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MihaiCristianCondreaMihaiCristianCondrea
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Add unit tests for ad utilities and native ad loader
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‎app/src/test/java/com/d4rk/androidtutorials/java/ads/AdUtilsTest.java‎

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@@ -57,6 +57,23 @@ public void loadBanner_withAdView_loadsAd() {
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verify(adView, times(1)).loadAd(any(AdRequest.class));
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}
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@Test
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public void loadBanner_withAdView_multipleCalls_initializeOnlyOnce() {
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Context context = mock(Context.class);
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when(context.getApplicationContext()).thenReturn(context);
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AdView adView = mock(AdView.class);
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when(adView.getContext()).thenReturn(context);
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try (MockedStatic<MobileAds> mobileAds = mockStatic(MobileAds.class)) {
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AdUtils.loadBanner(adView);
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AdUtils.loadBanner(adView);
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mobileAds.verify(() -> MobileAds.initialize(context), times(1));
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}
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verify(adView, times(2)).loadAd(any(AdRequest.class));
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}
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@Test
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public void loadBanner_withNativeAdBannerView_loadsAd() {
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Context context = mock(Context.class);

‎app/src/test/java/com/d4rk/androidtutorials/java/ads/NativeAdLoaderTest.java‎

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package com.d4rk.androidtutorials.java.ads;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import static org.mockito.ArgumentMatchers.any;
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import static org.mockito.ArgumentMatchers.anyString;
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import static org.mockito.ArgumentMatchers.eq;
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import static org.mockito.Mockito.doAnswer;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.mockConstruction;
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import static org.mockito.Mockito.mockStatic;
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import static org.mockito.Mockito.never;
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import static org.mockito.Mockito.times;
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import static org.mockito.Mockito.verify;
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import static org.mockito.Mockito.when;
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import android.content.Context;
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import android.graphics.drawable.Drawable;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.Button;
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import android.widget.ImageView;
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import android.widget.TextView;
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import com.d4rk.androidtutorials.java.R;
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import com.d4rk.androidtutorials.java.ads.managers.NativeAdLoader;
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import com.google.android.gms.ads.AdListener;
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import com.google.android.gms.ads.AdLoader;
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import com.google.android.gms.ads.AdRequest;
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import com.google.android.gms.ads.nativead.MediaView;
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import com.google.android.gms.ads.nativead.NativeAd;
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import com.google.android.gms.ads.nativead.NativeAd.OnNativeAdLoadedListener;
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import com.google.android.gms.ads.nativead.NativeAdView;
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import org.junit.Test;
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import org.mockito.MockedConstruction;
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import org.mockito.MockedStatic;
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import java.lang.reflect.Method;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicReference;
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/**
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* Tests for {@link NativeAdLoader}.
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*/
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public class NativeAdLoaderTest {
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@Test
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public void load_whenNativeAdLoaded_populatesContainerAndLoadsAd() throws Exception {
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Context context = mock(Context.class);
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when(context.getString(R.string.native_ad_banner_unit_id)).thenReturn("unit-id");
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when(context.getString(R.string.ad)).thenReturn("Ad");
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ViewGroup container = mock(ViewGroup.class);
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when(container.getPaddingLeft()).thenReturn(4);
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when(container.getPaddingTop()).thenReturn(5);
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when(container.getPaddingRight()).thenReturn(6);
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when(container.getPaddingBottom()).thenReturn(7);
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LayoutInflater inflater = mock(LayoutInflater.class);
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NativeAdView adView = mock(NativeAdView.class);
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when(adView.getContext()).thenReturn(context);
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when(inflater.inflate(eq(R.layout.ad_home_banner_large), eq(container), eq(false))).thenReturn(adView);
