public void ValidatePropertiesTest() { LoginAdmin admin = new LoginAdmin { Username = "******", Password = "******" }; RegisterAdmin admins = new RegisterAdmin { Username = "******", Password = "******" }; UpdatePassword upt = new UpdatePassword { Username = "******", NewPassword = "******", RepeatPassword = "******" }; admins.ValidateAllProperties(); admin.ValidateAllProperties(); upt.ValidateAllProperties(); }