minor changes

back/test/mail/saveMessage-test.ts

@@ -146,6 +146,7 @@ describe("saveMessage", () => {
 
             await register.save();
 
+            // the owner of the room will be the recipient (not us)
             expect(createOrRegisterOnExistence).toHaveBeenCalledWith(db.users[1].id, RoomType.DM);
         });
         it("should create a GROUP when there is a new first message from us to multiple recipients", async () => {

back/test/test-utils/db/test-saveMessage.ts

@@ -29,7 +29,7 @@ export default class saveMessageDatabase {
         this.rooms = [];
         this.messages = [];
         this.room_message = [];
-        this.users = generateUsers(5); // todo
+        this.users = _users;
         this.roomId = 0;
     }