public void Display_LogoutView_ShouldReturnExpectedView()
{
User user = new User(FirstUsername, "password", Role.Student);
IView logoutView = new Logout(user);
string actualView = logoutView.Display();
string expectedView = string.Format($"User {user.Username} logged out successfully.");
Assert.AreEqual(expectedView, actualView, "Unsuccessful view within the login operation!");
}