anchor.diff:  
   [source,groovy]
   ----
  -include::{test-dir}/javascript/AlertSpec.groovy[tag=async_alert,indent=0]
  +include::{real-browser-test-dir}/javascript/AlertSpec.groovy[tag=async_alert,indent=0]
   ----
   
   The possible values for the `wait` option are consistent with the <<content-dsl-wait, ones for `wait` option of content definitions>>.
  
positive.code: 
  [source,html]
  ----
  include::{test-dir}/javascript/ConfirmSpec.groovy[tag=confirm_html,indent=0]
  ----
  
  The `withConfirm()` method is used like so…
  
  [source,groovy]
  ----
  include::{test-dir}/javascript/ConfirmSpec.groovy[tag=confirm,indent=0]
  ----
  
  If a confirmation dialog is not raised by the given “actions” closure, an `AssertionError` will be thrown.
  
negative.code: 
  [source,html]
  ----
  include::{real-browser-test-dir}/javascript/AlertSpec.groovy[tag=alert_html,indent=0]
  ----
  
  The `withAlert()` method is used like so…
  
  [source,groovy]
  ----
  include::{real-browser-test-dir}/javascript/AlertSpec.groovy[tag=alert,indent=0]
  ----
  
  If an alert dialog is not raised by the given “actions” closure, an `AssertionError` will be thrown.
  