public void A_UnfoldResourceAsyncSource_must_unfold_data_from_a_resource()
{
var createPromise = new TaskCompletionSource <Done>();
var closePromise = new TaskCompletionSource <Done>();
var values = Enumerable.Range(0, 1000).ToList();
var resource = new ResourceDummy <int>(values, createPromise.Task, closeFuture: closePromise.Task);
var probe = this.CreateSubscriberProbe <int>();
Source.UnfoldResourceAsync(
() => resource.Create(),
r => r.Read(),
close: r => r.Close())
.RunWith(Sink.FromSubscriber(probe), Materializer);
probe.Request(1);
_ = resource.Created.Result;
probe.ExpectNoMsg(TimeSpan.FromMilliseconds(200));
createPromise.SetResult(Done.Instance);
values.ForEach(i =>
{
_ = resource.FirstElementRead.Result;
probe.ExpectNext().ShouldBe(i);
probe.Request(1);
});
resource.Closed.Wait();
closePromise.SetResult(Done.Instance);
probe.ExpectComplete();
}
public void A_UnfoldResourceAsyncSource_must_close_resource_successfully_right_after_open()
{
this.AssertAllStagesStopped(() =>
{
var probe = this.CreateSubscriberProbe <int>();
var firtRead = new TaskCompletionSource <Done>();
var resource = new ResourceDummy <int>(new[] { 1 }, firstReadFuture: firtRead.Task);
Source.UnfoldResourceAsync(
create: () => resource.Create(),
read: reader => reader.Read(),
close: reader => reader.Close())
.RunWith(Sink.FromSubscriber(probe), Materializer);
probe.Request(1L);
_ = resource.FirstElementRead.Result;
// we cancel before we complete first read (racy)
probe.Cancel();
Thread.Sleep(100);
firtRead.SetResult(Done.Instance);
resource.Closed.Wait();
}, Materializer);
}
