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TST: added test for fixed bug gh#50372 #54701

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Merged
merged 3 commits into from
Aug 23, 2023
Merged

TST: added test for fixed bug gh#50372 #54701

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f74c27c
added test for bug gh#50372
DRiXD Aug 23, 2023
15c87fd
cleaned code to fit pre-commit
DRiXD Aug 23, 2023
1bdb01b
moved test to better fitting location
DRiXD Aug 23, 2023
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16 changes: 16 additions & 0 deletions pandas/tests/frame/indexing/test_indexing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1252,6 +1252,22 @@ def test_type_error_multiindex(self):
result = dg["x", 0]
tm.assert_series_equal(result, expected)

def test_tuple_string_column_names(self):
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Can you move this to pandas/tests/indexing/multiindex/test_getitem.py?

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Done @mroeschke

# GH#50372
mi = MultiIndex.from_tuples(
[("a", "aa"), ("a", "ab"), ("b", "ba"), ("b", "bb")]
)
df = DataFrame([range(0, 4), range(1, 5), range(2, 6)], columns=mi)
df["single_index"] = 0

df_flat = df.copy()
df_flat.columns = df_flat.columns.to_flat_index()
df_flat["new_single_index"] = 0

df_flat = df_flat[[("a", "aa"), "new_single_index"]]

assert df_flat.columns.equals(Index([("a", "aa"), "new_single_index"]))
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Can you construct the full pandas object result of df_flat and use tm.assert_equal?

result = df_flat[[("a", "aa"), "new_single_index"]]
expected = ...
tm.assert_equal(result, expected)

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Also done (: @mroeschke


def test_getitem_interval_index_partial_indexing(self):
# GH#36490
df = DataFrame(
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