title: Capybara testing value of hidden field
body: <p>I have a form with a hidden field that contains the current date.</p>
  
  <p>I'm trying to figure out how to write a capybara finder to:</p>
  
  <ol>
  <li>Check that the field is there</li>
  <li>Check the value of the field</li>
  </ol>
  
  <p>Is this possible with Capybara?</p>