BramYeh

class ItemPage : Page() {

    override fun verify(): Page {
        Espresso.onView(withId(R.id.productitem_product_name))
                .check(matches(withEffectiveVisibility(ViewMatchers.Visibility.VISIBLE)))
        return this
    }

    fun withTitle(keyword: String): ItemPage {
        Espresso.onView(withId(R.id.productitem_product_name))

BramYeh

import android.os.SystemClock
import androidx.test.espresso.Espresso

open class Page {

    inline fun <reified T : Page> on(): T {
        // reference: https://blog.kotlin-academy.com/creating-a-random-instance-of-any-class-in-kotlin-b6168655b64a
        val page = T::class.constructors.first().call()
        page.verify()
        return page

BramYeh

package com.bram.demo.test.models.gson

import com.google.gson.GsonBuilder
import org.junit.Assert
import org.junit.Test

class GsonKotlinTest {

    // Data Class + some property has default value = default value doesn't work.
    data class DataClass1(

BramYeh

import com.google.android.youtube.player.YouTubePlayer.OnInitializedListener;

public class YouTubeDemoFragment extends android.support.v4.app.Fragment {
    
    private YouTubePlayerView mYouTubePlayerView;
    private Bundle mYouTubePlayerState;
    private OnInitializedListener mOnYoutubePlayerInitializedListener;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {

BramYeh

package com.google.android.youtube.player;

public class YouTubePlayerViewUtils {

    public static YouTubePlayerView createYouTubePlayerView(final Activity activity,
                                                            final YouTubePlayer.OnInitializedListener initializedListener,
                                                            final Bundle playerState) {
        // create YoutubePlayerView by private-package constructor                                
        final YouTubePlayerView view = new YouTubePlayerView(context, /*AttributeSet*/ null, /*defStyleAttr*/ 0,
                new YouTubePlayerView.b() {

BramYeh

package com.google.android.youtube.player;

public class YouTubePlayerFragment extends Fragment implements Provider {
    private final YouTubePlayerFragment.a a = new YouTubePlayerFragment.a((byte)0);
    private Bundle b;
    private YouTubePlayerView c;
    private String d;
    private OnInitializedListener e;
    private boolean f;

BramYeh

package com.google.android.youtube.player;

public class YouTubeBaseActivity extends Activity {
    private YouTubeBaseActivity.a a;
    private YouTubePlayerView b;
    private Bundle d;

    public YouTubeBaseActivity() {
    }

BramYeh

package com.google.android.youtube.player;

public final class YouTubePlayerView extends ViewGroup implements Provider {
    private final YouTubePlayerView.b c;
    private com.google.android.youtube.player.internal.b d;
    private View f;
    private Provider h;
    private Bundle i;
    ....

BramYeh

private static class BottomSheetViewPagerListener extends ViewPager.SimpleOnPageChangeListener {
    private final ViewPager mViewPager;
    private final ViewPagerBottomSheetBehavior<View> mBehavior;

    private BottomSheetViewPagerListener(ViewPager viewPager, View bottomSheetParent) {
        mViewPager = viewPager;
        mBehavior = ViewPagerBottomSheetBehavior.from(bottomSheetParent);
    }

    @Override

BramYeh

package android.support.design.widget;

import android.support.v4.view.ViewCompat;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;

import java.lang.ref.WeakReference;

/**