public void TestXoaCoMoiMaHoaDon()
        {
            string MaHoaDon           = "E72G4TC5";
            QuanLyHomestayEntities db = new QuanLyHomestayEntities();
            HOADON hd = (from i in db.HOADONs where i.MaHoaDon.Equals(MaHoaDon) select i).FirstOrDefault();

            bool expected = true;
            bool actual   = DatPhong.deletePhong(db, hd);

            Assert.AreEqual(expected, actual);
        }
        public void TestXoaDayDuThongTin()
        {
            QuanLyHomestayEntities db = new QuanLyHomestayEntities();
            HOADON hd = new HOADON();

            hd.NgayDen        = DateTime.Parse("5/20/2019");
            hd.NgayDi         = DateTime.Parse("5/25/2019");
            hd.MaLoaiPhong    = "NC1";
            hd.GiaTien        = "299000";
            hd.DonVi          = "VND";
            hd.SoTienDatTruoc = null;
            hd.MaHoaDon       = "E72G4TC7";
            hd.NgayThanhToan  = DateTime.Parse("5/20/2019");

            bool expected = true;
            bool actual   = DatPhong.deletePhong(db, hd);

            Assert.AreEqual(expected, actual);
        }