如何在打字稿测试中增加每个套件的mocha超时

Question

我正在尝试增加mocha测试的超时,因为它们是构成自动UI测试套件一部分的Web请求,因此可能需要比默认的2000ms更长的时间.

如果我调用mocha并将--timeout设置为5000ms左右,但默认的2000ms是不够的,那么代码本身效果很好.

我希望能够设置每个测试套件的超时,以便超时成为成功标准的一部分,这可能因具体情况而异.

before(()=>{
  var sw = require('selenium-webdriver');
  this.driver = new sw.Builder().withCapabilities(sw.Capabilities.chrome()).build();
  var c = require('chai');
  c.use(require('chai-webdriver')(this.driver));
  this.expect = c.expect;
  return this.driver.getWindowHandle();
})

after(() => {
  return this.driver.quit();
})

describe('Looking at github', () => {
  beforeEach(() => {
    this.driver.get('http://stackoverflow.com/');
  })
  describe('When we take a look at the stack overflow home page', () => {
    return it('It does not have crazy cat text in it!', () => {
      return this.expect('#h-top-questions').dom.to.not.contain.text("Just cats here!");
    });
  });
})

Answer 1

使用functionan的intead arrow然后只调用this.timeout(5000);eg

describe('When we take a look at the stack overflow home page', () => {
    return it('It does not have crazy cat text in it!', function() {
      this.timeout(5000);
      return this.expect('#h-top-questions').dom.to.not.contain.text("Just cats here!");
    });
  });

这是因为()=>捕获周围环境this.更多http://basarat.gitbooks.io/typescript/content/docs/arrow-functions.html

Answer 2

basarat 答案的另一种选择，沿着使用不同语法的类似路线（这实际上以不同的方式混淆了！）：

describe('When we take a look at the stack overflow home page', () => {
    it('does not have crazy cat text in it!', () => {
        expect('#h-top-questions').dom.to.not.contain.text("Just cats here!");
    }).timeout(5000);
});