schema properties validation recursion fix

openapi_spec_validator/schemas/utils.py

@@ -7,9 +7,12 @@
 from typing import Tuple
 
 if sys.version_info >= (3, 9):
-    from importlib.resources import as_file, files
+    from importlib.resources import as_file
+    from importlib.resources import files
 else:
-    from importlib_resources import as_file, files
+    from importlib_resources import as_file
+    from importlib_resources import files
+
 from jsonschema_spec.readers import FilePathReader
 
 

openapi_spec_validator/validation/validators.py

@@ -65,6 +65,7 @@ def __init__(
         self.resolver_handlers = resolver_handlers
 
         self.operation_ids_registry: Optional[List[str]] = None
+        self.schema_ids_registry: Optional[List[int]] = None
         self.resolver = None
 
     def validate(
@@ -82,6 +83,7 @@ def iter_errors(
         self, instance: Mapping[Hashable, Any], spec_url: str = ""
     ) -> Iterator[ValidationError]:
         self.operation_ids_registry = []
+        self.schema_ids_registry = []
         self.resolver = self._get_resolver(spec_url, instance)
 
         yield from self.schema_validator.iter_errors(instance)
@@ -248,7 +250,12 @@ def _iter_schema_errors(
         if not hasattr(schema.content(), "__getitem__"):
             return
 
-        schema_type = schema.getkey("type")
+        assert self.schema_ids_registry is not None
+        schema_id = id(schema.content())
+        if schema_id in self.schema_ids_registry:
+            return
+        self.schema_ids_registry.append(schema_id)
+
         nested_properties = []
         if "allOf" in schema:
             all_of = schema / "allOf"
@@ -294,7 +301,7 @@ def _iter_schema_errors(
             )
 
         if "properties" in schema:
-            props = schema /"properties"
+            props = schema / "properties"
             for _, prop_schema in props.items():
                 yield from self._iter_schema_errors(
                     prop_schema,

tests/integration/data/v3.0/property-recursive.yaml

@@ -0,0 +1,16 @@
+openapi: 3.0.0
+info:
+  version: '1.0.0'
+  title: 'Some Schema'
+paths: {}
+components:
+  schemas:    
+    SomeDataType:
+      type: object
+      properties:
+        id:
+          type: integer
+        prop1:
+          $ref: '#/components/schemas/SomeDataType'
+        prop2:
+          type: string

tests/integration/validation/test_exceptions.py

@@ -456,7 +456,9 @@ def test_parameter_custom_format_checker_not_found(self, validator_v30):
         errors_list = list(errors)
         assert errors_list == []
 
-    def test_parameter_default_value_custom_format_invalid(self, validator_v30):
+    def test_parameter_default_value_custom_format_invalid(
+        self, validator_v30
+    ):
         from openapi_schema_validator import oas30_format_checker
 
         @oas30_format_checker.checks("custom")
@@ -498,6 +500,4 @@ def validate(to_validate) -> bool:
         errors_list = list(errors)
         assert len(errors_list) == 1
         assert errors_list[0].__class__ == OpenAPIValidationError
-        assert errors_list[0].message == (
-            "'invalid' is not a 'custom'"
-        )
+        assert errors_list[0].message == ("'invalid' is not a 'custom'")

tests/integration/validation/test_validators.py

@@ -66,6 +66,7 @@ def local_test_suite_file_path(self, test_file):
             "petstore.yaml",
             "petstore-separate/spec/openapi.yaml",
             "parent-reference/openapi.yaml",
+            "property-recursive.yaml",
         ],
     )
     def test_valid(self, factory, validator_v30, spec_file):