如何使用Espresso在UI测试中模拟textwatcher？

androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

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.filters.LargeTest;
import androidx.test.runner.AndroidJUnit4;

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

@RunWith(AndroidJUnit4.class)
@LargeTest
public class TextWatcherTest {

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

    @Test
    public void testTextWatcher() {
        // 在EditText中输入文本
        Espresso.onView(ViewMatchers.withId(R.id.editText))
                .perform(ViewActions.typeText("Hello"));

        // 执行TextWatcher的操作，例如根据输入文本改变其他UI元素的状态

        // 验证TextWatcher的功能是否正常
        // 例如，验证其他UI元素的状态是否正确改变
    }
}