Question

环境：摩卡，诗乃，node.js.为什么这个测试在8毫秒内执行，当时有5500毫秒的时间？也许我不明白什么是计时器？我的意思是，它应该扼杀执行权吗？在计时器结束之前没有完成测试。

var   sinon     = require('sinon');
var   chai      = require('chai');

 expect = chai.expect;
 should = chai.should();
 assert = chai.assert;

var clock;
beforeEach(function () {
    clock = sinon.useFakeTimers();
});

afterEach(function () {
    clock.restore();
});

it("should time out after 5000 ms", function() {
    var timedOut = false;
    setTimeout(function () {
        timedOut = true;
    }, 5000);

    timedOut.should.be.false;
    clock.tick(5500);
    timedOut.should.be.true;
});

Answer 1

我找到了使用setTimeOut在mocha中为node.js工作的方法。

// We need to pass the mocha's function 'done' that tells mocha to wait till this function is called
it('It should wait around 5 seconds', function(done){

    // We augment mocha's timeout to more than default 2000ms
    // we put more than the 5 seconds of setTimeout to asure us
    this.timeout(6 * 1000);

    setTimeout(function(){

        // tells mocha we are finished
        done();

    }, 5*1000);
});

这是茉莉花中“等待”功能的替代品。

即使使用sinon.useFakeTimer（），TimeOut也不起作用

1 个答案: