Visual browser automation with OmniParser

Overview UI/browser automation tests can be brittle, because tests hook into implementation details of the UI which may not be relevant for actual user interaction. Visual test automation is more robust, because it uses the UI in the same way a user is supposed to do. This post explains a solution for visual browser automation. … Continue reading Visual browser automation with OmniParser

Automated regression testing DOS programs with DOSBox-X

Developing for retro platforms like DOS doesn't mean you have to abandon modern development practices. In this post, I'll share how to implement a robust end-to-end regression testing for DOS programs, eg. tools or games. There's also some code [git]. Bill of materials Ubuntu Desktop 24.04 (other distros probably work as well) awk, bash (should … Continue reading Automated regression testing DOS programs with DOSBox-X

Testing a Terraform resource deployment

I like to include smoke tests [ST] in my Terraform [TF] deployments just to make sure I didn't overlook anything obvious. One such way is to interact with a resource that invokes other resources, such as an HTTP endpoint that is routed through API gateways, application containers and databases. An easy and portable way to … Continue reading Testing a Terraform resource deployment

Tests are not just about testing

Tests in the context of software development have a surprisingly broad field of uses which exceeds "just" testing. Those further uses paint a more colourful picture of tests than just regression keepers. Tests as a component runtime: a test is the workbench on which the component is developed. Instead of constantly restarting an application server … Continue reading Tests are not just about testing