Protractor Google OAuth2 Manual Sign-in

login-with-google.js

    loginWithGoogle( 
        process.env.PROJ_TEST1_GMAIL_USER,
        process.env.PROJ_TEST1_GMAIL_PASS
    )

/**
  * Uses the dreaded `sleep` method because finding the password
  * by any css selector tried fails.
  * @param {string} username - A Google username.
  * @param {string} passphrase - A Google passpharse.
  * @return {Promise.<void>} Promise resolved when logged in.
  */
var loginWithGoogle = function (username, passphrase) {
    return selectWindow(1).then(() => {
        return browser.driver.findElement(by.css('[type="email"]'))
            .then((el) => {
                el.sendKeys(username + protractor.Key.ENTER);
            }).then(() => {
                browser.driver.sleep(1000);
            }).then(() => {
                browser.actions().sendKeys(passphrase + protractor.Key.ENTER).perform();
            });
    })
}

/**
* Focus the browser to the specified  window.
* [Implementation by and thanks to]{@link http://stackoverflow.com/questions/21700162/protractor-e2e-testing-error-object-object-object-has-no-method-getwindowha}
* @param  {Number} index The 0-based index of the window (eg 0=main, 1=popup)
* @return {webdriver.promise.Promise.<void>} Promise resolved when the index window is focused.
*/
var selectWindow = (index) => {
    browser.driver.wait(function () {
        return browser.driver.getAllWindowHandles().then((handles) => {
            if (handles.length > index) {
                return true;
            }
        });
    });

    return browser.driver.getAllWindowHandles().then((handles) => {
        return browser.driver.switchTo().window(handles[index]);
    });
};