node.js – chai-http写完了

有什么问题？

码：

var chai = require('chai');
var chaihttp = require('chai-http');
var server = require('../server-app');
var should = chai.should();
var fs = require('fs');

chai.use(chaihttp);


describe('server',function() {
  it('should work..',function (donE){
    var req = chai.request(server).post('/speech');
    fs.createReadStream('./test.wav').pipe(req);
    req.end(function (err,res){
        console.log(err);//outputs: [Error: write after end]
        done();
    });
  });
});