public void ShouldGetMessagesFromUser() { //arrange var user = new User { Name = "testCharUser", Picture = new byte[] {} }; var login = "******"; var password = "******"; var title = "chatTitle"; var pic = new byte[] {}; string msg1 = "TestText of msg"; string msg2 = "TestText of msg2"; //act var userRepository = new UsersRepository(ConnectionString); var resultUser1 = userRepository.Create(user, login, password); var resultUser2 = userRepository.Create(user, login + "1", password); var userIds = new List <Guid> { resultUser1.Id, resultUser2.Id }; _tempUsers.AddRange(userIds); var chatRepository = new ChatsRepository(ConnectionString); var resultChat = chatRepository.Create(title, userIds, pic); _tempChats.Add(resultChat.Id); var messageRepository = new MessagesRepository(ConnectionString); var resultMsg1 = messageRepository.Send(msg1, resultUser1.Id, resultChat.Id); _tempMessages.Add(resultMsg1.Id); var resultMsg2 = messageRepository.Send(msg2, resultUser1.Id, resultChat.Id); _tempMessages.Add(resultMsg2.Id); var resultMsgs = messageRepository.GetMessagesFromUser(resultUser1.Id); //asserts Assert.AreEqual(true, resultMsgs.Any(m => m.Id == resultMsg1.Id)); Assert.AreEqual(true, resultMsgs.Any(m => m.Id == resultMsg2.Id)); }