Refactor interval index get_loc test

Move the test from indexing/test_loc to index/interval/test_interval.

Author: samuelsinayoko

pandas/tests/indexes/interval/test_interval.py

@@ -435,6 +435,14 @@ def test_get_loc_value(self):
         idx = IntervalIndex.from_arrays([0, 2], [1, 3])
         pytest.raises(KeyError, idx.get_loc, 1.5)
 
+        # GH25087, test get_loc returns key error for interval indexes
+        msg = 'key is hashable but of incorrect type'
+        with pytest.raises(KeyError, match=msg):
+            idx.get_loc('a')
+        idx = pd.interval_range(0, 1.0)
+        with pytest.raises(KeyError, match=msg):
+            idx.get_loc('a')
+
     # To be removed, replaced by test_interval_new.py (see #16316, #16386)
     def slice_locs_cases(self, breaks):
         # TODO: same tests for more index types

pandas/tests/indexing/test_loc.py

@@ -778,9 +778,3 @@ def test_loc_setitem_empty_append_raises(self):
         msg = "cannot copy sequence with size 2 to array axis with dimension 0"
         with pytest.raises(ValueError, match=msg):
             df.loc[0:2, 'x'] = data
-
-    def test_loc_getitem_interval_index(self):
-        """ GH25087, test get_loc returns key error for interval indexes"""
-        idx = pd.interval_range(0, 1.0)
-        with pytest.raises(KeyError):
-            idx.get_loc('gg')