Fix CI.

Author: Oleh Kozynets

pandas/core/arrays/categorical.py

@@ -1074,8 +1074,8 @@ def remove_unused_categories(self, inplace=no_default):
         """
         if inplace is not no_default:
             warn(
-                "The `inplace` parameter in pandas.Categorical.remove_unused_categories"
-                " is deprecated and will be removed in a future version.",
+                "The `inplace` parameter in pandas.Categorical.remove_unused_categories "
+                "is deprecated and will be removed in a future version.",
                 FutureWarning,
                 stacklevel=2,
             )

pandas/tests/series/accessors/test_cat_accessor.py

@@ -81,7 +81,10 @@ def test_cat_accessor_updates_on_inplace(self):
         ser = Series(list("abc")).astype("category")
         return_value = ser.drop(0, inplace=True)
         assert return_value is None
-        return_value = ser.cat.remove_unused_categories(inplace=True)
+
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+            return_value = ser.cat.remove_unused_categories(inplace=True)
+
         assert return_value is None
         assert len(ser.cat.categories) == 2