func expectEvent(w *events.Subscription, t *testing.T, size int) {
event, err := w.Poll(timeout)
if err != nil {
t.Fatal("Unexpected error:", err)
}
if event.Type != events.DownloadProgress {
t.Fatal("Unexpected event:", event)
}
data := event.Data.(map[string]map[string]*pullerProgress)
if len(data) != size {
t.Fatal("Unexpected event data size:", data)
}
}
func expectTimeout(w *events.Subscription, t *testing.T) {
_, err := w.Poll(timeout)
if err != events.ErrTimeout {
t.Fatal("Unexpected non-Timeout error:", err)
}
}