test(forum): updated forum service unit tests.

Author: CotSezer

apps/jobboard-backend/src/test/java/org/bounswe/jobboardbackend/forum/service/ForumServiceTest.java

@@ -13,6 +13,7 @@
 import org.bounswe.jobboardbackend.forum.repository.ForumCommentRepository;
 import org.bounswe.jobboardbackend.forum.repository.ForumCommentUpvoteRepository;
 import org.bounswe.jobboardbackend.forum.repository.ForumPostRepository;
+import org.bounswe.jobboardbackend.notification.service.NotificationService;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
@@ -43,6 +44,8 @@ class ForumServiceTest {
     @Mock
     private ForumCommentDownvoteRepository downvoteRepository;
 
+    @Mock private NotificationService notificationService;
+
     @InjectMocks
     private ForumService forumService;