如何在Espresso Android中为每个单独的测试用例重新启动应用程序

import androidx.test.core.app.ActivityScenario;
import androidx.test.espresso.Espresso;
import androidx.test.ext.junit.rules.ActivityScenarioRule;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)
public class YourTestClass {
    // ...
}

@RunWith(AndroidJUnit4.class)
public class YourTestClass {
    @Before
    public void launchApp() {
        ActivityScenario.launch(YourMainActivity.class);
    }
    
    // ...
}

@RunWith(AndroidJUnit4.class)
public class YourTestClass {
    @Before
    public void launchApp() {
        ActivityScenario.launch(YourMainActivity.class);
    }
    
    @Test
    public void yourTestCase() {
        // 编写测试逻辑
    }
}

@RunWith(AndroidJUnit4.class)
public class YourTestClass {
    @Before
    public void launchApp() {
        ActivityScenario.launch(YourMainActivity.class);
    }
    
    @Test
    public void yourTestCase() {
        // 编写测试逻辑
    }
    
    @After
    public void closeApp() {
        Espresso.pressBack();
    }
}