Unit test with AsyncTask

gistfile1.java

public class NetworkTasksTest extends InstrumentationTestCase{

	
	public void testGetMedia() throws Throwable{
		
		final Context context = getInstrumentation().getTargetContext();
		final CountDownLatch signal = new CountDownLatch(1);
		final NetworkTasks networkTasks = new NetworkTasks(context, new GetMediaListener(signal));
    	
		runTestOnUiThread(new Runnable() {
			public void run() {
	        	Media media = new Media();
	        	media.setId("179");
	        	networkTasks.getMedia(media);        
	        }
	    });  
		
		signal.await(30, TimeUnit.SECONDS);
		
	}
	
	private abstract class CallbackListener implements INetworkTasksListener{
		private CountDownLatch signal;
		
		CallbackListener(CountDownLatch signal){
			this.signal = signal;
		}
		
		public void onSuccess(Media... medias) {
			signal.countDown();
		}
		
		public void onFail(Throwable t) {
			signal.countDown();
		}
	}
	


private abstract class CallbackListener implements INetworkTasksListener{
		private CountDownLatch signal;
		
		CallbackListener(CountDownLatch signal){
			this.signal = signal;
		}
		
		public void onSuccess(Media... medias) {
			signal.countDown();
		}
		
		public void onFail(Throwable t) {
			signal.countDown();
		}
}

	private class GetMediaListener extends CallbackListener{
		
		GetMediaListener(CountDownLatch signal){
			super(signal);
		}
		
		
		public void onSuccess(Media... medias) {
			Media m = medias[0];
			Log.d(TAG, "media uri path is "+m.getMediaUrl());
			Assert.assertTrue(true);
			super.onSuccess(medias);
			
		}

		public void onFail(Throwable t) {
			Assert.assertTrue(false);
			super.onFail(t);
			
		}
		
	}
}
		
}