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MediaView mediaView = mock(MediaView.class);
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TextView headlineView = mock(TextView.class);
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TextView bodyView = mock(TextView.class);
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Button callToActionView = mock(Button.class);
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ImageView iconView = mock(ImageView.class);
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TextView attributionView = mock(TextView.class);
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when(adView.findViewById(R.id.ad_media)).thenReturn(mediaView);
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when(adView.findViewById(R.id.ad_headline)).thenReturn(headlineView);
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when(adView.findViewById(R.id.ad_body)).thenReturn(bodyView);
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when(adView.findViewById(R.id.ad_call_to_action)).thenReturn(callToActionView);
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when(adView.findViewById(R.id.ad_app_icon)).thenReturn(iconView);
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when(adView.findViewById(R.id.ad_attribution)).thenReturn(attributionView);
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NativeAd nativeAd = mock(NativeAd.class);
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when(nativeAd.getHeadline()).thenReturn("Headline");
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when(nativeAd.getBody()).thenReturn("Body");
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when(nativeAd.getCallToAction()).thenReturn("Install");
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when(nativeAd.getAdvertiser()).thenReturn("Advertiser");
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NativeAd.Image iconAsset = mock(NativeAd.Image.class);
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Drawable iconDrawable = mock(Drawable.class);
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when(iconAsset.getDrawable()).thenReturn(iconDrawable);
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when(nativeAd.getIcon()).thenReturn(iconAsset);
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NativeAd.MediaContent mediaContent = mock(NativeAd.MediaContent.class);
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when(nativeAd.getMediaContent()).thenReturn(mediaContent);
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AdRequest adRequest = mock(AdRequest.class);
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AdListener listener = mock(AdListener.class);
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AdLoader adLoader = mock(AdLoader.class);
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AtomicReference<OnNativeAdLoadedListener> adLoadedListener = new AtomicReference<>();
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AtomicReference<List<?>> builderArgs = new AtomicReference<>();
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try (MockedStatic<LayoutInflater> inflaterStatic = mockStatic(LayoutInflater.class);
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MockedConstruction<AdLoader.Builder> builderConstruction =
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mockConstruction(AdLoader.Builder.class, (mockBuilder, constructionContext) -> {
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builderArgs.set(constructionContext.arguments());
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doAnswer(invocation -> {
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adLoadedListener.set(invocation.getArgument(0));
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return mockBuilder;
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}).when(mockBuilder).forNativeAd(any(OnNativeAdLoadedListener.class));
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when(mockBuilder.withAdListener(any(AdListener.class))).thenReturn(mockBuilder);
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when(mockBuilder.build()).thenReturn(adLoader);
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})) {
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inflaterStatic.when(() -> LayoutInflater.from(context)).thenReturn(inflater);
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NativeAdLoader.load(context, container, R.layout.ad_home_banner_large, adRequest, listener);
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verify(adLoader, times(1)).loadAd(adRequest);
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OnNativeAdLoadedListener capturedListener = adLoadedListener.get();
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assertNotNull(capturedListener);
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capturedListener.onNativeAdLoaded(nativeAd);
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AdLoader.Builder builderMock = builderConstruction.constructed().get(0);
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verify(builderMock, times(1)).forNativeAd(any(OnNativeAdLoadedListener.class));
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verify(builderMock, times(1)).withAdListener(listener);
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verify(builderMock, times(1)).build();
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verify(container, times(1)).removeAllViews();
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verify(container, times(1)).addView(adView);
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verify(container, times(1)).requestLayout();
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verify(container, times(1)).setPadding(0, 0, 0, 0);
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verify(adView, times(1)).setLayoutParams(any(ViewGroup.LayoutParams.class));
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verify(adView, times(1)).setPadding(4, 5, 6, 7);
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verify(adView, times(1)).setMediaView(mediaView);
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verify(adView, times(1)).setHeadlineView(headlineView);
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verify(adView, times(1)).setBodyView(bodyView);
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verify(adView, times(1)).setCallToActionView(callToActionView);
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verify(adView, times(1)).setIconView(iconView);
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verify(adView, times(1)).setAdvertiserView(attributionView);
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verify(headlineView, times(1)).setText("Headline");
