Ho un metodo asincrono sto convertendo in un metodo di sincronizzazione utilizzando un latch countdown. Sto lottando con la scrittura di un test unitario senza usare la funzione di timeout di mockito. Non riesco a capire come ottenere il metodo di verifica per attendere la chiamata del metodo asincrono:Mockito con convertitore di sincronizzazione asincrono Java
public interface SyncExchangeService {
boolean placeOrder(Order order);
}
public interface ExchangeService {
void placeOrder(Order order, OrderCallback orderResponseCallback);
}
public interface OrderCallback {
public void onSuccess();
public void onFailure();
}
public class SyncExchangeServiceAdapter implements SyncExchangeService {
private ExchangeService exchangeService;
public SyncExchangeServiceAdapter(ExchangeService exchangeService) {
this.exchangeService = exchangeService;
}
@Override
public boolean placeOrder(Order order) {
final CountDownLatch countdownLatch=new CountDownLatch(1);
final AtomicBoolean result=new AtomicBoolean();
exchangeService.placeOrder(order, new OrderCallback() {
@Override
public void onSuccess() {
result.set(true);
countdownLatch.countDown();
}
@Override
public void onFailure(String rejectReason) {
result.set(false);
countdownLatch.countDown();
}
});
try {
countdownLatch.await();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
return result.get();
}
}
public class SyncExchangeServiceAdapterTest {
private ExchangeService mockExchange=mock(ExchangeService.class);
private SyncExchangeServiceAdapter adapter=new SyncExchangeServiceAdapter(mockExchange);
private Boolean response;
private ArgumentCaptor<Boolean> callback=CaptorArgumentCaptor.forClass(OrderCallback.class);
private CountDownLatch latch=new CountDownLatch(1);
@Test
public void testPlaceOrderWithSuccess() throws Exception {
final Order order=mock(Order.class);
Executors.newSingleThreadExecutor().submit(new Runnable() {
@Override
public void run() {
response=adapter.placeOrder(order);
latch.countDown();
}
});
verify(mockExchange,timeout(10)).placeOrder(eq(order), callbackCaptor.capture());
//the timeout method is not really recommended and could also fail randomly if the thread takes more than 10ms
callbackCaptor.getValue().onSuccess();
latch.await(1000,TimeUnit.MILLISECONDS);
assertEquals(true,response);
}
}
+1 per awaitility. Non ne avevo mai sentito parlare, ma sembra abbastanza utile. – jhericks