|Original author(s)||Michael G Schwern|
|Developer(s)||Chad 'Exodist' Granum|
|Initial release||April, 2001|
|Type||Unit testing module|
|License||Dual-licensed Artistic License and GPL|
Test::More is a unit testing module for Perl. Created and maintained by Michael G Schwern with help from Barrie Slaymaker, Tony Bowden, chromatic, Fergal Daly and perl-qa. Introduced in 2001 to replace Test.pm, Test::More simplified and re-energized the culture of testing in Perl leading to an explosion of new testing modules and a strongly test driven community.
Test::More is the most popular Perl testing module, as of this writing about 80% of all CPAN distributions make use of it. Unlike other testing systems, Test::More is not a framework but can be used in concert with other testing libraries via a shared Test::Builder object. As a result, Test::More provides only the baseline testing functions leaving other libraries to implement more specific and sophisticated functionality. This removes what would otherwise be a development bottleneck and allows a rich eco-system of specialized niche testing functions.
Test::More is not a complete testing framework. Rather, test programs written with Test::More output their results as TAP which can then either be interpreted by a human, or more usually run through a TAP parser such as Test::Harness. It is this separation between test program and test result interpreter via a common protocol which allows Perl programmers to develop so many different testing modules and use them in combination. Additionally, the TAP output can be stored and reinterpreted later providing a historical record of test results.
In January–March 2014 Michael Schwern transferred ownership of Test::More and related modules to Chad 'Exodist' Granum. On May 10, 2016 Exodist released version 1.302015 which included a complete refactor and partial rewrite of the internals. The new version includes major API updates and introduced several enhanced features. Extreme care was taken to preserve backwards compatibility for third party tools.
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