app_test.dart

import 'dart:io';
import 'package:path/path.dart';

// Imports the Flutter Driver API.
import 'package:flutter_driver/flutter_driver.dart';
import 'package:test/test.dart';

const path = r'C:\Users\omerg\AppData\Local\Android\Sdk';

Future<void> grantPermissions() async {
  final adbPath = join(
    path,
    'platform-tools',
    Platform.isWindows ? 'adb.exe' : 'adb',
  );
  await Process.run(adbPath, [
    'shell',
    'pm',
    'grant',
    'com.whatsappclone.WhatAppClone',
    'android.permission.INTERNET'
  ]);
}

void main() {
  group('NewsAPI App Test -', () {
    FlutterDriver driver;

    // Connect to the Flutter driver before running any tests.
    setUpAll(() async {
      // grant device permission
      await grantPermissions();
      driver = await FlutterDriver.connect();
    });

    // Close the connection to the driver after the tests have completed.
    tearDownAll(() async {
      if (driver != null) {
        driver.close();
      }
    });

    test('verifies the articles view list contains a specific article',
        () async {
      // Create three SerializableFinders and use these to locate specific
      // widgets displayed by the app. The names provided to the byValueKey
      // method correspond to the Keys provided to the widgets in home_view.

      // Articles listview
      final listFinder = find.byValueKey('articles_list');
      // Specifie items in the listview
      final firstItemFinder = find.byValueKey('article20');
      final secondItemFinder = find.byValueKey('article10');

      // 'Refresh' FAB
      final refresh = find.byValueKey('FAB');

      // Scroll through the list
      await driver.scrollUntilVisible(
        listFinder,
        // Until finding this item
        firstItemFinder,
        // To scroll down the list, provide a negative value to dyScroll.
        // Ensure that this value is a small enough increment to
        // scroll the item into view without potentially scrolling past it.
        //
        // To scroll through horizontal lists, provide a dxScroll
        // property instead.
        dyScroll: -300.0,
      );

      // tap the 'refresh' FAB
      await driver.tap(refresh);

      // Scroll through the list
      await driver.scrollUntilVisible(
        listFinder,
        // Until finding this item
        secondItemFinder,
        // To scroll down the list, provide a negative value to dyScroll.
        // Ensure that this value is a small enough increment to
        // scroll the item into view without potentially scrolling past it.
        dyScroll: -300.0,
      );
      // should launch article from the device browser
      await driver.tap(secondItemFinder);
    });
  });
}