how to test window.status variable

Question

I'm using wkhtmlpdf library to convert pdf from the HTML page. this page depends on heavy javascript functions (ajax calls, google maps) so that I had to use --window-status and --javascript-delay options. I'm setting the value window.status="ready_to_print;" when everything is done. It's working properly and pdf are rendering as It should be.

Now I want to create a ruby on rails unit/integration test to check that the HTML page has rendered to the correct state. how can I test this using rpec, capybara or any other way?

Answer 1

With Capybara when you want to get access to the values of JS things you use evaluate_script. In this case that would mean

evaluate_script('window.status')

If you want to wait for that be some value you could wrap it in a loop (possibly with a timeout), or if you just want to verify it is a specific value right now

expect(evaluate_script('window.status')).to eq 'ready_to_print'

Answer 2

I don't know that there's an exposed method in the selenium ruby bindings, but the watir DSL has a Browser::status method, which is implemented as follows and should do the trick:

def status
  execute_script 'return window.status;'
end