@Test
  public void onBannerCollapsed_shouldRestoreRefreshSettingAndCallAdClosed() throws Exception {
    stub(moPubView.getAutorefreshEnabled()).toReturn(true);
    subject.onBannerExpanded();
    reset(moPubView);
    subject.onBannerCollapsed();
    verify(moPubView).setAutorefreshEnabled(eq(true));
    verify(moPubView).adClosed();

    stub(moPubView.getAutorefreshEnabled()).toReturn(false);
    subject.onBannerExpanded();
    reset(moPubView);
    subject.onBannerCollapsed();
    verify(moPubView).setAutorefreshEnabled(eq(false));
    verify(moPubView).adClosed();
  }
  @Test
  public void invalidate_shouldCauseBannerListenerMethodsToDoNothing() throws Exception {
    subject.invalidate();

    subject.onBannerLoaded(null);
    subject.onBannerFailed(null);
    subject.onBannerExpanded();
    subject.onBannerCollapsed();
    subject.onBannerClicked();
    subject.onLeaveApplication();

    verify(moPubView, never()).nativeAdLoaded();
    verify(moPubView, never()).setAdContentView(any(View.class));
    verify(moPubView, never()).trackNativeImpression();
    verify(moPubView, never()).loadFailUrl(any(MoPubErrorCode.class));
    verify(moPubView, never()).setAutorefreshEnabled(any(boolean.class));
    verify(moPubView, never()).adClosed();
    verify(moPubView, never()).registerClick();
  }