TST: raise InvalidIndexError with IntervalIndex.get_value and get_loc (#33938)

Author: Prashant Anand

pandas/tests/indexes/interval/test_indexing.py

@@ -158,6 +158,15 @@ def test_get_loc_decreasing(self, values):
         expected = 0
         assert result == expected
 
+    @pytest.mark.parametrize("key", [[5], (2, 3)])
+    def test_get_loc_non_scalar_errors(self, key):
+        # GH 31117
+        idx = IntervalIndex.from_tuples([(1, 3), (2, 4), (3, 5), (7, 10), (3, 10)])
+
+        msg = str(key)
+        with pytest.raises(InvalidIndexError, match=msg):
+            idx.get_loc(key)
+
 
 class TestGetIndexer:
     @pytest.mark.parametrize(

pandas/tests/indexes/interval/test_interval.py

@@ -19,6 +19,7 @@
 )
 import pandas._testing as tm
 import pandas.core.common as com
+from pandas.core.indexes.base import InvalidIndexError
 
 
 @pytest.fixture(scope="class", params=[None, "foo"])
@@ -857,6 +858,17 @@ def test_is_all_dates(self):
         year_2017_index = pd.IntervalIndex([year_2017])
         assert not year_2017_index.is_all_dates
 
+    @pytest.mark.parametrize("key", [[5], (2, 3)])
+    def test_get_value_non_scalar_errors(self, key):
+        # GH 31117
+        idx = IntervalIndex.from_tuples([(1, 3), (2, 4), (3, 5), (7, 10), (3, 10)])
+        s = pd.Series(range(len(idx)), index=idx)
+
+        msg = str(key)
+        with pytest.raises(InvalidIndexError, match=msg):
+            with tm.assert_produces_warning(FutureWarning):
+                idx.get_value(s, key)
+
 
 def test_dir():
     # GH#27571 dir(interval_index) should not raise