The Problem With High Test Coverage

Last week I attended Dan North’s workshop “Testing Faster”. Dan North is the originator of the term Behavior Driven Development (BDD). The whole workshop was amazing but there was one thing which really surprised me. Since BDD is basically another way of Test Driven Development (TDD), I would have expected that having a high test coverage was one of Dan’s goals when writing software. But what I learned was that he actually doesn’t care about the overall test coverage. He explained that in a very convincing way. In this article I wrote down what I learned about the test coverage.

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Code Reviews in Trunk Based Development

A few months ago I published a blog post about my team’s transition from Git Flow to trunk based development. We have found a way to get our code into the master branch very quickly. At the same time we are always ready to release our master with confidence which is the basis for our continuous delivery pipeline. We have less merge conflicts and we are able to enable or disable features at any time.

One topic I didn’t cover with this previous blog post is how and when we review our code. Within the last months we have found a practice that works very well for us. In this blog post you will learn how we still use small branches and pull requests without losing the benefits of trunk based development.

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From Git Flow to Trunk Based Development

I have worked with Git Flow for a few years and it helped me a lot to structure my Git branches. However, I have encountered some problems with Git Flow, most of them coming from long-living branches. The solution to solve those problems is trunk based development! It is an amazingly simple technique which is also the base for effective continuous delivery. In this article I tell you how I have made the transition from Git Flow to trunk based development with my iOS development team at HolidayCheck. You will learn what is the most important step to get there and what benefits you will get from trunk based development, so keep on reading!

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Mob Programming

Mob Programming is like Pair Programming but even more amazing! Instead of two people working together you have a whole team “working at the same time, in the same space, at the same computer, on the same thing” (

In this article you will learn how Mob Programming can help your team to share knowledge, improve the team spirit and, by the way, develop great software!

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The Team Coder: A modern software developer

Coding in a team requires more than just coding skills. A modern software developer is not only a programmer but also an architect, communicator, teacher and learner. There are many tools and practices that help developers to work effectively in a team and to create code that is maintainable and extendable by all team members.

In this article you will learn what is important if you want to develop great software with a team. Great meaning the code is working, clean and easy to change.

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