// karma.conf.js配置示例
module.exports = function(config) {
  config.set({
    browsers: ['PhantomJS'],
    frameworks: ['jasmine'],
    preprocessors: {
      '**/*.js': ['babel']
    },
    babelPreprocessor: {
      options: {
        presets: ['es2015'],
        sourceMap: 'inline'
      }
    }
  });
};

// 测试入口文件
import 'core-js/stable';
import 'regenerator-runtime/runtime';

it('异步测试示例', function(done) {
  someAsyncFunction().then(() => {
    expect(true).toBe(true);
    done();
  });
});

// karma.conf.js
client: {
  captureConsole: true,
  jasmine: {
    random: false
  }
}

// karma.conf.js
module.exports = function(config) {
  config.set({
    browsers: ['ChromeHeadless'],
    frameworks: ['jasmine'],
    // 其他配置...
  });
};