Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.
joomla-browser Codeception Module
Joomla automated testing swiss knife
Tools and Tasks based on Robo.li for Joomla Extension Development and Releases
Composer distribution of Selenium Server Standalone, the browser automation framework. Adds a executable to your composer bin directory.
Robo tasks for Joomla Quality Assurance
Abandoned! See joomla-projects/joomla-testing-robo