public async Task CircuitBreaker_must_reply_with_special_failure_message_on_Write_requests_if_open()
{
var events = new[] { new DurableEvent("a", "emitter") };
breaker.Tell(ServiceEvent.Failed(LogId, 1, TestLogFailureException));
breaker.Tell(new Write(events, probe.Ref, probe.Ref, 1, 2));
probe.ExpectMsg(new WriteFailure(events, CircuitBreaker.Exception, 1, 2));
probe.Sender.Should().Be(probe.Ref);
}
public async Task CircuitBreaker_must_open_after_first_failed_retry()
{
breaker.Tell(ServiceEvent.Failed(LogId, 1, TestLogFailureException));
try
{
await breaker.Ask("a", Timeout);
}
catch (AggregateException e) when(e.Flatten().InnerException is EventLogUnavailableException)
{
// as expected
}
}
public async Task CircuitBreaker_must_publish_ServiceNormal_once_on_event_stream_when_closed()
{
Sys.EventStream.Subscribe(probe.Ref, typeof(ServiceEvent));
breaker.Tell(ServiceEvent.Failed(LogId, 1, TestLogFailureException));
probe.FishForMessage(msg => msg is ServiceEvent e && e.Type == ServiceEvent.EventType.ServiceFailed);
breaker.Tell(ServiceEvent.Normal(LogId));
probe.ExpectMsg(ServiceEvent.Normal(LogId));
breaker.Tell(ServiceEvent.Normal(LogId));
probe.ExpectNoMsg(300.Milliseconds());
}
public async Task CircuitBreaker_must_publish_ServiceFailed_once_on_event_stream_when_opened()
{
Sys.EventStream.Subscribe(probe.Ref, typeof(ServiceEvent));
var serviceFailed = ServiceEvent.Failed(LogId, 1, TestLogFailureException);
breaker.Tell(serviceFailed);
probe.ExpectMsg(serviceFailed);
breaker.Tell(ServiceEvent.Failed(LogId, 2, TestLogFailureException));
probe.ExpectNoMsg(300.Milliseconds());
}
public async Task CircuitBreaker_must_close_again_after_service_initialization()
{
breaker.Tell(ServiceEvent.Failed(LogId, 1, TestLogFailureException));
try
{
await breaker.Ask("a", Timeout);
}
catch (AggregateException e) when(e.Flatten().InnerException is EventLogUnavailableException)
{
// as expected
}
breaker.Tell(ServiceEvent.Initialized(LogId));
(await breaker.Ask("a", Timeout)).Should().Be("re-a");
}
public async Task CircuitBreaker_must_be_closed_after_initial_failure()
{
breaker.Tell(ServiceEvent.Failed(LogId, 0, TestLogFailureException));
(await breaker.Ask("a", Timeout)).Should().Be("re-a");
}
