PHPUnit – unit tests, mocks, data providers, testing in Magento 2
Unit testing in PHP projects is a topic most developers know in theory but keep putting off until “when there is time”. The time never comes. I show how to get started with PHPUnit, how to write tests that actually check something meaningful, and how to mock dependencies – with examples that look like real production code.
- Published in PHP
Symfony components without the framework – Console, Validator, HttpClient
Symfony is not just a framework – it is a set of independent PHP components you can use separately in any project. Magento 2 itself uses them (Console, Filesystem, Serializer). I show a few components that genuinely help in everyday PHP and Magento work: Console for writing CLI commands, Validator for validating data, and HttpClient for communicating with external APIs.
PHP 8.0 – release and first impressions of the new features
PHP 8.0 was officially released on 26 November 2020. I wrote about the previews in July – now that I have the final version, it is time for first practical impressions. I check what works as promised, what surprised me, and what to watch out for when migrating older projects.
- Published in PHP
Varnish – VCL, cache tagging, ESI, invalidation, DDEV setup
Magento’s built-in Full Page Cache stores pages in files or Redis. It works, but it handles requests inside PHP – nginx and PHP-FPM still have to start for every request. Varnish sits in front of nginx and serves pages from memory without touching PHP. For a shop with traffic that is the difference between a second and milliseconds.
- Published in Magento / Adobe Commerce, Środowiska