public void WriteAsyncCompletesWhenThereIsBufferSpaceAvailable()
{
var sut = new BufferedChannel <int>(1);
Should.CompleteIn(sut.WriteAsync(1), TimeSpan.FromSeconds(1));
var writeTask = sut.WriteAsync(2);
writeTask.IsCompleted.ShouldBe(false);
sut.TryReadSafe(out int item).ShouldBe(true);
item.ShouldBe(1);
Should.CompleteIn(writeTask, TimeSpan.FromSeconds(1));
sut.TryReadSafe(out item).ShouldBe(true);
item.ShouldBe(2);
}