fix tests after refactor

src/main/java/mops/gruppen2/domain/Aggregate.java

@@ -8,9 +8,9 @@ import java.lang.reflect.Method;
 /**
  * Repräsentiert viele Events als aggregiertes Objekt.
  */
+@Getter
 public abstract class Aggregate {
 
-    @Getter
     protected long id;
 
     /**

src/main/java/mops/gruppen2/domain/Group.java

@@ -25,6 +25,7 @@ public class Group extends Aggregate {
     private void applyEvent(CreateGroupEvent event) {
         title = event.getGroupTitle();
         description = event.getGroupDescription();
+        id = event.getGroup_id();
     }
 
     private void applyEvent(UpdateRoleEvent event) {

src/main/java/mops/gruppen2/service/GroupService.java

@@ -1,9 +1,9 @@
 package mops.gruppen2.service;
 
 import mops.gruppen2.domain.Group;
-import mops.gruppen2.domain.event.CreateGroupEvent;
 import mops.gruppen2.domain.event.Event;
 import org.springframework.stereotype.Service;
+
 import java.util.List;
 
 @Service
@@ -16,8 +16,8 @@ public class GroupService {
      * @param eventList Die restlichen Events für diese Gruppe
      * @return Gruppe auf aktuellem Stand
      */
-    Group buildGroupFromEvents(CreateGroupEvent event, List<Event> eventList) {
-        Group newGroup = new Group(event);
+    Group buildGroupFromEvents(List<Event> eventList) {
+        Group newGroup = new Group();
 
         eventList.forEach(newGroup::applyEvent);