Sebastian Bergmann gestures with both hands as he speaks. Behind him is the title slide of his talk “So you think you know PHPUnit”, in the foreground the silhouettes of people in the audience.

Photo by Niels Luigjes

SymfonyOnline

Name: SymfonyOnline
Start: 2026-01-22
End: 2026-01-23

Online

22–23 January 2026

On 22 and 23 January 2026, I was at SymfonyOnline. There I gave the presentation “Testing with(out) dependencies”.

Event Website

My talk

Talk

22 January 2026

Testing with(out) dependencies

This presentation clarifies effective strategies for using PHPUnit's test doubles to write robust, maintainable unit tests, highlighting practical techniques and common pitfalls to avoid.

More information

About me

I am Sebastian Bergmann. I started writing PHPUnit in 2000 and still maintain it. In the same year I gave my first talk at a PHP conference. As a co-founder of thePHP.cc, I help teams in training courses and through consulting and coaching with everything related to PHPUnit, with quality gates for working with LLM-based coding agents, and with supply chain security.

I helped start the PHP Foundation and serve on its board. I have also represented the interests of Open Source at the European Commission and am active in the Open Source working group of the German Informatics Society (Gesellschaft für Informatik).

Where you can meet me next is listed under events. The next dates of my training courses are in the training overview.