Dart/Flutter:在测试套件之间共享通用的设置/拆卸方法

import 'package:flutter_test/flutter_test.dart';

void main() {
  setUpAll(() {
    // 执行一次性的设置代码
    print('Setting up resources...');
  });

  tearDownAll(() {
    // 执行一次性的拆卸代码
    print('Tearing down resources...');
  });

  test('Example test 1', () {
    // 测试代码
    expect(2 + 2, equals(4));
  });

  test('Example test 2', () {
    // 测试代码
    expect('hello'.length, equals(5));
  });
}

import 'package:flutter_test/flutter_test.dart';

void main() {
  setUpAllAsync((_) async {
    // 执行一次性的异步设置代码
    print('Setting up resources asynchronously...');
    await someAsyncSetup();
    complete();
  });

  tearDownAllAsync((_) async {
    // 执行一次性的异步拆卸代码
    print('Tearing down resources asynchronously...');
    await someAsyncTeardown();
    complete();
  });

  test('Example test 1', () {
    // 测试代码
    expect(2 + 2, equals(4));
  });

  test('Example test 2', () {
    // 测试代码
    expect('hello'.length, equals(5));
  });
}

Future<void> someAsyncSetup() async {
  // 模拟异步设置操作
  await Future.delayed(Duration(seconds: 1));
}

Future<void> someAsyncTeardown() async {
  // 模拟异步拆卸操作
  await Future.delayed(Duration(seconds: 1));
}