Add propertyNames to Draft6 patternProperties, do not skip patternProperties test

Author: manycoding

jsonschema/tests/test_validators.py

@@ -1107,8 +1107,6 @@ def test_invalid_pattern(self):
         with self.assertRaises(SchemaError):
             self.Validator.check_schema({"pattern": "\q"})
 
-    @unittest.skip("This test fails but it shouldn't, see"
-                   "github.com/Julian/jsonschema/pull/425#issuecomment-425667814")
     def test_invalid_patternProperty(self):
         with self.assertRaises(SchemaError):
             self.Validator.check_schema(