Test case for unresolved references while instantiating Encoding

Test case for unresolved references while instantiating Encoding

Author: karsa-mistmere

tests/spec/OpenApiTest.php

@@ -239,4 +239,54 @@ public function testSpecs($openApiFile)
         }
 
     }
+
+    public function testUnresolvedReferencesInEncoding($config, $expectedException)
+    {
+        $yaml = Yaml::parse(<<<'YAML'
+openapi: "3.0.0"
+info:
+  version: 1.0.0
+  title: Encoding test
+paths:
+  /pets:
+    post:
+      summary: Create a pet
+      operationId: createPets
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              type: object
+              properties:
+                pet:
+                  $ref: '#/components/schemas/Pet'
+                petImage:
+                  type: string
+                  format: binary
+            encoding:
+              pet:
+                contentType: application/json
+              petImage:
+                contentType: image/*
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Pet'
+      responses:
+        '201':
+          description: Null response
+components:
+  schemas:
+    Pet:
+      type: object
+      properties:
+        name:
+          type: string
+YAML
+);
+        $openapi = new OpenApi($yaml);
+        $result = $openapi->validate();
+
+        $this->assertEquals([], $openapi->getErrors());
+        $this->assertTrue($result);
+    }
 }