Add test cases for dict of dict and list of dict

Author: ottmar-zittlau

modules/openapi-generator/src/test/resources/3_0/python/petstore-with-fake-endpoints-models-for-testing.yaml

@@ -2137,6 +2137,12 @@ components:
             type: object
             additionalProperties:
               type: string
+        map_of_map_non_primitive_property:
+          type: object
+          additionalProperties:
+            type: object
+            additionalProperties:
+              $ref: '#/components/schemas/Pet'
     MixedPropertiesAndAdditionalPropertiesClass:
       type: object
       properties:
@@ -2705,6 +2711,15 @@ components:
             type: array
             items:
               $ref: "#/components/schemas/Tag"
+    ArrayOfMapModel:
+      type: object
+      properties:
+        array_of_map_property:
+          type: array
+          items:
+            type: object
+            additionalProperties:
+              $ref: "#/components/schemas/Tag"
     ArrayOfArrayOfModel:
       type: object
       properties: