gBootRoot makes the construction and development of distributions fun and simple with its Root Methods (Yard) and user-mode-linux test bed. Finish the product with a Boot Method (2-disk compression supported). Normal (non-root) users can make root filesystems and boot disks. It includes the make_debian script to create a testable user-mode-linux base Debian system, add-ons to enhance methods, and an MTD Emulator useful for running distributions made with the jffs/jffs2 filesystem.
Test::Cmd provides a framework for portable, automated testing of executable commands and scripts (in any language, not just Perl), especially those that interact with the file system. In addition to running tests and evaluating conditions, the Test::Cmd module manages and cleans up temporary workspace directories, and provides methods for creating files and directories from in-line data (here-documents).
Struct::Compare is a Perl module that compares two values of any type and structure and returns true if they are the same. It does a deep comparison of the structures, so a hash of a hash of a whatever will be compared correctly. This is especially useful for writing unit tests for your modules.
Module::Reloadable is a Perl module which can be used in any environment which runs Perl programs permanently (FastCGI, mod-perl, GTK). It is intended to reload the defined modules if they change and if the optionally-specified conditions are true. It was originally written for speeding up development in FastCGI.
quizpool is a system for administering quizzes. The quizzes can be selected from pools of questions, written in "Question Definition Language", according to rules written in "Quiz Definition Language". When a user starts a session, they are presented with a menu of quizzes available. A quiz can then be selected and completed. If the user has not taken that quiz before, the number of chances they are given to take that quiz is randomly generated from the quiz pools for that quiz. This provides an even (or changing) mix of difficult, medium, and easy questions through the various attempts. All output is created from editable HTML template files, which are separate from the program code. This was developed under Apache and Boa.