CancelT_Specs.When_canceling_a_composer.Should_throw_task_canceled_exception C# (CSharp) Method

            public void Should_throw_task_canceled_exception()
            {
                var cancel = new CancellationTokenSource();

                var payload = new Payload {Name = "Chris"};

                Task<Payload> task = ComposerFactory.Compose(payload, composer =>
                {
                    composer.Execute(x =>
                    {
                        x.Name = "Joe";
                        cancel.Cancel();
                    });

                    composer.Execute(x => { x.Name = "Mark"; });
                }, cancel.Token);

                Assert.Throws<TaskCanceledException>(async () => { Payload p = await task; });

                Assert.AreEqual("Joe", payload.Name);
            }
        }