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Add unit tests for ad utilities and native ad loader #207

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17 changes: 17 additions & 0 deletions app/src/test/java/com/d4rk/androidtutorials/java/ads/AdUtilsTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,23 @@ public void loadBanner_withAdView_loadsAd() {
verify(adView, times(1)).loadAd(any(AdRequest.class));
}

@Test
public void loadBanner_withAdView_multipleCalls_initializeOnlyOnce() {
Context context = mock(Context.class);
when(context.getApplicationContext()).thenReturn(context);
AdView adView = mock(AdView.class);
when(adView.getContext()).thenReturn(context);

try (MockedStatic<MobileAds> mobileAds = mockStatic(MobileAds.class)) {
AdUtils.loadBanner(adView);
AdUtils.loadBanner(adView);

mobileAds.verify(() -> MobileAds.initialize(context), times(1));
}

verify(adView, times(2)).loadAd(any(AdRequest.class));
}

@Test
public void loadBanner_withNativeAdBannerView_loadsAd() {
Context context = mock(Context.class);
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216 changes: 216 additions & 0 deletions app/src/test/java/com/d4rk/androidtutorials/java/ads/NativeAdLoaderTest.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,216 @@
package com.d4rk.androidtutorials.java.ads;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.mockConstruction;
import static org.mockito.Mockito.mockStatic;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import com.d4rk.androidtutorials.java.R;
import com.d4rk.androidtutorials.java.ads.managers.NativeAdLoader;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdLoader;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.nativead.MediaView;
import com.google.android.gms.ads.nativead.NativeAd;
import com.google.android.gms.ads.nativead.NativeAd.OnNativeAdLoadedListener;
import com.google.android.gms.ads.nativead.NativeAdView;

import org.junit.Test;
import org.mockito.MockedConstruction;
import org.mockito.MockedStatic;

import java.lang.reflect.Method;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;

/**
* Tests for {@link NativeAdLoader}.
*/
public class NativeAdLoaderTest {

@Test
public void load_whenNativeAdLoaded_populatesContainerAndLoadsAd() throws Exception {
Context context = mock(Context.class);
when(context.getString(R.string.native_ad_banner_unit_id)).thenReturn("unit-id");
when(context.getString(R.string.ad)).thenReturn("Ad");

ViewGroup container = mock(ViewGroup.class);
when(container.getPaddingLeft()).thenReturn(4);
when(container.getPaddingTop()).thenReturn(5);
when(container.getPaddingRight()).thenReturn(6);
when(container.getPaddingBottom()).thenReturn(7);

LayoutInflater inflater = mock(LayoutInflater.class);
NativeAdView adView = mock(NativeAdView.class);
when(adView.getContext()).thenReturn(context);
when(inflater.inflate(eq(R.layout.ad_home_banner_large), eq(container), eq(false))).thenReturn(adView);

MediaView mediaView = mock(MediaView.class);
TextView headlineView = mock(TextView.class);
TextView bodyView = mock(TextView.class);
Button callToActionView = mock(Button.class);
ImageView iconView = mock(ImageView.class);
TextView attributionView = mock(TextView.class);

when(adView.findViewById(R.id.ad_media)).thenReturn(mediaView);
when(adView.findViewById(R.id.ad_headline)).thenReturn(headlineView);
when(adView.findViewById(R.id.ad_body)).thenReturn(bodyView);
when(adView.findViewById(R.id.ad_call_to_action)).thenReturn(callToActionView);
when(adView.findViewById(R.id.ad_app_icon)).thenReturn(iconView);
when(adView.findViewById(R.id.ad_attribution)).thenReturn(attributionView);

NativeAd nativeAd = mock(NativeAd.class);
when(nativeAd.getHeadline()).thenReturn("Headline");
when(nativeAd.getBody()).thenReturn("Body");
when(nativeAd.getCallToAction()).thenReturn("Install");
when(nativeAd.getAdvertiser()).thenReturn("Advertiser");

NativeAd.Image iconAsset = mock(NativeAd.Image.class);
Drawable iconDrawable = mock(Drawable.class);
when(iconAsset.getDrawable()).thenReturn(iconDrawable);
when(nativeAd.getIcon()).thenReturn(iconAsset);

NativeAd.MediaContent mediaContent = mock(NativeAd.MediaContent.class);
when(nativeAd.getMediaContent()).thenReturn(mediaContent);

AdRequest adRequest = mock(AdRequest.class);
AdListener listener = mock(AdListener.class);
AdLoader adLoader = mock(AdLoader.class);

AtomicReference<OnNativeAdLoadedListener> adLoadedListener = new AtomicReference<>();
AtomicReference<List<?>> builderArgs = new AtomicReference<>();

try (MockedStatic<LayoutInflater> inflaterStatic = mockStatic(LayoutInflater.class);
MockedConstruction<AdLoader.Builder> builderConstruction =
mockConstruction(AdLoader.Builder.class, (mockBuilder, constructionContext) -> {
builderArgs.set(constructionContext.arguments());
doAnswer(invocation -> {
adLoadedListener.set(invocation.getArgument(0));
return mockBuilder;
}).when(mockBuilder).forNativeAd(any(OnNativeAdLoadedListener.class));
when(mockBuilder.withAdListener(any(AdListener.class))).thenReturn(mockBuilder);
when(mockBuilder.build()).thenReturn(adLoader);
})) {

inflaterStatic.when(() -> LayoutInflater.from(context)).thenReturn(inflater);

