test-node-debug.js

'use strict'

var request = require('../index')
var http = require('http')
var tape = require('tape')

var s = http.createServer(function (req, res) {
  res.statusCode = 200
  res.end('')
})

var stderr = []
var prevStderrLen = 0

tape('setup', function (t) {
  process.stderr._oldWrite = process.stderr.write
  process.stderr.write = function (string, encoding, fd) {
    stderr.push(string)
  }

  s.listen(0, function () {
    s.url = 'http://localhost:' + this.address().port
    t.end()
  })
})

tape('a simple request should not fail with debugging enabled', function (t) {
  request.debug = true
  t.equal(request.Request.debug, true, 'request.debug sets request.Request.debug')
  t.equal(request.debug, true, 'request.debug gets request.Request.debug')
  stderr = []

  request(s.url, function (err, res, body) {
    t.ifError(err, 'the request did not fail')
    t.ok(res, 'the request did not fail')

    t.ok(stderr.length, 'stderr has some messages')
    var url = s.url.replace(/\//g, '\\/')
    var patterns = [
      /^REQUEST { uri: /,
      new RegExp('^REQUEST make request ' + url + '/\n$'),
      /^REQUEST onRequestResponse /,
      /^REQUEST finish init /,
      /^REQUEST response end /,
      /^REQUEST end event /,
      /^REQUEST emitting complete /
    ]
    patterns.forEach(function (pattern) {
      var found = false
      stderr.forEach(function (msg) {
        if (pattern.test(msg)) {
          found = true
        }
      })
      t.ok(found, 'a log message matches ' + pattern)
    })
    prevStderrLen = stderr.length
    t.end()
  })
})

tape('there should be no further lookups on process.env', function (t) {
  process.env.NODE_DEBUG = ''
  stderr = []

  request(s.url, function (err, res, body) {
    t.ifError(err, 'the request did not fail')
    t.ok(res, 'the request did not fail')
    t.equal(stderr.length, prevStderrLen, 'env.NODE_DEBUG is not retested')
    t.end()
  })
})

tape('it should be possible to disable debugging at runtime', function (t) {
  request.debug = false
  t.equal(request.Request.debug, false, 'request.debug sets request.Request.debug')
  t.equal(request.debug, false, 'request.debug gets request.Request.debug')
  stderr = []

  request(s.url, function (err, res, body) {
    t.ifError(err, 'the request did not fail')
    t.ok(res, 'the request did not fail')
    t.equal(stderr.length, 0, 'debugging can be disabled')
    t.end()
  })
})

tape('cleanup', function (t) {
  process.stderr.write = process.stderr._oldWrite
  delete process.stderr._oldWrite

  s.close(function () {
    t.end()
  })
})