public void TerminatesOnWriteTimeout()
        {
            var sut = new BufferedChannel <int>(1, Timeout100Ms);

            Should.NotThrow(sut.WriteAsync(1), Timeout1Sec);
            sut.TryWrite(1).ShouldBe(false);
            Should.Throw <ChannelWriteTimeoutException>(sut.WaitWriteAvailableAsync(), Timeout1Sec);
            Should.Throw <ChannelWriteTimeoutException>(sut.Out.Completion, Timeout1Sec);
            sut.TryRead(out _).ShouldBe(true);
            Should.Throw <Exception>(sut.Completion, Timeout1Sec);
        }