Add additionalProperties to Schema object (#43)

Author: tyzhnenko

openapidocs/v3.py

@@ -3,6 +3,7 @@
 version 3.
 https://swagger.io/specification/
 """
+
 from abc import ABC
 from dataclasses import dataclass
 from enum import Enum
@@ -118,6 +119,7 @@ class Schema(OpenAPIElement):
     format: Union[None, str, ValueFormat] = None
     required: Optional[List[str]] = None
     properties: Optional[Dict[str, Union["Schema", "Reference"]]] = None
+    additional_properties: Union[None, bool, "Schema", "Reference"] = None
     default: Optional[Any] = None
     deprecated: Optional[bool] = None
     example: Any = None

tests/test_v3.py

@@ -92,8 +92,7 @@ class FooParent:
 
 class TestItem:
     @abstractmethod
-    def get_instance(self) -> Any:
-        ...
+    def get_instance(self) -> Any: ...
 
     def expected_yaml(self) -> str:
         return dedent(self.yaml()).strip()
@@ -102,12 +101,10 @@ def expected_json(self) -> str:
         return dedent(self.json()).strip()
 
     @abstractmethod
-    def json(self) -> str:
-        ...
+    def json(self) -> str: ...
 
     @abstractmethod
-    def yaml(self) -> str:
-        ...
+    def yaml(self) -> str: ...
 
 
 class ParameterExample1(TestItem):
@@ -2050,6 +2047,49 @@ def json(self) -> str:
         """
 
 
+class ResponseExample2(TestItem):
+    def get_instance(self) -> Any:
+        return Response(
+            description="A simple string response",
+            content={
+                "text/plain": MediaType(
+                    schema=Schema(
+                        type="object",
+                        additional_properties=Schema(type="string"),
+                    )
+                )
+            },
+        )
+
+    def yaml(self) -> str:
+        return """
+        description: A simple string response
+        content:
+            text/plain:
+                schema:
+                    type: object
+                    additionalProperties:
+                        type: string
+        """
+
+    def json(self) -> str:
+        return """
+        {
+            "description": "A simple string response",
+            "content": {
+                "text/plain": {
+                    "schema": {
+                        "type": "object",
+                        "additionalProperties": {
+                            "type": "string"
+                        }
+                    }
+                }
+            }
+        }
+        """
+
+
 class RequestBodyExample1(TestItem):
     def get_instance(self) -> Any:
         return RequestBody(