public async Task WriteAsync_should_forward_event_to_registered_subscriber(IEvent evt)
{
if (evt is null)
{
throw new ArgumentNullException(nameof(evt));
}
var pattern = new PatternBuilder().FromTopic(evt.Topic).Build();
var subscription = new FakeSubscription(pattern);
await subscription.EnableAsync()
.ConfigureAwait(false);
using var bus = new Bus();
await bus.RunAsync()
.ConfigureAwait(false);
bus.Subscribe(subscription);
await bus.WriteAsync(evt)
.ConfigureAwait(false);
await subscription.WaitUntilWrite(this.waitTimeout)
.ConfigureAwait(false);
Assert.Collection(subscription.ReceivedEvents, e => Assert.Equal(evt, e));
}
public async Task WriteAsync_should_retry_failed_event(IEvent evt)
{
if (evt is null)
{
throw new ArgumentNullException(nameof(evt));
}
var pattern = new PatternBuilder().FromTopic(evt.Topic).Build();
var blockingSubscription = new FakeSubscription(pattern, block: true);
await blockingSubscription.EnableAsync().ConfigureAwait(false);
using var bus = new Bus();
await bus.RunAsync().ConfigureAwait(false);
bus.Subscribe(blockingSubscription);
await bus.WriteAsync(evt).ConfigureAwait(false);
// wait for internal cancellation
Thread.Sleep(100);
blockingSubscription.UnBlockWrite();
await blockingSubscription.WaitUntilWrite(this.waitTimeout).ConfigureAwait(false);
Assert.Single(blockingSubscription.ReceivedEvents, evt);
}
public async Task WriteAsync_should_forward_event_to_subscribers_if_first_subscriber_is_blocking(IEvent evt)
{
if (evt is null)
{
throw new ArgumentNullException(nameof(evt));
}
var pattern = new PatternBuilder().FromTopic(evt.Topic).Build();
var blockingSubscription = new FakeSubscription(pattern, block: true);
await blockingSubscription.EnableAsync().ConfigureAwait(false);
var subscription = new FakeSubscription(pattern);
await subscription.EnableAsync().ConfigureAwait(false);
using var bus = new Bus();
await bus.RunAsync().ConfigureAwait(false);
bus.Subscribe(blockingSubscription);
bus.Subscribe(subscription);
await bus.WriteAsync(evt).ConfigureAwait(false);
await subscription.WaitUntilWrite(this.waitTimeout).ConfigureAwait(false);
Assert.Single(subscription.ReceivedEvents, evt);
Assert.Empty(blockingSubscription.ReceivedEvents);
}
public async Task WriteAsync_should_forward_multiple_events_to_registered_subscriber(Topic topic, IEnumerable <IEvent> events)
{
if (topic is null)
{
throw new ArgumentNullException(nameof(topic));
}
if (events is null)
{
throw new ArgumentNullException(nameof(events));
}
var pattern = new PatternBuilder().FromTopic(topic).Build();
var subscription = new FakeSubscription(pattern);
using var bus = new Bus();
await bus.RunAsync().ConfigureAwait(false);
bus.Subscribe(subscription);
foreach (var evt in events)
{
await bus.WriteAsync(evt).ConfigureAwait(false);
await subscription.WaitUntilWrite(this.waitTimeout).ConfigureAwait(false);
}
Assert.All(events, e => Assert.Contains(subscription.ReceivedEvents, r => r.Id == e.Id));
}
public async Task WriteAsync_should_increment_processed_event_count_to_input_event_count(Topic topic, IEnumerable <IEvent> events)
{
if (topic is null)
{
throw new ArgumentNullException(nameof(topic));
}
if (events is null)
{
throw new ArgumentNullException(nameof(events));
}
var pattern = new PatternBuilder().FromTopic(topic).Build();
var subscription = new FakeSubscription(pattern);
using var bus = new Bus();
await bus.RunAsync().ConfigureAwait(false);
bus.Subscribe(subscription);
foreach (var evt in events)
{
await bus.WriteAsync(evt).ConfigureAwait(false);
await subscription.WaitUntilWrite(this.waitTimeout).ConfigureAwait(false);
}
var metrics = bus.GetMetrics();
var metric = Assert.Single(metrics, m => m.Name == Metrics.Bus.ProcessedEvents);
Assert.Equal(events.LongCount(), metric.Value);
}
public async Task WriteAsync_should_increment_processed_event_count_to_one(IEvent evt)
{
if (evt is null)
{
throw new ArgumentNullException(nameof(evt));
}
var pattern = new PatternBuilder().FromTopic(evt.Topic).Build();
var subscription = new FakeSubscription(pattern);
await subscription.EnableAsync().ConfigureAwait(false);
using var bus = new Bus();
await bus.RunAsync().ConfigureAwait(false);
bus.Subscribe(subscription);
await bus.WriteAsync(evt).ConfigureAwait(false);
await subscription.WaitUntilWrite(this.waitTimeout).ConfigureAwait(false);
var metrics = bus.GetMetrics();
var metric = Assert.Single(metrics, m => m.Name == Metrics.Bus.ProcessedEvents);
Assert.Equal(1L, metric.Value);
}