@Test
public void loadNativeAd_withValidInput_shouldCallLoadNativeAdOnTheCustomEvent() throws Exception {

    CustomEventNativeAdapter.loadNativeAd(context, localExtras, downloadResponse, mCustomEventNativeListener);
    verify(mCustomEventNative).loadNativeAd(context, mCustomEventNativeListener, localExtras, serverExtras);
    verify(mCustomEventNativeListener, never()).onNativeAdFailed(any(NativeErrorCode.class));
    verify(mCustomEventNativeListener, never()).onNativeAdLoaded(any(NativeAdInterface.class));
}