express.json.js — express Source File

Source Code

'use strict'

var assert = require('node:assert')
var AsyncLocalStorage = require('node:async_hooks').AsyncLocalStorage
const { Buffer } = require('node:buffer');

var express = require('..')
var request = require('supertest')

describe('express.json()', function () {
  it('should parse JSON', function (done) {
    request(createApp())
      .post('/')
      .set('Content-Type', 'application/json')
      .send('{"user":"tobi"}')
      .expect(200, '{"user":"tobi"}', done)
  })

  it('should handle Content-Length: 0', function (done) {
    request(createApp())
      .post('/')
      .set('Content-Type', 'application/json')
      .set('Content-Length', '0')
      .expect(200, '{}', done)
  })

  it('should handle empty message-body', function (done) {
    request(createApp())
      .post('/')
      .set('Content-Type', 'application/json')
      .set('Transfer-Encoding', 'chunked')
      .expect(200, '{}', done)
  })

  it('should handle no message-body', function (done) {
    request(createApp())
      .post('/')
      .set('Content-Type', 'application/json')
      .unset('Transfer-Encoding')
      .expect(200, '{}', done)
  })

  // The old node error message modification in body parser is catching this
  it('should 400 when only whitespace', function (done) {
    request(createApp())
      .post('/')
      .set('Content-Type', 'application/json')
      .send('  \n')
      .expect(400, '[entity.parse.failed] ' + parseError(' \n'), done)
  })

  it('should 400 when invalid content-length', function (done) {
    var app = express()

    app.use(function (req, res, next) {
      req.headers['content-length'] = '20' // bad length
      next()
    })

    app.use(express.json())
// ... (696 more lines)