Template:Cleanup/testcases

Test of no parameters
These should not produce any clean-up categories on this page, if the template works correctly.

Test of reason without reason
In the discussion, it was shown that flipping the unnamed parameter on a template that exists on many pages may not be a good idea. Here's an example:

The real reason for cleanup will disappear, and the type of page, which is at present specified by the unnamed parameter, will become the reason!