added deserialization tests

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

@@ -8,6 +8,7 @@ import mops.gruppen2.domain.event.Event;
 import org.springframework.stereotype.Service;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -20,41 +21,6 @@ public class GroupService {
         this.eventService = eventService;
     }
 
-    /**
-     * Konstruiert eine vollständige Gruppe aus Events, welche dieselbe Gruppe betreffen.
-     *
-     * @param eventList Die restlichen Events für diese Gruppe
-     * @return Gruppe auf aktuellem Stand
-     */
-    Group buildGroupFromEvents(List<Event> eventList) throws EventException {
-        Group newGroup = new Group();
-
-        try {
-            if (!(eventList.get(0) instanceof CreateGroupEvent)) {
-                throw new GroupDoesNotExistException("Die Gruppe existiert nicht");
-            } else {
-                newGroup.applyEvent(eventList.get(0));
-                eventList.remove(0);
-            }
-            for (Event event : eventList) {
-                if (!(newGroup.getId() > 0)) {
-                    throw new GroupDoesNotExistException("Die Gruppe existiert nicht");
-                }
-                newGroup.applyEvent(event);
-            }
-        } catch (EventException e) {
-            if (e instanceof GroupDoesNotExistException) {
-                throw e;
-            }
-            e.printStackTrace();
-        }
-
-        if (newGroup.getId() < 0) {
-            return null;
-        }
-        return newGroup;
-    }
-
     public List<Group> projectEventList(Map<Long, Group> groupMap, List<Event> events) {
         for (Event event : events) {
             if (event instanceof CreateGroupEvent) {
@@ -77,4 +43,8 @@ public class GroupService {
 
         return new ArrayList<>(groupMap.values());
     }
+
+    public List<Group> projectEventList(List<Event> events) {
+        return projectEventList(new HashMap<>(), events);
+    }
 }

src/test/java/mops/gruppen2/builder/EventBuilder.java

@@ -21,7 +21,7 @@ public class EventBuilder {
         );
     }
 
-    public static AddUserEvent randomAddUserEvent() {
+    public static AddUserEvent randomAddUserEvent(long group_id) {
         Faker faker = new Faker();
 
         String firstname = faker.name().firstName();
@@ -29,7 +29,7 @@ public class EventBuilder {
 
         return new AddUserEvent(
                 faker.random().nextLong(),
-                faker.random().nextLong(),
+                group_id,
                 faker.random().hex(),
                 firstname,
                 lastname,
@@ -37,11 +37,11 @@ public class EventBuilder {
         );
     }
 
-    public static List<Event> randomAddUserEvents(int count) {
+    public static List<Event> randomAddUserEvents(int count, long group_id) {
         List<Event> eventList = new ArrayList<>();
 
         for (int i = 0; i < count; i++) {
-            eventList.add(EventBuilder.randomAddUserEvent());
+            eventList.add(EventBuilder.randomAddUserEvent(group_id));
         }
 
         return eventList;