public virtual void CanSendDelayedMessage()
{
const int numConcurrentMessages = 10000;
var messageBus = GetMessageBus();
if (messageBus == null)
return;
using (messageBus) {
var resetEvent = new CountDownLatch(numConcurrentMessages);
messageBus.Subscribe<SimpleMessageA>(msg => {
Logger.Trace().Message("Got message").Write();
Assert.Equal("Hello", msg.Data);
resetEvent.Signal();
Logger.Trace().Message("Set event").Write();
});
var sw = new Stopwatch();
sw.Start();
Parallel.For(0, numConcurrentMessages, (_) => {
messageBus.Publish(new SimpleMessageA {
Data = "Hello"
}, TimeSpan.FromMilliseconds(RandomData.GetInt(0, 300)));
Logger.Trace().Message("Published one...").Write();
});
bool success = resetEvent.Wait(2000);
sw.Stop();
Logger.Trace().Message("Done waiting: " + success).Write();
Assert.True(success, "Failed to receive message.");
Assert.True(sw.Elapsed > TimeSpan.FromMilliseconds(80));
}
Thread.Sleep(50);
}
public void MeasureWorkerThroughput()
{
var queue = GetQueue(retries: 3, workItemTimeout: TimeSpan.FromSeconds(2), retryDelay: TimeSpan.FromSeconds(1));
if (queue == null)
return;
FlushAll();
using (queue) {
queue.DeleteQueue();
const int workItemCount = 1000;
for (int i = 0; i < workItemCount; i++) {
queue.Enqueue(new SimpleWorkItem {
Data = "Hello"
});
}
Assert.Equal(workItemCount, queue.GetQueueStats().Queued);
var countdown = new CountDownLatch(workItemCount);
var metrics = new InMemoryMetricsClient();
queue.StartWorking(workItem => {
Assert.Equal("Hello", workItem.Value.Data);
workItem.Complete();
metrics.Counter("work");
countdown.Signal();
});
countdown.Wait(60 * 1000);
metrics.DisplayStats(_output);
var stats = queue.GetQueueStats();
Assert.Equal(workItemCount, stats.Dequeued);
Assert.Equal(workItemCount, stats.Completed);
Assert.Equal(0, stats.Queued);
Trace.WriteLine(CountAllKeys());
}
}
public virtual void CanSendMessageToMultipleSubscribers()
{
var messageBus = GetMessageBus();
if (messageBus == null)
return;
using (messageBus) {
var latch = new CountDownLatch(3);
messageBus.Subscribe<SimpleMessageA>(msg => {
Assert.Equal("Hello", msg.Data);
latch.Signal();
});
messageBus.Subscribe<SimpleMessageA>(msg => {
Assert.Equal("Hello", msg.Data);
latch.Signal();
});
messageBus.Subscribe<SimpleMessageA>(msg => {
Assert.Equal("Hello", msg.Data);
latch.Signal();
});
messageBus.Publish(new SimpleMessageA {
Data = "Hello"
});
bool success = latch.Wait(2000);
Assert.True(success, "Failed to receive all messages.");
}
Thread.Sleep(50);
}
public virtual void WillReceiveDerivedMessageTypes()
{
var messageBus = GetMessageBus();
if (messageBus == null)
return;
using (messageBus) {
var latch = new CountDownLatch(2);
messageBus.Subscribe<ISimpleMessage>(msg => {
Assert.Equal("Hello", msg.Data);
latch.Signal();
});
messageBus.Publish(new SimpleMessageA {
Data = "Hello"
});
messageBus.Publish(new SimpleMessageB {
Data = "Hello"
});
messageBus.Publish(new SimpleMessageC {
Data = "Hello"
});
bool success = latch.Wait(5000);
Assert.True(success, "Failed to receive all messages.");
}
Thread.Sleep(50);
}
public virtual void CanTolerateSubscriberFailure()
{
var messageBus = GetMessageBus();
if (messageBus == null)
return;
using (messageBus) {
var latch = new CountDownLatch(2);
messageBus.Subscribe<SimpleMessageA>(msg => {
throw new ApplicationException();
});
messageBus.Subscribe<SimpleMessageA>(msg => {
Assert.Equal("Hello", msg.Data);
latch.Signal();
});
messageBus.Subscribe<SimpleMessageA>(msg => {
Assert.Equal("Hello", msg.Data);
latch.Signal();
});
messageBus.Publish(new SimpleMessageA {
Data = "Hello"
});
bool success = latch.Wait(2000);
Assert.True(success, "Failed to receive all messages.");
}
Thread.Sleep(50);
}
public virtual void CanSubscribeToAllMessageTypes()
{
var messageBus = GetMessageBus();
if (messageBus == null)
return;
using (messageBus) {
var latch = new CountDownLatch(3);
messageBus.Subscribe<object>(msg => {
latch.Signal();
});
messageBus.Publish(new SimpleMessageA {
Data = "Hello"
});
messageBus.Publish(new SimpleMessageB {
Data = "Hello"
});
messageBus.Publish(new SimpleMessageC {
Data = "Hello"
});
bool success = latch.Wait(2000);
Assert.True(success, "Failed to receive all messages.");
}
Thread.Sleep(50);
}