@Test
 public void start_shouldStartRouting() throws Exception {
   fragment.createRouteToDestination();
   Route testRoute = new Route(getFixture("around_the_block"));
   fragment.success(testRoute);
   ImageButton startBtn = (ImageButton) fragment.getView().findViewById(R.id.routing_circle);
   startBtn.performClick();
   assertThat(activity.getSupportFragmentManager()).hasFragmentWithTag(RouteFragment.TAG);
 }
 @Test
 public void onResume_shouldNotCreateRouteToDestinationIfRouting() throws Exception {
   activity
       .getSupportFragmentManager()
       .beginTransaction()
       .add(new Fragment(), RouteFragment.TAG)
       .commit();
   fragment.onResume();
   verify(router, times(1)).fetch();
 }