button_tap_test.dart 1.07 KB
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// 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';
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import 'package:test/test.dart' hide TypeMatcher, isInstanceOf;
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void main() {
  group('button tap test', () {
    FlutterDriver driver;

    setUpAll(() async {
      driver = await FlutterDriver.connect();
    });

    tearDownAll(() async {
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      if (driver != null)
        driver.close();
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    });

    test('tap on the button, verify result', () async {
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      final SerializableFinder batteryLevelLabel =
          find.byValueKey('Battery level label');
      expect(batteryLevelLabel, isNotNull);

      final SerializableFinder button = find.text('Refresh');
      await driver.waitFor(button);
      await driver.tap(button);

      String batteryLevel;
      while (batteryLevel == null || batteryLevel.contains('unknown')) {
        batteryLevel = await driver.getText(batteryLevelLabel);
      }

      expect(batteryLevel.contains('%'), isTrue);
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    });
  });
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}