public async Task Given_subscribed_When_disconnectiong_and_connecting_again_It_should_resubscribe_and_get_messages()
{
var subject = Context.GenerateSubject();
_sync = Sync.MaxOne();
_client = await Context.ConnectClientAsync();
_client.Sub(subject, stream => stream.Subscribe(NatsObserver.Delegating <MsgOp>(msg => _sync.Release(msg))));
await Context.DelayAsync();
await _client.PubAsync(subject, "Test1");
_sync.WaitForAny();
_client.Disconnect();
await _client.ConnectAsync();
await _client.PubAsync(subject, "Test2");
_sync.WaitForAny();
_sync.InterceptedCount.Should().Be(2);
}
public static async Task <TimeSpan> MyNatsClientRequestAsync(int n, ReadOnlyMemory <byte> payload, bool useTls)
{
Console.WriteLine($"MyNatsClient-RequestAsync: n={n} s={payload.Length}");
const string subject = "casea";
using var cts = new CancellationTokenSource();
using var sync = new AutoResetEvent(false);
var tcs = new TaskCompletionSource <TimeSpan>();
var cnInfo = new ConnectionInfo("127.0.0.1");
if (useTls)
{
cnInfo.ServerCertificateValidation = (_, __, ___) => true;
}
var responderTask = Task.Factory.StartNew(async() =>
{
using var client = new NatsClient(cnInfo);
await client.ConnectAsync().ConfigureAwait(false);
client.Sub(subject, messages => messages.SubscribeSafe(msg => { client.Pub(msg.ReplyTo, msg.Payload); }));
sync.Set();
await tcs.Task.ConfigureAwait(false);
}, cts.Token, TaskCreationOptions.LongRunning, TaskScheduler.Default);
var requesterTask = Task.Factory.StartNew(async() =>
{
using var client = new NatsClient(cnInfo);
await client.ConnectAsync().ConfigureAwait(false);
if (!sync.WaitOne(1000))
{
throw new Exception("Responder does not seem to be started.");
}
for (var i = 0; i < 10; i++)
{
await client.RequestAsync(subject, payload, cts.Token).ConfigureAwait(false);
}
var sw = Stopwatch.StartNew();
for (var i = 0; i < n; i++)
{
await client.RequestAsync(subject, payload, cts.Token).ConfigureAwait(false);
}
sw.Stop();
tcs.SetResult(sw.Elapsed);
}, cts.Token, TaskCreationOptions.LongRunning, TaskScheduler.Default);
var elapsed = await tcs.Task.ConfigureAwait(false);
cts.Cancel();
await Task.WhenAll(responderTask, requesterTask).ConfigureAwait(false);
return(elapsed);
}