Meteor login with password extension for Selenium Webdriver

gistfile1.js

    var driver = new webDriver.Builder()
        .withCapabilities({
            browserName: 'firefox'
        })
        .build();
    driver.manage()
        .timeouts()
        .setScriptTimeout(3000);
    driver.manage()
        .timeouts()
        .implicitlyWait(1000);

    driver.loginWithPassword = function (email, password) {
        var defer = webDriver.promise.defer();
        driver.executeAsyncScript(
            function (e, p) {
                var callback = arguments[arguments.length - 1];
                Meteor.loginWithPassword(e, p, callback);
            },
            email,
            password
        )
            .then(function (res) {
                res === null
                    ? defer.resolve()
                    : defer.reject(res);
            });
        return defer.promise;
    };

Test

    it('Can be viewed when logged in', function (done) {
        driver.loginWithPassword('[email protected]', 'test12');
        driver.goToPage('account');
        driver.getCurrentUrl().then(function (realURL) {
            realURL.should.equal(driver.getUrlOfPage('account'));
        }).then(done);
    });