Mocha.js:即使测试套件失败也要运行"after“钩子

Question

即使其中一个测试(套件)失败，也可以运行"after“钩子吗？

Answer 1

是的，当测试失败时，after和afterEach钩子都应该运行。

请参阅以下github问题以了解相关讨论和更改：#94、#125、#143、#690。

下面是一个例子来证明我的说法：

describe('test', function() {
  after(function() { console.log('after'); });
  afterEach(function() { console.log('afterEach'); });

  it('fails sync', function(done) {
    after(function() { console.log('inner after 1'); });
    throw new Error('failed');
  });

  it('fails async', function(done) {
    after(function() { console.log('inner after 2'); });
    process.nextTick(function() {
      throw new Error('failed');
    });
  });
});

它使用mocha 1.1.12生成以下输出：

  ․afterEach
․afterEach
after
inner after 1
inner after 2


  0 passing (5 ms)
  2 failing

1) test fails sync:
 Error: failed
  at Context.<anonymous> (/private/tmp/so/test/main.js:7:11)
  at Test.Runnable.run (/private/tmp/so/node_modules/mocha/lib/runnable.js:194:15)
  at Runner.runTest (/private/tmp/so/node_modules/mocha/lib/runner.js:355:10)
  at /private/tmp/so/node_modules/mocha/lib/runner.js:401:12
  at next (/private/tmp/so/node_modules/mocha/lib/runner.js:281:14)
  at /private/tmp/so/node_modules/mocha/lib/runner.js:290:7
  at next (/private/tmp/so/node_modules/mocha/lib/runner.js:234:23)
  at Object._onImmediate (/private/tmp/so/node_modules/mocha/lib/runner.js:258:5)
  at processImmediate [as _immediateCallback] (timers.js:330:15)

2) test fails async:
 Error: failed
  at /private/tmp/so/test/main.js:13:12
  at process._tickCallback (node.js:415:13)