The course was very informative. One of the biggest pain points with Drupal testing was that there was no clear and definitive guide on setting up the php unit XML file to get functional and kernel tests working right away. Your guide was fantastic and I will definitely be using it going forward in my module development for work.
Well done. You've created a really excellent resource here that has the potential to bring Drupal development forward a huge leap. You’ve managed to simplify and share some often complex seeming issues.
Following your "Automated tests" emails and they are great! Such a pleasant reading. I love how you start from the very beginning and keeping things simple, step by step.
Hi Oliver, we met briefly at the Tech Connect event in London last month. Been reading through a few of your latest posts and have found the messages valuable, especially as we spent the week learning about unit, integration and e2e testing. I have signed up to your mailing list to keep the good advice flowing!
name:Alexander Carr
title:Full Stack Software Engineer at School of Code
I had the opportunity and good fortune to work with Oliver solving two problems that I was having on a Drupal Commerce site. I have done several Drupal sites using UberCart, but since it is deprecated, I chose to use Commerce. I had searched, posted to forums, and other normal means to find answers to my problems, to no response and to no avail.
I've wanted to explore testing for a while, but as a PHP developer with 10 years of Drupal experience who'd written next to no tests, I really needed guidance. Oliver's expertise in testing and TDD motivated me to seek his help.
We use Oliver for maintaining a couple of Drupal sites for which we no longer have the skills ourselves. We became aware of Oliver through his work in the Drupal community, and about a year ago we approached him to help us with the deep dive aspects of maintaining and developing Drupal sites. He's been really helpful and very responsive. Much appreciated!
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title:Senior Systems Administrator at the University of Bristol
For over a decade we have worked with Oliver on a number of different projects. Initially our collaboration consisted of web maintenance and troubleshooting but we soon tapped Oliver to design, build and maintain a custom awards site which includes both submission and judging functionality. Oliver has deep and wide-ranging skills and I would certainly recommend his services!
Oliver is a pleasure to work with, and I would engage him again without hesitation. He communicates regularly, ensures that he meets requirements, and suggests improvements to the potential solutions to the brief.
I had the pleasure of working with Oliver whilst building the first version of our drupal based intranet. His knowledge of Drupal and the wider infrastructure required to run a site was really invaluable.
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title:Web Dev Manager / DevOps / Team Manager at Admiral Group Plc
Oliver really knows his stuff. Whether you are just starting out or looking to take your knowledge to the next level, his patient and clear way of explaining will help get you there.
I have had the pleasure of working with Oliver on several projects at Microserve. He is a natural innovator and a great mentor who inspires others to explore new technologies and approaches. He is a highly knowledgeable professional with a passion for all things Drupal and the tenacity required to get the job done well.
Oliver has been an outstanding contributor to the Drupal Association team. He is a talented developer who writes great code and applies his curiosity and love of learning to every project. He is also a fantastic team member, who gives to the team as much as he gets.
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title:Executive Director at the Drupal Association
Oliver is a skilled Drupal developer with a passion for the Drupal community. As his direct supervisor, I was able to watch Oliver grow with the Drupal Association and contribute an amazing amount of effort and integrity to all of his work.
Oliver was great to work with. He has expert knowledge with Drupal and delivered exactly what we were looking for on time. He's understanding, friendly and easy to get along with. I would enjoy working with him again in the future.
Oliver is seasoned Drupal and all round highly skilled and experienced web developer. I have worked with Oliver on an important project where he was reliable, prompt and ensured strict client deadline delivery and confidentiality at all times.
Today I saw that my Drupal.org profile is showing that I’ve been on that website for 14 years.


Drupal.org is the online home of the open-source Drupal CMS project, and where I registered to ask questions on the forums as I started to learn Drupal. More recently, it’s been where I’ve uploaded and maintain my own contributed projects and contribute patches to others, including Drupal core.