openapi-processor/openapi-processor-spring#126, test distinct consumes/produces

(cherry picked from commit 77b0be3)

Author: hauner

src/test/groovy/com/github/hauner/openapi/micronaut/writer/java/MappingAnnotationWriterSpec.groovy

@@ -138,6 +138,48 @@ class MappingAnnotationWriterSpec extends Specification {
         target.toString () == """@Get(uri = "${endpoint.path}", consumes = {"multipart/form-data"})"""
     }
 
+    void "writes unique 'consumes' parameter" () {
+        def endpoint = createEndpoint (path: '/foo', method: HttpMethod.GET, responses: [
+            '204' : [new EmptyResponse ()]
+        ], requestBodies: [
+            new RequestBody('body', 'foo/in', new StringDataType (),
+                false, false),
+            new RequestBody('body', 'foo/in', new StringDataType (),
+                false, false),
+            new RequestBody('body', 'foo/in', new StringDataType (),
+                false, false)
+        ])
+
+        when:
+        writer.write (target, endpoint, endpoint.endpointResponses.first ())
+
+        then:
+        target.toString ().contains ('consumes = {"foo/in"}')
+    }
+
+    void "writes unique 'produces' parameters" () {
+        def endpoint = createEndpoint (path: '/foo', method: HttpMethod.GET, responses: [
+            '200' : [
+                new Response ('foo/out', new StringDataType (), null)
+            ],
+            '400' : [
+                new Response ('foo/out', new StringDataType (), null)
+            ],
+            '401' : [
+                new Response ('foo/out', new StringDataType (), null)
+            ],
+            '403': [
+                new Response ('foo/out', new StringDataType (), null)
+            ]
+        ])
+
+        when:
+        writer.write (target, endpoint, endpoint.endpointResponses.first ())
+
+        then:
+        target.toString ().contains ('produces = {"foo/out"}')
+    }
+
     @Deprecated
     private Endpoint createEndpoint (Map properties) {
         def ep = new Endpoint(