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TST: add regression test for MultiIndex with IntervalIndex level #27572

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Merged
jreback merged 1 commit into from Jul 25, 2019
Merged

TST: add regression test for MultiIndex with IntervalIndex level #27572

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35 changes: 35 additions & 0 deletions pandas/tests/indexing/interval/test_interval.py
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Original file line number Diff line number Diff line change
Expand Up @@ -112,3 +112,38 @@ def test_loc_getitem_frame(self):
# partial missing
with pytest.raises(KeyError, match="^$"):
df.loc[[10, 4]]


class TestIntervalIndexInsideMultiIndex:
def test_mi_intervalindex_slicing_with_scalar(self):
# GH#27456
idx = pd.MultiIndex.from_arrays(
[
pd.Index(["FC", "FC", "FC", "FC", "OWNER", "OWNER", "OWNER", "OWNER"]),
pd.Index(
["RID1", "RID1", "RID2", "RID2", "RID1", "RID1", "RID2", "RID2"]
),
pd.IntervalIndex.from_arrays(
[0, 1, 10, 11, 0, 1, 10, 11], [1, 2, 11, 12, 1, 2, 11, 12]
),
]
)

idx.names = ["Item", "RID", "MP"]
df = pd.DataFrame({"value": [1, 2, 3, 4, 5, 6, 7, 8]})
df.index = idx
query_df = pd.DataFrame(
{
"Item": ["FC", "OWNER", "FC", "OWNER", "OWNER"],
"RID": ["RID1", "RID1", "RID1", "RID2", "RID2"],
"MP": [0.2, 1.5, 1.6, 11.1, 10.9],
}
)

query_df = query_df.sort_index()

idx = pd.MultiIndex.from_arrays([query_df.Item, query_df.RID, query_df.MP])
query_df.index = idx
result = df.value.loc[query_df.index]
expected = pd.Series([1, 6, 2, 8, 7], index=idx, name="value")
tm.assert_series_equal(result, expected)