public static void AbilityToDeleteAClient() { var engine = new TaskEngine(); engine.SaveClient(new Client { Name = "Audi" }); engine.SaveClient(new Client { Name = "BMW" }); engine.RemoveClientByName("Audi"); var clients = engine.GetClients(); Assert.AreEqual(clients.Count, 1); Assert.AreEqual(clients[0].Name, "BMW"); }