cover another error case

Author: eli-bl

end_to_end_tests/generator_errors_and_warnings/test_invalid_unions.py

@@ -12,24 +12,16 @@ def warnings(self):
 """
 components:
   schemas:
-    ModelType1:
-      type: object
-      properties:
-        modelType: {"type": "string"}
-        name: {"type": "string"}
-      required: ["modelType"]
-    ModelType2:
-      type: object
-      properties:
-        modelType: {"type": "string"}
-        name: {"type": "string"}
-      required: ["modelType"]
     UnionWithInvalidReference:
       anyOf:
         - $ref: "#/components/schemas/DoesntExist"
     UnionWithInvalidDefault:
       type: ["number", "integer"]
       default: aaa
+    UnionWithMalformedVariant:
+      anyOf:
+        - type: string
+        - type: array  # invalid because no items
 """
         )
 
@@ -39,6 +31,9 @@ def test_invalid_reference(self, warnings):
     def test_invalid_default(self, warnings):
         assert_bad_schema_warning(warnings, "UnionWithInvalidDefault", "Invalid int value: aaa")
 
+    def test_invalid_property(self, warnings):
+        assert_bad_schema_warning(warnings, "UnionWithMalformedVariant", "Invalid property in union")
+
 
 class TestInvalidDiscriminators:
     @pytest.fixture(scope="class")