Test PendingIntent send without sleep

Question

I got the following test case:

Intent intent = new Intent("test");
PendingIntent pendingIntent = PendingIntent.getBroadcast(getContext(), 1, intent, PendingIntent.FLAG_UPDATE_CURRENT);
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("test");
testReceiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    recieved=true;
  }
};
getContext().registerReceiver(testReceiver,intentFilter );
pendingIntent.send();
Thread.sleep(100);

assertTrue(recieved);

Is there a way to make this test pass without the Thread.sleep ?

Answer 1

You can use a CountDownLatch to wait on something like that to occur. You initialize it with a count. The await() methods will wait on the count to hit 0. When it does they stop blocking (or if you specify a timeout it will return false if it timed out before the count reached 0).

Here's your sample code modified to use a CountDownLatch:

CountIntent intent = new Intent("test");
PendingIntent pendingIntent = PendingIntent.getBroadcast(getContext(), 1, intent, PendingIntent.FLAG_UPDATE_CURRENT);
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("test");

final CountDownLatch countDownLatch = new CountDownLatch(1);
testReceiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    countDownLatch.countDown();
  }
};
getContext().registerReceiver(testReceiver,intentFilter );
pendingIntent.send();

assertTrue(countDownLatch.await(1, TimeUnit.SECONDS));