- David Hayes. How to Start Unit Testing WordPress Plugins. wpshout, 2018.
- Collins Agbonghama. An Introduction to Automated Testing of WordPress Plugins with PHPUnit. smashing magazine, 2017.
- Pippin Williamson. Unit Tests for WordPress Plugins Series. 2014-2015.
- Zack Grossbart. Writing Unit Tests for WordPress Plugins. smashing magazine, 2012.
- WP Safe Updates – In cases where a host doesn’t offer a staging environment, WP Safe Updates create a sandbox environment so that plugins can be tested before upgrading.
- Sarah Gooding. WP Safe Updates Plugin. WP Tavern, 2016.
- FakerPress – Creates test data for WP install.