错误 UnhandledPromiseRejectionWarning 尝试测试

Question

我在尝试运行我的测试时遇到此错误：

UnhandledPromiseRejectionWarning: Unhandled promise rejection 
(rejection id: 1): TypeError: Cannot read property 'body' of undefine

我只需要 "captcha" 得到真实的结果。我对我的代码应用的任何更改都会得到相同的结果，我尝试删除异步函数，但我仍然遇到同样的问题。

这里是我的测试代码：

import proxyquire from 'proxyquire';
import assert from 'assert';
import chai from 'chai';
const expect = chai.expect;

const loggerStub ={
  log:()=>{
  return;
  }
}

const lodashStub = ()=>{
 result = undefined;
}
const validationStub = {
  validation:()=>{
   return Promise.resolve({
   data:{
     success:true
        }
      });
     }
    }

const req = {
 body:{
 captchaResponse: true
   }
  }

 const res = {
  status: (status) => {
   return {
   send: () => {
    return;
    }
   }
  }
 }

 describe('Probando captcha', ()=>{
 describe('Validación de captcha', ()=>{
  it('Captcha validado OK', (done)=>{
    const captcha = proxyquire('../src/controllers/captcha',{
      '../domain/captcha': validationStub,
      '../core/logger': loggerStub,
      'lodash': lodashStub
    });
    const next = () => {
      console.log('llegó al next');
      expect(captcha.validation()).to.be.true;
      done();
    }
    setTimeout(() => {
      captcha.validation(req, res, next);
    }, 200);
   });
 });
});

这是我的代码：

import { get } from "lodash";
import captcha from "../domain/captcha";
import logger from "../core/logger";
require("babel-polyfill");

const validation = async (req, res, next) => {
 if (!req.body.captchaResponse) {
  logger.log("info", "MISSING CAPTCHA PARAMETERS");
  return res.status(422).send();
 }
 const captchaResponse = req.body.captchaResponse;
 console.log(req.body.captchaResponse);

 try {

   const result = await captcha.validation(captchaResponse);
    if (get(result, "data.success")) {
     logger.log("info", "CAPTCHA VALIDATION OK");
     next();
     return;
   } else {
   logger.log("info", "FAIL CAPTCHA VALIDATION");
  return res.status(422).send();
  }
 } catch (e) {
 console.log(e);
 logger.log("info", "ERROR CAPTCHA VALIDATION");
 return res.status(422).send();
 }
};

export default { validation };

我的package.json测试：

"test": "mocha --compilers js:babel-register babel-polyfill ./test/ -- 递归

Answer 1

next () 定义中的以下行导致问题

expect(captcha.validation()).to.be.true;

您需要将 req, res, next 包含到 captcha.validation() 中，或者完全删除此行。

为什么？ 因为函数需要三个参数，当它得到 none 时，你在 [=20] 上得到 undefined =]req.body.

错误 UnhandledPromiseRejectionWarning 尝试测试

Error UnhandledPromiseRejectionWarning trying to testing

mocha.js

node.js

chai