add-method-async.js

require('colors');
var chai = require("chai");
var chaiAsPromised = require("chai-as-promised");
chai.use(chaiAsPromised);
chai.should();

var wd;
try {
  wd = require('wd');
} catch( err ) {
  wd = require('../../lib/main');
}

// enables chai assertion chaining
chaiAsPromised.transferPromiseness = wd.transferPromiseness;

wd.addAsyncMethod(
  'elementByCssSelectorWhenReady',
  function(selector, timeout/*, cb*/) {
    // 'wd.findCallback' is a small helper which looks for the callback in a safe way, and avoids
    // hanging when the number of arguments passed is wrong.
    // There is also a 'wd.varargs' for methods with variable argument number.
    var cb = wd.findCallback(arguments);

    var _this = this;
    this.waitForElementByCssSelector(selector, timeout, function() {
      _this.elementByCssSelector(selector, cb);
    });
  }
);

var browser = wd.promiseChainRemote();

// optional extra logging
browser.on('status', function(info) {
  console.log(info.cyan);
});
browser.on('command', function(eventType, command, response) {
  console.log(' > ' + eventType.cyan, command, (response || '').grey);
});
browser.on('http', function(meth, path, data) {
  console.log(' > ' + meth.magenta, path, (data || '').grey);
});

browser
  .init({browserName:'chrome'})
  .get("http://admc.io/wd/test-pages/guinea-pig.html")
  .title()
  .should.become('WD Tests')
  .elementByCssSelector('#comments').getTagName().should.become('textarea')
  .elementByCssSelectorWhenReady('#comments', 2000)
  //   .should.eventually.exist
  // .elementByCssSelectorWhenReady('#comments', 2000)
  //   .type('Bonjour!').getValue().should.become('Bonjour!')
  .fin(function() { return browser.quit(); })
  .done();