As you may agree, it is important to test your code. The resilience patterns implemented in your application are code (even if they're just a bunch of annotations). Often I saw that this is not tested thoroughly or not at all.
With Testcontainers, writing integration tests has become a commodity. We envision the same for resilience tests, so Steadybit open-sourced a small library built with the knowledge from our Chaos Engineering platform to help you write resilience tests with minimal effort and without installing extra software on your servers. The library is available on Maven Central and Github for everyone. In this post, we will add some resilience tests to a sample application using it.