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test: add NativeAdLoader tests #176

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test: add NativeAdLoader tests #176

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134 changes: 134 additions & 0 deletions app/src/test/java/com/d4rk/androidtutorials/java/ads/managers/NativeAdLoaderTest.java
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package com.d4rk.androidtutorials.java.ads.managers;

import static org.mockito.Mockito.*;

import android.content.Context;
import android.graphics.drawable.Drawable;
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.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.LoadAdError;
import com.google.android.gms.ads.nativead.MediaView;
import com.google.android.gms.ads.nativead.NativeAd;
import com.google.android.gms.ads.nativead.NativeAdView;

import org.junit.Test;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

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

@Test
public void populateNativeAdViewPopulatesViews() throws Exception {
NativeAd nativeAd = mock(NativeAd.class);
when(nativeAd.getHeadline()).thenReturn("headline");
when(nativeAd.getBody()).thenReturn("body");
when(nativeAd.getCallToAction()).thenReturn("cta");
NativeAd.Image icon = mock(NativeAd.Image.class);
Drawable drawable = mock(Drawable.class);
when(icon.getDrawable()).thenReturn(drawable);
when(nativeAd.getIcon()).thenReturn(icon);
when(nativeAd.getAdvertiser()).thenReturn("advertiser");
NativeAd.MediaContent mediaContent = mock(NativeAd.MediaContent.class);
when(nativeAd.getMediaContent()).thenReturn(mediaContent);

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

Method method = NativeAdLoader.class.getDeclaredMethod("populateNativeAdView", NativeAd.class, NativeAdView.class);
method.setAccessible(true);
method.invoke(null, nativeAd, adView);

verify(headlineView).setText("headline");
verify(bodyView).setVisibility(View.VISIBLE);
verify(bodyView).setText("body");
verify(callToActionView).setVisibility(View.VISIBLE);
verify(callToActionView).setText("cta");
verify(attributionView).setText("Ad advertiser");
verify(iconView).setImageDrawable(drawable);
verify(iconView).setVisibility(View.VISIBLE);
verify(mediaView).setMediaContent(mediaContent);
verify(mediaView).setVisibility(View.VISIBLE);
verify(adView).setNativeAd(nativeAd);
}

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

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

Method method = NativeAdLoader.class.getDeclaredMethod("populateNativeAdView", NativeAd.class, NativeAdView.class);
method.setAccessible(true);
method.invoke(null, nativeAd, adView);

verify(bodyView).setVisibility(View.GONE);
verify(callToActionView).setVisibility(View.GONE);
verify(attributionView).setText("Ad");
verify(iconView).setVisibility(View.GONE);
verify(mediaView).setVisibility(View.GONE);
}

@Test
public void onAdFailedToLoadClearsContainer() throws Exception {
ViewGroup container = mock(ViewGroup.class);

Class<?> clazz = Class.forName("com.d4rk.androidtutorials.java.ads.managers.NativeAdLoader$1");
Constructor<?> ctor = clazz.getDeclaredConstructor(ViewGroup.class);
ctor.setAccessible(true);
AdListener listener = (AdListener) ctor.newInstance(container);

LoadAdError loadAdError = mock(LoadAdError.class);
listener.onAdFailedToLoad(loadAdError);

verify(container).removeAllViews();
verify(container).setVisibility(View.GONE);
}
}

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