ZombieJS Event Behavior Questions

zombie-test output

$ coffee zombie-test.coffee
:: REQUEST ::
requesting http://google.com/
:: REDIRECT ::
req.time = 1365965486011
res.time = undefined
time to redirect = NaN ms
redirecting to http://www.google.com/
:: RESPONSE ::
response = 292 ms
total time = 291
done

zombie-test.coffee

Browser = require 'zombie2'

b = new Browser()
b.features = 'no-scripts no-css'

requestStart = null

b.on 'request', ( req ) ->
  console.log ":: REQUEST ::"
  requestStart = Date.now()
  console.log 'requesting ' + req.url
b.on 'redirect', ( req, res ) ->
  console.log ":: REDIRECT ::"
  resTime = res.time - req.time
  console.log "req.time = #{req.time}"
  console.log "res.time = #{res.time}"
  console.log "time to redirect = #{resTime} ms"
  console.log 'redirecting to ' + res.url
b.on 'response', ( req, res ) ->
  console.log ":: RESPONSE ::"
  totalTime = Date.now() - requestStart
  resTime = res.time - req.time
  console.log "response = #{resTime} ms"
  console.log "total time = #{totalTime}"

b.visit 'http://google.com/', () ->
  console.log 'done'