android {
    compileSdkVersion 28
    defaultConfig {
              testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

// Required -- JUnit 4 framework
testImplementation 'junit:junit:4.12'
// Optional -- Mockito framework（可选，用于模拟一些依赖对象，以达到隔离依赖的效果）
testImplementation 'org.mockito:mockito-core:2.19.0'


androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test:rules:1.2.0'

package com.immortals.tw;

import android.Manifest;
import android.util.Log;

import com.global.sdk.permission.request.CheckPermission;

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

import java.util.List;

import androidx.test.espresso.Espresso;
import androidx.test.filters.LargeTest;
import androidx.test.rule.ActivityTestRule;
import androidx.test.runner.AndroidJUnit4;

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.RootMatchers.isDialog;
import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static androidx.test.espresso.matcher.ViewMatchers.withText;

/**
 * Created by lhy on 2020/2/22.
 * click() 点击view
 * clearText() 清除文本内容
 * swipeLeft() 从右往左滑
 * swipeRight()    从左往右滑
 * swipeDown() 从上往下滑
 * swipeUp()   从下往上滑
 * click() 点击view
 * closeSoftKeyboard() 关闭软键盘
 * pressBack() 按下物理返回键
 * doubleClick()   双击
 * longClick() 长按
 * scrollTo()  滚动
 * replaceText()   替换文本
 * openLinkWithText()  打开指定超链
 * <p>
 * View 没有显示：onView(...).check(matcher(not(isDisplayed())))；
 * View 不在视图结构中：onView(...).check(doesNotExist())；
 * <p>
 * Toast并没有在我们的常规视图中，Android支持多窗口，如果我们使用常规的方式是无法检测到Toast的，所以这里需要使用inRoot()来进行对Toast的匹配：
 * onView(withText("South China Sea"))
 * .inRoot(withDecorView(not(is(getActivity().getWindow().getDecorView()))))
 * .perform(click());
 * <p>
 * https://blog.csdn.net/jiashuai94/article/details/78792261?utm_source=distribute.pc_relevant.none-task
 * https://blog.csdn.net/qiang_xi/article/details/52933593?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task
 
*/

@RunWith(AndroidJUnit4.class)
@LargeTest
public class MainActivityTest {
    final String TAG = this.getClass().getSimpleName();
    @Rule
    public ActivityTestRule<MainActivity> activityTestRule = new ActivityTestRule<>(MainActivity.class);

    @Test
    public void permissionsNoticeTest()throws Exception {

//        ViewInteraction appCompatButton = onView(allOf(withId(R.id.tv_close_game), isDisplayed()));
//        //执行按钮的点击操作
//        appCompatButton.perform(click());
//        try {
//            Thread.sleep(5000);
//        } catch (InterruptedException e) {
//            e.printStackTrace();
//        }
        String[] permissions = {Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE};
        List<String> list = CheckPermission.checkPermissionDenied(activityTestRule.getActivity(), permissions);
        if (list.size() == 0) {
            Log.i(TAG, "权限-已授权");
        } else {
            Log.i(TAG, "权限-申请开始");
            Espresso.onView(withId(R.id.tv_close_game)).check(matches(isDisplayed()));
            Log.i(TAG, "权限-权限弹窗展示成功");
            onView(withId(R.id.tv_premissions_notices_kf)).perform(click());
            try {
                onView(withText("Allow")).inRoot(isDialog()).perform(click());
            }catch (Exception e){
                e.printStackTrace();
            }
//        onView(withText("Allow")).perform(click());
            Log.i(TAG, "权限-申请结束");
        }
//        onView(withText("显示绑定页面123")).perform(click());
        //通过id找到textview，并判断是否与文本匹配
        //Espresso.onView(withId(R.id.textView)).check(matches(withText("计算结果：6")));
        //通过文本"Item 0"找到view，并检查是否显示，然后执行点击事件，此时会弹出对话框
//        Espresso.onView(withText("Item 0")).check(matches(isDisplayed())).perform(click());
        //通过文本"Item 2"找到view，并检查是否显示，然后执行点击事件，此时会弹出对话框
//        Espresso.onView(withText("Item 2")).check(matches(isDisplayed())).perform(click());
//        执行点击返回按钮事件，关闭对话框
//        Espresso.pressBack();
        //通过id找到recycleview，然后执行滑动事件，滑动到21项
//        Espresso.onView(ViewMatchers.withId(R.id.recycleview)).perform(RecyclerViewActions.scrollToPosition(21));
        //通过文本"Item 20"找到view，并检查是否显示，然后执行点击事件，此时会弹出对话框
//        Espresso.onView(withText("Item 20")).check(matches(isDisplayed())).perform(click());

        //通过name为"word"找到搜索输入框
      /*  onWebView().withElement(findElement(Locator.NAME, "word"))
                //往输入框中输入字符串"android"
                .perform(DriverAtoms.webKeys("android"))
                //通过id为"index-bn"找到"百度一下"按钮
                .withElement(DriverAtoms.findElement(Locator.ID, "index-bn"))
                //执行点击事件
                .perform(webClick())
                //通过id为"results"找到结果div
                .withElement(DriverAtoms.findElement(Locator.ID, "results"))
                //检查div中是否包含字符串"android"
                .check(WebViewAssertions.webMatches(DriverAtoms.getText(), Matchers.containsString("android")));*/



    }


}

https://blog.csdn.net/weixin_40953487/article/details/87697404