[TestCase(" ")]     //failed
        public void LaySoKhachHD(int mab)
        {
            //Arr
            var HoaDonUseCase = new HoaDonUseCase();

            //Act
            int actualCount = HoaDonUseCase.LaySoKhachHD(mab);

            //Assert
            Assert.IsTrue(actualCount != 1, "Khong hop le");
        }
 public int LaySoKhachHD(int id)
 {
     return(hd.LaySoKhachHD(id));
 }