Export lexically-available subs with Sub::Exporter

https://metacpan.org/release/Sub-Exporter-Lexical

Only use Sub::Exporter if you need it

https://metacpan.org/release/Sub-Exporter-Progressive

Retrieve names of code references

https://metacpan.org/release/Sub-Identify

Create a fake infix operator

https://metacpan.org/release/Sub-Infix

Tool to inspect subroutines

https://metacpan.org/release/Sub-Info

Install subroutines into packages easily

http://search.cpan.org/dist/Sub-Install/

Sub::Name - (re)name a sub

https://metacpan.org/release/Sub-Name

Efficient generation of subroutines via string eval

https://metacpan.org/pod/Sub::Quote

Appear to run a function in a higher stack frame

https://metacpan.org/release/Sub-Uplevel

Switch - A switch statement for Perl

https://metacpan.org/release/Switch

Try every conceivable way to get full hostname

https://metacpan.org/release/Sys-Hostname-Long

Map in a file as a Perl variable using mmap(2)

https://metacpan.org/release/Sys-Mmap

Test for and flip the taint flag without regex matches or eval

https://metacpan.org/release/Taint-Util

Ensure that a platform has weaken support

https://metacpan.org/release/Task-Weaken

Template Toolkit plugin to interface with GD modules

https://metacpan.org/release/Template-GD

Extensible template processing system

http://www.template-toolkit.org/

Color screen output using ANSI escape sequences

https://metacpan.org/release/Term-ANSIColor

Perl extension to display a progress bar

https://metacpan.org/release/Term-ProgressBar

A perl5 module for simple terminal control

Allow Term::ReadLine to use GNU readline

https://metacpan.org/release/Term-ReadLine-Gnu

Quick implementation of the minimal interface to Readline libraries

https://metacpan.org/release/Term-ReadLine-Perl

Fully-featured shell-like command line environment

https://metacpan.org/release/Term-ShellUI

Format a header and rows into a table

https://metacpan.org/release/Term-Table

Test a list of subroutines provided by a module

https://metacpan.org/release/Test-API

Simple set of building blocks for both unit and runtime testing

https://metacpan.org/release/Test-Assertions

Data Driven Testing Framework

https://metacpan.org/release/Test-Base

Provides a bits_is() subroutine for testing binary data

https://metacpan.org/release/Test-Bits

Validate your CPAN META.yml files

https://metacpan.org/release/Test-CPAN-Meta

Validate a META.yml file within a CPAN distribution

https://metacpan.org/release/Test-CPAN-Meta-YAML

Check for presence of dependencies

https://metacpan.org/release/Test-CheckDeps

Easily create test classes in an xUnit style

https://metacpan.org/release/Test-Class

Provides basic first-pass API testing for large class trees

https://metacpan.org/release/Test-ClassAPI

Check for uncleaned imports

https://metacpan.org/release/Test-CleanNamespaces

Test data structures for differences deeply

https://metacpan.org/release/Test-Deep

Ensure that your Makefile.PL specifies all module dependencies

https://metacpan.org/release/Test-Dependencies

Test all modules which depend on your module

https://metacpan.org/release/Test-DependentModules

Test::Differences - Test strings and data structures for differences

https://metacpan.org/release/Test-Differences

Check the correct line endings in your project

https://metacpan.org/release/Test-EOL

Test functions for exception based code

https://metacpan.org/release/Test-Exception

Add test failures if warnings are caught

https://metacpan.org/release/Test-FailWarnings

Incredibly simple helpers for testing code with exceptions

https://metacpan.org/release/Test-Fatal

Test file attributes

https://metacpan.org/release/Test-File

Create a fake ShareDir for your modules for testing

https://metacpan.org/release/Test-File-ShareDir

Run perl standard test scripts with statistics

http://search.cpan.org/dist/Test-Harness/

Test binary as hexadecimal string

https://metacpan.org/release/Test-HexDifferences

Assert the referential identity of a reference

https://metacpan.org/release/Test-Identity

Framework for more readable interactive test scripts

https://metacpan.org/release/Test-Inter

Test the Kwalitee of a distribution before you release it

https://metacpan.org/release/Test-Kwalitee

Traces memory leaks

https://metacpan.org/release/Test-LeakTrace

Library to test long strings

https://metacpan.org/release/Test-LongString