The Test::WriteVariants module provides for the dynamic generation of tests in nested combinations of contexts.

Test::TrailingSpace tests for trailing spaces in Perl source files.

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

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

This module performs various checks on a module's Regexp::Pattern patterns.

Test::Tester allows testing of test modules based on Test::Builder with a minimum of effort.

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

Testing code can involve making sure that files are created and deleted as expected. Doing this manually can be error prone, as it's easy to forget a file, or miss that some unexpected file was added. This module simplifies maintaining test directories by tracking their status as they are modified or tested with this API, making it simple to test both individual files, as well as to verify that there are no missing or unknown files.

Test::EOL lets you check for the presence of trailing whitespace and/or windows line endings in your perl code.

This module provides some drop-in replacements for the string comparison functions of Test::More, but which are more suitable when you test against long strings.

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.

There are a number of different situations (like testing caching code) where you want to want to do a number of tests, and then verify that some underlying subroutine deep within the code was called a specific number of times.

Test::SubCalls module provides a number of functions for doing testing in this way in association with your normal Test::More (or similar) test scripts.

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

Test::Deep compares two structures by going through each level, ensuring that the values match, that arrays and hashes have the same elements and that references are blessed into the correct class. It also handles circular data structures without getting caught in an infinite loop.

This module is a collection of tests useful for dealing with UTF-8 strings in Perl. This module has two types of tests: The validity tests check if a string is valid and not corrupt, whereas the characteristics tests will check that string has a given set of characteristics.

Loading this plugin causes your tests to fail if there any warnings while they run. Each warning generates a new failing test and the warning content is outputted via diag.

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::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::Simple contains basic utilities for writing tests.

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

This module provides a few convenience methods for testing warning based code.

Testing code which forks is problematic because each test has a number associated with it. Coordinating the test number amongst the parent and child processes is complicated. Test::Fork provides a function to smooth over the complications.

Test::Output provides a simple interface for testing output sent to STDOUT or STDERR. A number of different utilities are included to try and be as flexible as possible to the tester.

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