lsb-fhs tests the Filesystem Hierarchy aspects of the Linux Standard Base. The V1.0 and V2.1-X tests correspond to FHS2.0 and FHS2.1, respectively, and are now obsolete. The V2.2-X tests correspond to the FHS2.2 specification. The 2.2 tests are the current tests used for LSB 1.3 certification. The V2.3-X tests correspond to the FHS 2.3 specification and will replace the V2.2 tests for LSB 2.x certification. The V2.3 tests have yet to be formally approved by the LSB test team.
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).
WWW::PkgFind watches Web sites, FTP sites, GIT repositories, etc. for new code releases, and downloads them. In other words, it's like a Web spider tuned for downloading software packages and patches. It is also able to generate a queue of incoming packages, to allow subsequent processing (such as running tests on them).
The LSB-VSX test suite is a version of The Open Group's VSX-PCTS, being used as part of the Linux Standard Base test program. This version of the VSX-PCTS has been setup to autoconfigure on Linux systems. A front end script install.sh is used to auto install, setup and run the test suite. In theory this should allow running of the test suite by those unfamiliar with POSIX.1 and its myriad of options and thus the associated test suite configurables.
The VSW test suites are tests for the X Window System. There are two available releases. VSW release 4.1.1 is an unsupported general release of the X/Open Window Management Verification Suite. As such, it is a superset of the MIT X test suite version 1.2. VSW5 is a later version of VSW, including increased coverage for X11R6.