Selenium, ChromeDriver start app

Question

I would like to test a Chrome App with the help of WebDriver.

Normally when you want to directly start an App you pass the argument --app-id for e.g:

/opt/google/chrome/google-chrome --app-id=olddgoefnehjeogjhpcpolcnnifnglkp

Bur I'm not able to start my Chrome App with chromedriver:

I tried:

Selenium::WebDriver.for :chrome, :args => ["--app-id=olddgoefnehjeogjhpcpolcnnifnglkp"]

Steps to reproduce:

1. Go to the Chrome Web Store

2. Install an App

3. Go to preferences --> Extensions

4. Enable Developer-Modus

5. Now you can see the App-Id for eg: ID: olddgoefnehjeogjhpcpolcnnifnglkp

6. Try to start WebDriver with this option:

   driver = Selenium::WebDriver.for :chrome, :args => ["--app-id=olddgoefnehjeogjhpcpolcnnifnglkp"]
   

Here is a list of arguments that should be valid for chromedriver: http://peter.sh/experiments/chromium-command-line-switches/

Thanks for your help!