Javascript 摩卡咖啡超时2000ms错误

我不熟悉mocha测试，但是当我编写代码时

var assert=require('assert');
// ../ --->go up a directory
var MarioChar=require('../models/marioCharacter');

  //Describe tests
 //describe("description",function that executes tests)
 describe('Saving Records',function(done){
  //create tests
  //it blocks -describes a single tests
  //it("description",function that executes a test)
it('Saves a record to the database',function(){
    //if assert evaluates to true, the test passes
    //otherwise the test fails
    //marioCharacter model is expecting the properties of the object
    // that adhere to its set Schema
    var mario=new MarioChar({
      name:"mario"
    });
    mario.save().then(function(){
      console.log("saved");
      done();
    });

      //then need to save this character to the database
      //saves the character to the set database
      //save() is an async request so cannot assert save() directly
      //save implements the promise interface
});
//next test
});

---

但是，当我通过It块而不是descripe块传递done时，它会读取错误“error:超时超过2000ms。对于异步测试和钩子，请确保调用了“done（）”；如果返回承诺，请确保它已解析。“这里发生了什么？”

测试承诺的更简单方法可能是使用。你的测试看起来像

it('Saves a record to the database', async function(){
    var mario=new MarioChar({
      name:"mario"
    });
    await mario.save();
    console.log('saved');
    // Any assertions can go here after mario has been saved
});

---

我认为done参数应该在单独的测试中。就像

it（'将记录保存到数据库'，函数（done）{…}

Ya但是当我这样做时，它不起作用了。你能把它从描述函数中删除吗？对不起，我看错了。摩卡应该支持承诺，所以你不需要

done

，除非你在使用回调。你可以在承诺完成后做断言-即在

then（）中

，或者您可以看到我关于如何使用async/await的答案