public void Stylist_DeleteClient_DeletesASingleClient()
        {
            Stylist newStylist = new Stylist("John Smith", "(123)-456-7890");

            newStylist.Save();

            Client client1 = new Client("Tom Smith", "(555)-123-4567", newStylist.GetId());

            client1.Save();
            Client client2 = new Client("Billy Bob", "(123)-098-7654", newStylist.GetId());

            client2.Save();

            newStylist.DeleteClient(client1);
            List <Client> controlList = new List <Client> {
                client2
            };
            List <Client> testList = newStylist.GetClients();

            Assert.Equal(controlList, testList);
        }