Group testing modules (#3014)

* move security content from spring-security-rest-full

* swagger update

* move query language to new module

* rename spring-security-rest-full to spring-rest-full

* group persistence modules

* group testing modules

* try fix conflict

testing-modules/mockserver/src/main/java/com/baeldung/mock/server/ExpectationCallbackHandler.java

@@ -0,0 +1,23 @@
+package com.baeldung.mock.server;
+
+import org.mockserver.mock.action.ExpectationCallback;
+import org.mockserver.model.HttpRequest;
+import org.mockserver.model.HttpResponse;
+
+import static org.mockserver.model.HttpResponse.notFoundResponse;
+import static org.mockserver.model.HttpResponse.response;
+
+
+public class ExpectationCallbackHandler implements ExpectationCallback {
+
+    public HttpResponse handle(HttpRequest httpRequest) {
+        if (httpRequest.getPath().getValue().endsWith("/callback")) {
+            return httpResponse;
+        } else {
+            return notFoundResponse();
+        }
+    }
+
+    public static HttpResponse httpResponse = response()
+            .withStatusCode(200);
+}