Running PhantomJS tests on Travis

.travis.yml

language: ruby
rvm:
  - 1.9.3

before_script:
  - "export DISPLAY=:99.0"
  - "sh -e /etc/init.d/xvfb start"
  - bundle exec rackup ./test/config.ru 2>/dev/null &
  - sleep 2

script: phantomjs ./test/run-qunit.js "http://localhost:9292/"

run-qunit.js

function waitFor(test, complete, timeout) {
  var result, start = new Date().getTime()
  setInterval(function interval() {
    if ((new Date().getTime() - start < timeout) && !result) {
      result = test()
    } else {
      if (!result) {
        phantom.exit(1)
      } else {
        complete()
        clearInterval(interval)
      }
    }
  }, 100)
}


var page = new WebPage()

page.onConsoleMessage = function(msg) {
  console.log(msg)
}

page.open(phantom.args[0], function(status) {
  waitFor(function() {
    return page.evaluate(function(){
      var el = document.getElementById('qunit-testresult')
      return el && el.innerText.match('completed')
    })
  }, function() {
    var failures = page.evaluate(function() {
      var el    = document.getElementById('qunit-testresult'),
          fails = document.getElementsByClassName('fail')

      for (var i = 0; i < fails.length; i++)
        console.log(fails[i].innerText)

      console.log(el.innerText)

      return parseInt(el.getElementsByClassName('failed')[0].innerHTML)
    })
    phantom.exit(failures > 0 ? 1 : 0)
  }, 10000)
})