public void MessageTestMethodGet() { var messageManager = new MessagesManager(sUoW, mapper); sUoW.MessagesRepo.Get(c => c.Id == 1).ReturnsForAnyArgs(new List <Messages> { new Messages { IsDeleted = true, FromEmail = "dad", Id = 1 } }); Assert.AreEqual(1, messageManager.Get(c => c.Id == 1).FirstOrDefault().Id); }