NativeAdLoader.load(context, container, R.layout.ad_home_banner_large, adRequest, listener);

verify(adLoader, times(1)).loadAd(adRequest);

OnNativeAdLoadedListener capturedListener = adLoadedListener.get();
assertNotNull(capturedListener);
capturedListener.onNativeAdLoaded(nativeAd);

AdLoader.Builder builderMock = builderConstruction.constructed().get(0);
verify(builderMock, times(1)).forNativeAd(any(OnNativeAdLoadedListener.class));
verify(builderMock, times(1)).withAdListener(listener);
verify(builderMock, times(1)).build();

verify(container, times(1)).removeAllViews();
verify(container, times(1)).addView(adView);
verify(container, times(1)).requestLayout();
verify(container, times(1)).setPadding(0, 0, 0, 0);

verify(adView, times(1)).setLayoutParams(any(ViewGroup.LayoutParams.class));
verify(adView, times(1)).setPadding(4, 5, 6, 7);
verify(adView, times(1)).setMediaView(mediaView);
verify(adView, times(1)).setHeadlineView(headlineView);
verify(adView, times(1)).setBodyView(bodyView);
verify(adView, times(1)).setCallToActionView(callToActionView);
verify(adView, times(1)).setIconView(iconView);
verify(adView, times(1)).setAdvertiserView(attributionView);

verify(headlineView, times(1)).setText("Headline");
verify(bodyView, times(1)).setVisibility(View.VISIBLE);
verify(bodyView, times(1)).setText("Body");
verify(callToActionView, times(1)).setVisibility(View.VISIBLE);
verify(callToActionView, times(1)).setText("Install");
verify(attributionView, times(1)).setText("Ad Advertiser");
verify(iconView, times(1)).setVisibility(View.VISIBLE);
verify(iconView, times(1)).setImageDrawable(iconDrawable);
verify(mediaView, times(1)).setVisibility(View.VISIBLE);
verify(mediaView, times(1)).setMediaContent(mediaContent);
verify(adView, times(1)).setNativeAd(nativeAd);
}

assertNotNull(builderArgs.get());
assertEquals(context, builderArgs.get().get(0));
assertEquals("unit-id", builderArgs.get().get(1));
}

@Test
public void populateNativeAdView_handlesMissingOptionalAssets() throws Exception {
NativeAd nativeAd = mock(NativeAd.class);
when(nativeAd.getHeadline()).thenReturn("Headline");
when(nativeAd.getBody()).thenReturn(null);
when(nativeAd.getCallToAction()).thenReturn(null);
when(nativeAd.getAdvertiser()).thenReturn(null);
when(nativeAd.getIcon()).thenReturn(null);
when(nativeAd.getMediaContent()).thenReturn(null);

NativeAdView adView = mock(NativeAdView.class);
Context context = mock(Context.class);
when(adView.getContext()).thenReturn(context);
when(context.getString(R.string.ad)).thenReturn("Ad");

MediaView mediaView = mock(MediaView.class);
TextView headlineView = mock(TextView.class);
TextView bodyView = mock(TextView.class);
Button callToActionView = mock(Button.class);
ImageView iconView = mock(ImageView.class);
TextView attributionView = mock(TextView.class);

when(adView.findViewById(R.id.ad_media)).thenReturn(mediaView);
when(adView.findViewById(R.id.ad_headline)).thenReturn(headlineView);
when(adView.findViewById(R.id.ad_body)).thenReturn(bodyView);
when(adView.findViewById(R.id.ad_call_to_action)).thenReturn(callToActionView);
when(adView.findViewById(R.id.ad_app_icon)).thenReturn(iconView);
when(adView.findViewById(R.id.ad_attribution)).thenReturn(attributionView);

invokePopulateNativeAdView(nativeAd, adView);

verify(adView, times(1)).setMediaView(mediaView);
verify(adView, times(1)).setHeadlineView(headlineView);
verify(adView, times(1)).setBodyView(bodyView);
verify(adView, times(1)).setCallToActionView(callToActionView);
verify(adView, times(1)).setIconView(iconView);
verify(adView, times(1)).setAdvertiserView(attributionView);

verify(headlineView, times(1)).setText("Headline");
verify(bodyView, times(1)).setVisibility(View.GONE);
verify(bodyView, never()).setText(anyString());
verify(callToActionView, times(1)).setVisibility(View.GONE);
verify(callToActionView, never()).setText(anyString());
verify(attributionView, times(1)).setText("Ad");
verify(iconView, times(1)).setVisibility(View.GONE);
verify(iconView, never()).setImageDrawable(any(Drawable.class));
verify(mediaView, times(1)).setVisibility(View.GONE);
verify(mediaView, never()).setMediaContent(any());
verify(adView, times(1)).setNativeAd(nativeAd);
}

private static void invokePopulateNativeAdView(NativeAd nativeAd, NativeAdView adView) throws Exception {
Method method = NativeAdLoader.class.getDeclaredMethod("populateNativeAdView", NativeAd.class, NativeAdView.class);
method.setAccessible(true);
method.invoke(null, nativeAd, adView);
}
}
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