public void RegisterUser() { //Arrange var mockRepo = new MockUserRepository(); var manager = new UserManager(mockRepo, new MD5Encryption()); //Test Data var user = new UserModel { Email = "*****@*****.**", FirstName = "Temp", LastName = "Sample", }; //Act manager.RegisterUser(user, "password"); //Assert Assert.IsTrue(mockRepo.GetUserByEmail(user.Email) != null, "User not added"); }