Generic Tests for CappingTransformer

tests/base_tests.py

@@ -113,33 +113,6 @@ def test_columns_non_string_or_list_error(
             uninitialized_transformers[self.transformer_name](**args)
 
 
-class ColumnsFromDictInitTests(GenericInitTests):
-    """
-    Tests for BaseTransformer.init() behaviour specific to when a transformer reads columns from a dict.
-    Note this deliberately avoids starting with "Tests" so that the tests are not run on import.
-    """
-
-    @pytest.mark.parametrize("non_string", [1, True, None])
-    def test_columns_list_element_error(
-        self,
-        non_string,
-        minimal_attribute_dict,
-        uninitialized_transformers,
-    ):
-        """Test an error is raised if columns list contains non-string elements."""
-
-        args = minimal_attribute_dict[self.transformer_name].copy()
-        args["mappings"][non_string] = {1: 2, 3: 4}
-
-        with pytest.raises(
-            TypeError,
-            match=re.escape(
-                f"{self.transformer_name}: each element of columns should be a single (string) column name",
-            ),
-        ):
-            uninitialized_transformers[self.transformer_name](**args)
-
-
 class GenericFitTests:
     """
     Generic tests for transformer.fit().