Example code using WD.js and Jasmine with Sauce Labs

sauce-jasmine-example.js

// You need to have the following installed:
// https://github.com/admc/wd
// https://github.com/kriskowal/q
 
var wd = require('wd')
  , Q = require('q')
  , request = require('request')
  , assert = require('assert')
  , host = "ondemand.saucelabs.com"
  , port = 80
  , username = YOUR_USERNAME_GOES_HERE
  , accessKey = YOUR_ACCESS_KEY_GOES_HERE
  // using promisified version of webdriver
  , browser = wd.promiseRemote(host, port, username, accessKey);

browser.on('status', function(info){
  console.log('\x1b[36m%s\x1b[0m', info);
});

browser.on('command', function(meth, path, data){
  console.log(' > \x1b[33m%s\x1b[0m: %s', meth, path, data || '');
});

// general rest call helper function using promises
var api = function (url, method, data) {
  var deferred = Q.defer();
  request(
    { method: method
    , uri: ["https://", username, ":", accessKey, "@saucelabs.com/rest", url].join("")
    , headers: {'Content-Type': 'application/json'}
    , body: JSON.stringify(data)
    }
    , function (error, response, body) {
      deferred.resolve(response.body);
    }
  );
  return deferred.promise;
};

function waitUntilResultsAreAvailable(js, timeout, start){
  if (start === undefined) { start = new Date(); }
  if (new Date() - start > timeout) { throw new Error("Timeout: Element not there"); }
  return browser.eval(js)
    .then(function (jsValue) {
      if (jsValue !== null) { return jsValue; }
      else { return waitUntilResultsAreAvailable(js, timeout, start); }
    });
}

// test case
browser.init({
  browserName: 'chrome',
  tags: ["examples"],
  name: "Jasmine sample test",
  // provide build name if you want to see frontend tests
  // summary on your jobs page
  build: "frontend-tests-example"
}).then(function () {
  return browser.get("http://saucelabs.com/test_helpers/front_tests/index.html");
}).then(function () {
  // get jasmine output as JSON
  return waitUntilResultsAreAvailable("jasmine.getJSReport && jasmine.getJSReport()", 3000);
}).then(function (jsreport) {
  // make an API call to Sauce - set custom-data with 'jasmine' data
  var data = {
    'custom-data': {jasmine: jsreport}
  };
  return api(["/v1/", username, "/jobs/", browser.sessionID].join(""), "PUT", data);
}).then(function (body) {
  console.log("CONGRATS - WE'RE DONE\n",
              "Check out test results at http://saucelabs.com/jobs/" + browser.sessionID + "\n",
              body);
}).fin(function () {
  return browser.quit();
}).done();