HomeActivityUnitTest_With_onCreate_shouldCall_fetchHomeMetaData.java

@Test
    public void onCreate_shouldCall_fetchHomeMetaData(){
        //Given
        HomeActivityOutputSpy homeActivityOutputSpy = new HomeActivityOutputSpy();
        HomeActivity homeActivity = Robolectric.setupActivity(HomeActivity.class);
        // It must have called the onCreate earlier,
        // we are injecting the mock and calling the fetchMetaData to test our condition
        homeActivity.output = homeActivityOutputSpy;

        //When
        homeActivity.fetchMetaData();

        //Then
        Assert.assertTrue(homeActivityOutputSpy.fetchHomeMetaDataIsCalled);
  }