packages/webview_flutter/example/android/app/src/androidTestDebug/java/io/flutter/plugins/webviewflutterexample/MainActivityTest.java

package io.flutter.plugins.webviewflutterexample;

import androidx.test.rule.ActivityTestRule;
import dev.flutter.plugins.integration_test.FlutterTestRunner;
import io.flutter.embedding.android.FlutterActivity;
import org.junit.Rule;
import org.junit.runner.RunWith;

@RunWith(FlutterTestRunner.class)
public class MainActivityTest {
  @Rule
  public ActivityTestRule<FlutterActivity> rule = new ActivityTestRule<>(FlutterActivity.class);
}