The Devel::Required module only serves a purpose in the development environment of an author of a CPAN module (or more precisely: a user of the ExtUtils::MakeMaker module). It makes sure that any changes to the required modules specified in the Makef...

From one line data dumping sanity checks to debug print statements in a large body of code I often found myself reinventing these basic solutions. Hence this module was born to help give a host of functions/functionality with a minimum of typing/effo...

For example, when you develop a webapp,you'd like to develop views and/or controllers using stubbed model modules which can return expected data. This module helps it. * With this module,you can stub some methods on exisiting moudle * This module add...

Usually we're too busy to fix things like circular refs, edge cases and so forth when we're spewing code into the editor. This is because concentration is usually too valuable a resource to throw to waste over minor issues. But that doesn't mean the ...

This module provides code coverage metrics for Perl. Code coverage metrics describe how thoroughly tests exercise code. By using Devel::Cover you can discover areas of code not exercised by your tests and determine which tests to create to increase c...

This module provides helper functions for developers of lexical pragmas (and a few functions that may be useful to non-pragma developers as well). Pragmas can be used both in older versions of perl (from 5.8.1), which had limited support, and in the ...

Devel::WxProf package is a heavy-weight subroutine profiler for perl. It collects information on the execution time of a Perl script - more specifically: on the subs called from that script. To profile a Perl script run the perl interpreter with the ...

Devel::Plumber is a memory leak finder for C programs, implemented in Perl. It uses GDB to walk internal glibc heap structures, so it can work on either a live process or a core file. Devel::Plumber treats the C heap of the program under test as a co...

The Devel::Profile package is a Perl code profiler. This will collect information on the execution time of a Perl script and of the subs in that script. This information can be used to determine which subroutines are using the most time and which sub...

Devel::EndStats runs in the END block, displaying various statistics about your program, such as: * how many seconds the program ran; * how many required files and total number of lines loaded (from %INC); * etc. Some notes/caveats: Devel::EndStats s...

The "Catalyst-Devel" distribution includes a variety of modules useful for the development of Catalyst applications, but not required to run them. This is intended to make it easier to deploy Catalyst apps. The runtime parts of Catalyst are now known...

This module provides a toolset for raw memory manipulation (both reading and writing), together with some tools making it easier to examine memory chunks. All provided routines expect memory addresses as regular integers (not as their packed represen...

*I get the feeling that the computer just skips over all the comments.* -- a grad student Devel::Comments is a source filter for your Perl code, intended to be used only during development. Specially-formatted 'smart' comments are replaced by executa...

When testing software it's often useful to use dummy, or 'mock', objects to represent external dependencies. This practice presupposes that the code being tested is object-oriented and can usually simply accept these objects to its constructor, i.e. ...

TAP friendly (via Test::More::diag()) version of Devel::Kit. See Devel::Kit for details....

Many times we find ourselves needing to deprecate code or have a deadline and just don't have time to refactor. Instead of trying to remember about this, posting it to a wiki or sending an email, it's better to have an automatic way to deprecate some...

Although it is common to check $@ to determine if a call to "eval" failed, it is easy to make "eval" fail while leaving $@ empty. Using "Devel::EvalError" encourages you to use more reliable ways to check whether "eval" failed while also giving you a...