如何使用 Karma 测试 nodejs 后端代码（testacular）

How to test nodejs backend code with Karma (testacular)

提问by Sylvain

How do I setup Karma to run my backend unit tests (written with Mocha)? If I add my backend test script to the files = [], it fails stating that requireis undefined.

如何设置 Karma 来运行我的后端单元测试（用 Mocha 编写）？如果我将我的后端测试脚本添加到files = []，它会失败，说明require未定义。

采纳答案by Dan Kohn

You don't. Karma is only for testing browser-based code. If you have a project with mocha tests on the backend and karma/mocha on the front end, try editing your package.json under scripts to set test to: mocha -R spec && karma run karma.con

你没有。Karma 仅用于测试基于浏览器的代码。如果您有一个项目，后端有 mocha 测试，前端有 karma/mocha 测试，请尝试在脚本下编辑 package.json 以将 test 设置为：mocha -R spec && karma run karma.con

Then, if npm testreturns true, you'll know it's safe to commit or deploy.

然后，如果npm test返回 true，您就会知道提交或部署是安全的。

回答by Sylvain

It seems like it cannot be done (thanks @dankohn). Here is my solution using Grunt:

似乎无法完成（感谢@dankohn）。这是我使用 Grunt 的解决方案：

• Karma: update your karma.conf.js file

  • set autoWatch = false;
  • set singleRun = true;
  • set browsers = ['PhantomJS'];(to have inline results)

• Grunt:

  • npm install grunt-contrib-watch grunt-simple-mocha grunt-karma
  • configure the two grunt tasks (see grunt file below)

• Karma：更新你的 karma.conf.js 文件

  • 放 autoWatch = false;
  • 放 singleRun = true;
  • 设置browsers = ['PhantomJS'];（具有内联结果）

• 咕噜声：

  • npm install grunt-contrib-watch grunt-simple-mocha grunt-karma
  • 配置两个 grunt 任务（参见下面的 grunt 文件）

Gruntfile.js:

Gruntfile.js：

module.exports = function (grunt) {
  grunt.loadNpmTasks('grunt-simple-mocha');
  grunt.loadNpmTasks('grunt-karma');

  grunt.initConfig({
    simplemocha: {
      backend: {
        src: 'test/server-tests.js'
      }
    },
    karma: {
      unit: {
        configFile: 'karma.conf.js'
      }
    }
  });

  // Default task.
  grunt.registerTask('default', ['simplemocha', 'karma']);
};

• Grunt (optional): configure grunt-watch to run after changing spec files or files to be tested.

• run all using gruntcommand.

• Grunt（可选）：配置 grunt-watch 在更改规范文件或要测试的文件后运行。

• 使用grunt命令运行所有。