public async Task Concurrent_Processing(MqttQualityOfServiceLevel qos)
{
long concurrency = 0;
var success = false;
using (var testEnvironment = new TestEnvironment(TestContext))
{
await testEnvironment.StartServer();
var publisher = await testEnvironment.ConnectClient();
var subscriber = await testEnvironment.ConnectClient(new MqttClientOptionsBuilder().WithClientId(qos.ToString()));
await subscriber.SubscribeAsync("#", qos);
subscriber.ApplicationMessageReceivedAsync += e =>
{
e.AutoAcknowledge = false;
async Task InvokeInternal()
{
if (Interlocked.Increment(ref concurrency) > 1)
{
success = true;
}
await Task.Delay(100);
Interlocked.Decrement(ref concurrency);
}
_ = InvokeInternal();
return(PlatformAbstractionLayer.CompletedTask);
};
var publishes = Task.WhenAll(publisher.PublishStringAsync("a", null, qos), publisher.PublishStringAsync("b", null, qos));
await Task.Delay(200);
await publishes;
Assert.IsTrue(success);
}
}
public async Task Retry_If_Not_PubAck(MqttQualityOfServiceLevel qos)
{
long count = 0;
using (var testEnvironment = CreateTestEnvironment())
{
await testEnvironment.StartServer(o => o.WithPersistentSessions());
var publisher = await testEnvironment.ConnectClient();
var subscriber = await testEnvironment.ConnectClient(o => o.WithClientId(qos.ToString()).WithCleanSession(false));
subscriber.ApplicationMessageReceivedAsync += c =>
{
c.AutoAcknowledge = false;
++count;
Console.WriteLine("process");
return(PlatformAbstractionLayer.CompletedTask);
};
await subscriber.SubscribeAsync("#", qos);
var pub = publisher.PublishStringAsync("a", null, qos);
await Task.Delay(100);
await subscriber.DisconnectAsync();
await subscriber.ConnectAsync(subscriber.Options);
await Task.Delay(100);
var res = await pub;
Assert.AreEqual(MqttClientPublishReasonCode.Success, res.ReasonCode);
Assert.AreEqual(2, count);
}
}