df = DataFrame(
[[expected_value, "str", "str2"]], columns=["a", "b", "b"]
)
tm.assert_frame_equal(df, expected_df)


class TestILocCallable:
def test_frame_iloc_getitem_callable(self):
Expand Down