Test Driven Ajax - assert_xpath, assert_javascript, & assert_ajax

Railsers et al:

Anyone developing Ajax applications needs to read my new Short Cut, at O'Reilly:

  http://www.oreilly.com/catalog/9780596510657/
  "Test Driven Ajax (on Rails)"

The paper shows how to write an Ajax website using these new assertions:

. assert_xml - check that HTML is XHTML and parsable
. assert_xpath - parse XHTML and extract specific details
. assert_js - parse JavaScript (without Regexp!) for details
. assert_ajax - run assertions when an Ajax command completes

The paper shows how to grow a test runner in a web page. It tests a target website inside an IFRAME.