// Copyright 2017 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter_driver/flutter_driver.dart'; import 'package:test/test.dart' hide TypeMatcher, isInstanceOf; void main() { group('button tap test', () { FlutterDriver driver; setUpAll(() async { driver = await FlutterDriver.connect(); }); tearDownAll(() async { if (driver != null) driver.close(); }); test('tap on the button, verify result', () async { final SerializableFinder batteryLevelLabel = find.byValueKey('Battery level label'); expect(batteryLevelLabel, isNotNull); final SerializableFinder button = find.text('Get Battery Level'); await driver.waitFor(button); await driver.tap(button); String batteryLevel; while (batteryLevel == null || batteryLevel.isEmpty) { batteryLevel = await driver.getText(batteryLevelLabel); } expect(batteryLevel, isNotEmpty); }); }); }