Bug: unmarshalling not working when there is no type: object.

Author: Wim-De-Clercq

tests/integration/data/v3.0/petstore.yaml

@@ -287,17 +287,16 @@ components:
           type: integer
           format: int64
     PetCreate:
-      type: object
-      x-model: PetCreate
+#      type: object
       allOf:
         - $ref: "#/components/schemas/PetCreatePartOne"
-        - $ref: "#/components/schemas/PetCreatePartTwo"
-      oneOf:
-        - $ref: "#/components/schemas/Cat"
-        - $ref: "#/components/schemas/Bird"
+        - type: object
+          properties:
+            birth_date:
+              type: string
+              format: date
     PetCreatePartOne:
       type: object
-      x-model: PetCreatePartOne
       required:
         - name
       properties:

tests/integration/validation/test_petstore.py

@@ -1,5 +1,6 @@
 import json
 from base64 import b64encode
+from datetime import date
 from datetime import datetime
 from uuid import UUID
 
@@ -550,6 +551,39 @@ def test_get_pets_param_coordinates(self, spec):
 
         assert body is None
 
+    def test_birth_date(self, spec):
+        host_url = "https://staging.gigantic-server.com/v1"
+        path_pattern = "/v1/pets"
+        headers = {
+            "api-key": self.api_key_encoded,
+        }
+        cookies = {
+            "user": "123",
+            "userdata": {
+                "name": "user1",
+            },
+        }
+
+        data_json = {
+            "name": "required",
+            "birth_date": "2022-09-18"
+        }
+        data = json.dumps(data_json)
+
+        request = MockRequest(
+            host_url,
+            "POST",
+            "/pets",
+            path_pattern=path_pattern,
+            data=data,
+            headers=headers,
+            cookies=cookies,
+        )
+
+        body = spec_validate_body(spec, request)
+
+        assert isinstance(body["birth_date"], date)
+
     def test_post_birds(self, spec, spec_dict):
         host_url = "https://staging.gigantic-server.com/v1"
         path_pattern = "/v1/pets"