Function TestObserverEventsDontBlock

connection/observer_test.go:65–87

(t *testing.T)

}

func TestObserverEventsDontBlock(t *testing.T) {
	observer := NewObserver(&log, &log)
	var mu sync.Mutex
	observer.RegisterSink(EventSinkFunc(func(_ Event) {
		// callback will block if lock is already held
		mu.Lock()
		mu.Unlock()
	}))

	timeout := time.AfterFunc(5*time.Second, func() {
		mu.Unlock() // release the callback on timer expiration
		t.Fatal("observer is blocked")
	})

	mu.Lock() // block the callback
	for i := 0; i < 2*observerChannelBufferSize; i++ {
		observer.sendRegisteringEvent(0)
	}
	if pending := timeout.Stop(); pending {
		// release the callback if timer hasn't expired yet
		mu.Unlock()
	}
}

type eventCollectorSink struct {
	observedEvents []Event