public void CostTest()
        {
            fr_videoRental_System.Task.operations obj = new fr_videoRental_System.Task.operations();

            if (obj.getCost(1) > 0)
            {
                Assert.IsTrue(true);
            }
            else
            {
                Assert.IsTrue(false);
            }
        }
        public void MainFormTest()
        {
            fr_videoRental_System.Task.operations obj = new fr_videoRental_System.Task.operations();
            int z = obj.findcost(2019);

            if (z == 5)
            {
                Assert.IsTrue(true);
            }
            else
            {
                Assert.IsTrue(false);
            }
        }