Test::Manifest overrides the default test file order. Instead of running all of the t/*.t files in ASCII-betical order, it looks in the t/test_manifest file to find out which tests you want to run and the order in which you want to run them. It constructs the right value for the build system to do the right thing.

Test::File::ShareDir is some low level plumbing to enable a distribution to perform tests while consuming its own share directories in a manner similar to how they will be once installed.

Test::File provides a collection of test utilities for file attributes.

Test::DistManifest provides a simple method of testing that a MANIFEST file matches its distribution.

Test::Requires checks to see if the module can be loaded. If this fails, then rather than failing tests this skips all tests.

Test::Filename provides functions to convert all path separators automatically.

Test::Fatal is an alternative to the popular Test::Exception. It does much less, but should allow greater flexibility in testing exception-throwing code with about the same amount of typing.

This Perl testing library focuses on testing and working with XPath expressions, most likely in the context of XML document processing.

Test::Inter is another framework for writing test scripts, which offer the ability to access specific tests in a reasonably interactive fashion, primarily for debugging purposes. Much of the syntax is loosely inspired by Test::More.

Test::Class::Most provides some more convenience when using Test::Class.

Test::YAML is a subclass of Test::Base with YAML specific support.

Test::FailWarnings adds test failures if warnings are caught.

This module exports three test functions and four diff-style functions.

This module adds a test to your Perl distribution which checks for pod coverage of all appropriate files.

Simple test harness which allows tests to be run and results automatically aggregated and output to STDOUT.

Test::Base gives a way to trivially write your own test framework base class. It concentrates on offering reusable data driven patterns, so that you can write tests with a minimum of code.

This module contains a collection of acceptance tests for implementations of Future::IO.

This module was written to ensure that a META.json file meets the specification.

Test::RunValgind checks weather Valgrind does not detect errors (such as memory leaks) in an arbitrary binary executable.

This module can test routines that manipulate random numbers by providing a known output from rand. Given a list of seeds with srand, it will return each in turn. After seeded random numbers are exhausted, it will always return 0. Seed numbers must be of a form that meets the expected output from rand as called with no arguments: they must be between 0 (inclusive) and 1 (exclusive). In order to facilitate generating and testing a nearly-one number, this module exports the function oneish, which returns a number just fractionally less than one.

Test::LeakTrace provides several functions that trace memory leaks. This module scans arenas, the memory allocation system, so it can detect any leaked SVs in given blocks.

Test::SharedFork is a utility module for Test::Builder. It makes fork(2) safe to use in test cases.

At some point or another, most programmers find they need to compare floating-point numbers for equality. The typical idiom is to test if the absolute value of the difference of the numbers is within a desired tolerance, usually called epsilon. This module provides such a function for use with Test::More.

Test::Memory::Cycle is built on top of Devel::Cycle to give you an easy way to check for these circular references.

use Test::Memory::Cycle;

my $object = new MyObject;
# Do stuff with the object.
memory_cycle_ok( $object );