multi types schema format unmarshal fix

openapi_core/unmarshalling/schemas/unmarshallers.py

@@ -140,34 +140,15 @@ def _unmarshal_properties(
 
 class MultiTypeUnmarshaller(PrimitiveUnmarshaller):
     def __call__(self, value: Any) -> Any:
-        unmarshaller = self._get_best_unmarshaller(value)
+        primitive_type = self.schema_validator.get_primitive_type(value)
+        unmarshaller = self.schema_unmarshaller.get_type_unmarshaller(
+            primitive_type
+        )
         return unmarshaller(value)
 
-    @property
-    def type(self) -> List[str]:
-        types = self.schema.getkey("type", ["any"])
-        assert isinstance(types, list)
-        return types
-
-    def _get_best_unmarshaller(self, value: Any) -> "PrimitiveUnmarshaller":
-        for schema_type in self.type:
-            result = self.schema_validator.type_validator(
-                value, type_override=schema_type
-            )
-            if not result:
-                continue
-            result = self.schema_validator.format_validator(value)
-            if not result:
-                continue
-            return self.schema_unmarshaller.get_type_unmarshaller(schema_type)
-
-        raise UnmarshallerError("Unmarshaller not found for type(s)")
-
 
 class AnyUnmarshaller(MultiTypeUnmarshaller):
-    @property
-    def type(self) -> List[str]:
-        return self.schema_unmarshaller.types_unmarshaller.get_types()
+    pass
 
 
 class TypesUnmarshaller:
@@ -187,7 +168,7 @@ def __init__(
     def get_types(self) -> List[str]:
         return list(self.unmarshallers.keys())
 
-    def get_unmarshaller(
+    def get_unmarshaller_cls(
         self,
         schema_type: Optional[Union[Iterable[str], str]],
     ) -> Type["PrimitiveUnmarshaller"]:
@@ -222,8 +203,8 @@ def unmarshal(self, schema_format: str, value: Any) -> Any:
             return value
         try:
             return format_unmarshaller(value)
-        except (ValueError, TypeError) as exc:
-            raise FormatUnmarshalError(value, schema_format, exc)
+        except (AttributeError, ValueError, TypeError) as exc:
+            return value
 
     def get_unmarshaller(
         self, schema_format: str
@@ -272,7 +253,7 @@ def unmarshal(self, value: Any) -> Any:
         typed = type_unmarshaller(value)
         schema_format = self.find_format(value)
         if schema_format is None:
-            return typed
+             return typed
         # ignore incompatible formats
         if not (
             isinstance(value, str)
@@ -281,19 +262,32 @@ def unmarshal(self, value: Any) -> Any:
             (isinstance(value, bytes) and schema_format in ["binary", "byte"])
         ):
             return typed
-        return self.formats_unmarshaller.unmarshal(schema_format, typed)
+
+        format_unmarshaller = self.get_format_unmarshaller(schema_format)
+        if format_unmarshaller is None:
+            return typed
+        try:
+            return format_unmarshaller(typed)
+        except (AttributeError, ValueError, TypeError):
+            return typed
 
     def get_type_unmarshaller(
         self,
         schema_type: Optional[Union[Iterable[str], str]],
     ) -> PrimitiveUnmarshaller:
-        klass = self.types_unmarshaller.get_unmarshaller(schema_type)
+        klass = self.types_unmarshaller.get_unmarshaller_cls(schema_type)
         return klass(
             self.schema,
             self.schema_validator,
             self,
         )
 
+    def get_format_unmarshaller(
+        self,
+        schema_format: str,
+    ) -> Optional[FormatUnmarshaller]:
+        return self.formats_unmarshaller.get_unmarshaller(schema_format)
+
     def evolve(self, schema: Spec) -> "SchemaUnmarshaller":
         cls = self.__class__
 
@@ -305,17 +299,10 @@ def evolve(self, schema: Spec) -> "SchemaUnmarshaller":
         )
 
     def find_format(self, value: Any) -> Optional[str]:
-        for schema in self.iter_valid_schemas(value):
-            if "format" in schema:
+        primitive_type = self.schema_validator.get_primitive_type(value)
+        if primitive_type != "string":
+            return None
+        for schema in self.schema_validator.iter_valid_schemas(value):
+            if "format" in schema and schema.getkey("type") == primitive_type:
                 return str(schema.getkey("format"))
         return None
-
-    def iter_valid_schemas(self, value: Any) -> Iterator[Spec]:
-        yield self.schema
-
-        one_of_schema = self.schema_validator.get_one_of_schema(value)
-        if one_of_schema is not None:
-            yield one_of_schema
-
-        yield from self.schema_validator.iter_any_of_schemas(value)
-        yield from self.schema_validator.iter_all_of_schemas(value)

openapi_core/validation/schemas/validators.py

@@ -78,6 +78,22 @@ def format_validator_callable(self) -> FormatValidator:
 
         return lambda x: True
 
+    def get_primitive_type(self, value: Any) -> str:
+        schema_types = self.schema.getkey("type")
+        if isinstance(schema_types, str):
+            return schema_types
+        if schema_types is None:
+            schema_types = sorted(self.validator.TYPE_CHECKER._type_checkers)
+        assert isinstance(schema_types, list)
+        for schema_type in schema_types:
+            result = self.type_validator(value, type_override=schema_type)
+            if not result:
+                continue
+            result = self.format_validator(value)
+            if not result:
+                continue
+            return schema_type
+
     def get_one_of_schema(
         self,
         value: Any,
@@ -133,3 +149,13 @@ def iter_all_of_schemas(
                 log.warning("invalid allOf schema found")
             else:
                 yield subschema
+
+    def iter_valid_schemas(self, value: Any) -> Iterator[Spec]:
+        yield self.schema
+
+        one_of_schema = self.schema_validator.get_one_of_schema(value)
+        if one_of_schema is not None:
+            yield one_of_schema
+
+        yield from self.schema_validator.iter_any_of_schemas(value)
+        yield from self.schema_validator.iter_all_of_schemas(value)

tests/integration/unmarshalling/test_unmarshallers.py

@@ -2057,6 +2057,27 @@ def test_nultiple_types_invalid(self, unmarshallers_factory, types, value):
         assert len(exc_info.value.schema_errors) == 1
         assert "is not of type" in exc_info.value.schema_errors[0].message
 
+    @pytest.mark.parametrize(
+        "types,format,value,expected",
+        [
+            (["string", "null"], "date", None, None),
+            (["string", "null"], "date", "2018-12-13", date(2018, 12, 13)),
+        ],
+    )
+    def test_multiple_types_format_valid_or_ignored(
+        self, unmarshallers_factory, types, format, value, expected
+    ):
+        schema = {
+            "type": types,
+            "format": format,
+        }
+        spec = Spec.from_dict(schema, validator=None)
+        unmarshaller = unmarshallers_factory.create(spec)
+
+        result = unmarshaller.unmarshal(value)
+
+        assert result == expected
+
     def test_any_null(self, unmarshallers_factory):
         schema = {}
         spec = Spec.from_dict(schema, validator=None)