Mini Ruby Wiki

Here is MiniRubyWiki testing its own formatting codes:

From top to bottom, here's the features

click the PenBird for RecentChanges (you can configure an explicit RecentChanges link if you like)
everything from the thick grey bar down comes from transcluding the file wikiFormatSuite.xml
click the green format_links to (client-side) display the resources that test the Wiki link functions
click the "edit" icon next to format_commands to display its resources in edit fields
the test's content uses YamlAintMarkupLanguage, but you can use any pluggable fixture that responds to any kind of text in XML's attributes or text contents
when you use YAML, the Wiki formats its lists as tables, and appends comments
click the Test button to run the test, and display its results into the panel just below
Per BroadbandFeedback, the test results can include images
Enter a new title, and click Clone to replicate a test case. This permits rapidly adding new tests without manipulating the raw XML, or the raw Wiki source.

All of those features work without refreshing the current web page. (Think GMail ;-)

The project page and downloads:

Now double-click on LAUNCH.BAT , and navigate to that page.