android studio活动切换的Espresso单元测试用例

import androidx.test.espresso.Espresso;
import androidx.test.espresso.action.ViewActions;
import androidx.test.espresso.matcher.ViewMatchers;
import androidx.test.ext.junit.rules.ActivityScenarioRule;
import androidx.test.ext.junit.runners.AndroidJUnit4;

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

import com.example.myapp.MainActivity;
import com.example.myapp.SecondActivity;

@RunWith(AndroidJUnit4.class)
public class ActivitySwitchTest {

    @Rule
    public ActivityScenarioRule<MainActivity> activityScenarioRule =
            new ActivityScenarioRule<>(MainActivity.class);

    @Test
    public void testActivitySwitch() {
        // 点击按钮切换到第二个活动
        Espresso.onView(ViewMatchers.withId(R.id.button)).perform(ViewActions.click());

        // 验证是否成功切换到第二个活动
        Espresso.onView(ViewMatchers.withId(R.id.second_activity_layout))
                .check(ViewAssertions.matches(ViewMatchers.isDisplayed()));
    }
}