MainActivityTest.java

package com.example.macintosh.thebakingappproject;

import com.example.macintosh.thebakingappproject.IdlingResource.EspressoIdlingResource;
import com.example.macintosh.thebakingappproject.IdlingResource.OkHttpIdlingResource;
import com.example.macintosh.thebakingappproject.IdlingResource.SimpleIdlingResource;

import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.util.Random;

import androidx.test.core.app.ActivityScenario;
import androidx.test.espresso.Espresso;
import androidx.test.espresso.IdlingRegistry;
import androidx.test.espresso.IdlingResource;
import androidx.test.espresso.contrib.RecyclerViewActions;
import androidx.test.rule.ActivityTestRule;
import androidx.test.runner.AndroidJUnit4;
import okhttp3.OkHttpClient;

import static androidx.test.espresso.Espresso.onView;

import static androidx.test.espresso.action.ViewActions.click;
import static androidx.test.espresso.assertion.ViewAssertions.matches;
import static androidx.test.espresso.matcher.ViewMatchers.hasDescendant;
import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static androidx.test.espresso.matcher.ViewMatchers.withText;
import static org.hamcrest.core.AllOf.allOf;


@RunWith(AndroidJUnit4.class)
public class MainActivityTest {

    @Rule
    public ActivityTestRule<MainActivity> mainActivityTestRule = new ActivityTestRule<>(MainActivity.class);



    @Before
    public void prepare() {
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void scrollToPosition_mainRecipeList() {

        // First, scroll to the position that needs to be matched and click on it.
        onView(withId(R.id.mainRecipeRV)).perform(RecyclerViewActions.scrollToPosition(1));
   }




}