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verify(bodyView, times(1)).setVisibility(View.VISIBLE);
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verify(bodyView, times(1)).setText("Body");
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verify(callToActionView, times(1)).setVisibility(View.VISIBLE);
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verify(callToActionView, times(1)).setText("Install");
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verify(attributionView, times(1)).setText("Ad Advertiser");
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verify(iconView, times(1)).setVisibility(View.VISIBLE);
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verify(iconView, times(1)).setImageDrawable(iconDrawable);
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verify(mediaView, times(1)).setVisibility(View.VISIBLE);
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verify(mediaView, times(1)).setMediaContent(mediaContent);
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verify(adView, times(1)).setNativeAd(nativeAd);
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}
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assertNotNull(builderArgs.get());
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assertEquals(context, builderArgs.get().get(0));
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assertEquals("unit-id", builderArgs.get().get(1));
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}
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@Test
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public void populateNativeAdView_handlesMissingOptionalAssets() throws Exception {
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NativeAd nativeAd = mock(NativeAd.class);
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when(nativeAd.getHeadline()).thenReturn("Headline");
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when(nativeAd.getBody()).thenReturn(null);
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when(nativeAd.getCallToAction()).thenReturn(null);
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when(nativeAd.getAdvertiser()).thenReturn(null);
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when(nativeAd.getIcon()).thenReturn(null);
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when(nativeAd.getMediaContent()).thenReturn(null);
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NativeAdView adView = mock(NativeAdView.class);
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Context context = mock(Context.class);
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when(adView.getContext()).thenReturn(context);
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when(context.getString(R.string.ad)).thenReturn("Ad");
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MediaView mediaView = mock(MediaView.class);
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TextView headlineView = mock(TextView.class);
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TextView bodyView = mock(TextView.class);
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Button callToActionView = mock(Button.class);
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ImageView iconView = mock(ImageView.class);
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TextView attributionView = mock(TextView.class);
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when(adView.findViewById(R.id.ad_media)).thenReturn(mediaView);
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when(adView.findViewById(R.id.ad_headline)).thenReturn(headlineView);
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when(adView.findViewById(R.id.ad_body)).thenReturn(bodyView);
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when(adView.findViewById(R.id.ad_call_to_action)).thenReturn(callToActionView);
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when(adView.findViewById(R.id.ad_app_icon)).thenReturn(iconView);
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when(adView.findViewById(R.id.ad_attribution)).thenReturn(attributionView);
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invokePopulateNativeAdView(nativeAd, adView);
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verify(adView, times(1)).setMediaView(mediaView);
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verify(adView, times(1)).setHeadlineView(headlineView);
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verify(adView, times(1)).setBodyView(bodyView);
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verify(adView, times(1)).setCallToActionView(callToActionView);
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verify(adView, times(1)).setIconView(iconView);
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verify(adView, times(1)).setAdvertiserView(attributionView);
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verify(headlineView, times(1)).setText("Headline");
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verify(bodyView, times(1)).setVisibility(View.GONE);
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verify(bodyView, never()).setText(anyString());
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verify(callToActionView, times(1)).setVisibility(View.GONE);
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verify(callToActionView, never()).setText(anyString());
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verify(attributionView, times(1)).setText("Ad");
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verify(iconView, times(1)).setVisibility(View.GONE);
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verify(iconView, never()).setImageDrawable(any(Drawable.class));
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verify(mediaView, times(1)).setVisibility(View.GONE);
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verify(mediaView, never()).setMediaContent(any());
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verify(adView, times(1)).setNativeAd(nativeAd);
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}
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private static void invokePopulateNativeAdView(NativeAd nativeAd, NativeAdView adView) throws Exception {
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Method method = NativeAdLoader.class.getDeclaredMethod("populateNativeAdView", NativeAd.class, NativeAdView.class);
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method.setAccessible(true);
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method.invoke(null, nativeAd, adView);
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}
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}

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