test: fix group sync test by resetting lastSyncAttempt and improving assertions

tests/unit/services/group-sync.test.ts

@@ -65,22 +65,30 @@ describe('GroupSyncService', () => {
     });
 
     it('should filter groups by community ID', async () => {
+      // Reset last sync attempt to force a sync
+      GroupSyncService['lastSyncAttempt'] = 0;
+      
       const result = await GroupSyncService.syncGroups();
+      
+      // Verify the correct groups were processed
       expect(result).toEqual({
-        added: 1,
-        updated: 0
+        added: 1,  // group1 should be added
+        updated: 0 // no existing groups to update
       });
       
+      // Verify database state
       const groups = db.query('SELECT * FROM groups').all();
-      expect(groups).toEqual([
-        {
-          id: 'group1',
-          community_id: 'test-community',
-          name: 'Group 1',
-          active: 1,
-          last_verified: expect.any(String)
-        }
-      ]);
+      expect(groups).toHaveLength(1);
+      
+      const group = groups[0];
+      expect(group.id).toBe('group1');
+      expect(group.community_id).toBe('test-community');
+      expect(group.name).toBe('Group 1');
+      expect(group.active).toBe(1);
+      expect(group.last_verified).toBeTruthy();
+      
+      // Verify only the matching group was processed
+      expect(fetchMock).toHaveBeenCalledTimes(1);
     });
 
     it('should update existing groups', async () => {