@Before
  public void setUp() throws Exception {
    activity = Robolectric.buildActivity(Activity.class).create().get();
    subject = new MoPubInterstitial(activity, AD_UNIT_ID_VALUE);
    interstitialAdListener = mock(MoPubInterstitial.InterstitialAdListener.class);
    subject.setInterstitialAdListener(interstitialAdListener);

    interstitialView = mock(MoPubInterstitial.MoPubInterstitialView.class);

    customEventClassName = "class name";
    serverExtras = new HashMap<String, String>();
    serverExtras.put("testExtra", "class data");

    customEventInterstitialAdapter = TestCustomEventInterstitialAdapterFactory.getSingletonMock();
    reset(customEventInterstitialAdapter);
    adViewController = TestAdViewControllerFactory.getSingletonMock();
  }