Exemple #1
0
// wait for an event; do things that might trigger events, and check them when they are received
// the check function takes an event id and the byte slice read off the ws
func waitForEvent(t *testing.T, wsc *client.WSClient, eventid string, dieOnTimeout bool, f func(), check func(string, interface{}) error) {
	// go routine to wait for webscoket msg
	goodCh := make(chan interface{})
	errCh := make(chan error)

	// Read message
	go func() {
		var err error
	LOOP:
		for {
			select {
			case r := <-wsc.ResultsCh:
				result := new(ctypes.TMResult)
				wire.ReadJSONPtr(result, r, &err)
				if err != nil {
					errCh <- err
					break LOOP
				}
				event, ok := (*result).(*ctypes.ResultEvent)
				if ok && event.Name == eventid {
					goodCh <- event.Data
					break LOOP
				}
			case err := <-wsc.ErrorsCh:
				errCh <- err
				break LOOP
			case <-wsc.Quit:
				break LOOP
			}
		}
	}()

	// do stuff (transactions)
	f()

	// wait for an event or timeout
	timeout := time.NewTimer(10 * time.Second)
	select {
	case <-timeout.C:
		if dieOnTimeout {
			wsc.Stop()
			t.Fatalf("%s event was not received in time", eventid)
		}
		// else that's great, we didn't hear the event
		// and we shouldn't have
	case eventData := <-goodCh:
		if dieOnTimeout {
			// message was received and expected
			// run the check
			if err := check(eventid, eventData); err != nil {
				t.Fatal(err) // Show the stack trace.
			}
		} else {
			wsc.Stop()
			t.Fatalf("%s event was not expected", eventid)
		}
	case err := <-errCh:
		t.Fatal(err)
		panic(err) // Show the stack trace.

	}
}
Exemple #2
0
// unsubscribe from an event
func unsubscribe(t *testing.T, wsc *client.WSClient, eventid string) {
	if err := wsc.Unsubscribe(eventid); err != nil {
		t.Fatal(err)
	}
}