How to test handler message using roboelectric or mockito

Question

I'm trying to test a piece of code using roboelectric and mockito framework that contains a handler.sendMessage(msg):

public void emailLogin(){
...
    mHandler.sendMessage(message);
}

Handler mHandler = new Handler(new Callback() {

        public boolean handleMessage(Message msg) {
            System.out.println("called");
            return false;
        }
});

The handler works perfectly without normal envoirnment, but if I write a unit test for that method, the handler is not triggered.

Is the handler.sendMessage(msg) missing from robolectric? Or We have to test handler seperately?

I don't want to test the handler it self through a unit test, what I want to test is my function, that contains the handler.

score 2 · Answer 1 · answered Apr 24 '14 at 17:39

Take a look into:

Robolectric.runUiThreadTasks();

I was running into the same problem with Handlers inside the loopj Android Asynchronous Http Client library not getting hit when running tests with using the RobolectricTestRunner class, and ended up using similar approach that was mentioned here: https://groups.google.com/forum/#!topic/robolectric/hbcTw3jLXys

How to test handler message using roboelectric or mockito

1 Answers1