You should see a "move" tab at the page top, if you don't: drop a note here so I can move/rename the pages for you. Don't even think to bother with copy-and-paste: move the page if possible as it preserves the edit history and logs. Existing links won't break so don't bother now.
The short titles are probably more convenient to use from the blogs and elsewhere, but within the wiki, the pipe trick is quiet useful to get a clean link label for the others as well.
Put this at the bottom of each page:
then click the Unit Testing category at the page bottom to get there, and add
If there'll be more examples than plugin, simple, and data driven, assign them all to category "Unit Testing". On the main article you can then put
<categorytree mode=pages>Unit Testing</categorytree>
--15:48, 13 May 2008 (EDT)