public void Test_DeleteUser_Success()
{
userBUS = new TaiKhoanBUS();
Assert.AreEqual(4, userBUS.LoadUserBUS().Count);
userBUS.DeleteUserBUS(5);
Assert.AreEqual(3, userBUS.LoadUserBUS().Count);
}
//Xoa Tai Khoan
private void DeleteUser()
{
int userId = int.Parse(txtMaTaiKhoan.Text);
userBUS.DeleteUserBUS(userId);
}