Flutter单元测试

集成测试

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  1. 1. integration_test
  2. 2. 基本使用
    1. 2.1. 1. 添加配置
    2. 2.2. 2. 根目录下新建test_driver文件夹，编写integration_test.dart文件
    3. 2.3. 3. 根目录新建integration_test文件夹，编写app_test.dart文件
    4. 2.4. 4. 运行
  3. 3. 统计覆盖率
  4. 4. 参考文档

integration_test

集成测试框架，可分析测试用例的性能指标

官方文档：https://flutter.cn/docs/cookbook/testing/integration/introduction

基本使用

1. 添加配置

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dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_lints: ^1.0.0
  mockito:
  integration_test:
    sdk: flutter
  flutter_driver:
    sdk: flutter

2. 根目录下新建test_driver文件夹，编写integration_test.dart文件

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import 'dart:io';
import 'package:integration_test/integration_test_driver_extended.dart';

Future<void> main() => integrationDriver(
    onScreenshot: (String screenshotPath, List<int> screenshotBytes) async {

      final File image = File(screenshotPath);
      final dir = image.parent;
      print(image);

      if(!await dir.exists()) await dir.create(recursive: true);
      image.writeAsBytesSync(screenshotBytes);

      return true;

    }
);

3. 根目录新建integration_test文件夹，编写app_test.dart文件

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void main() async {
  // 确保Flutter框架已经初始化完成
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  
  testWidgets('test app', (widgetTester) async {
    expect(XDragonApp(), isA<StatefulWidget>());
  });
  
}

4. 运行

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# --flavor 指定develop、staging、release
# --driver  指定驱动文件
# --target 指定测试用例，可以不设置driver，默认driver名字为测试用例名字_test.dart
# 比如：target的名字为app_feature.dart，则driver名字为app_feature_test.dart

flutter driver --driver=test_driver/integration_test.dart --target=integration_test/app_test.dart --flavor development

统计覆盖率

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# Generate `coverage/lcov.info` file
# 运行测试脚本
flutter test --coverage

# Generate HTML report# Note: on macOS you need to have lcov installed on your system (`brew install lcov`) to use this:

# 将生成文件转换成html文件
genhtml coverage/lcov.info -o coverage/html

# Open the report
open coverage/html/index.html

参考文档