Recently, we had a discussion how to create a standalone Jakarta Batch test kit (TCK). For most of the committers, it’s pretty natural to use Arquillian to abstracts tests away from how they are executed on an implementation. But Romain proposed an intriguing idea to use plain JUnit5 that got me thinking. And it didn’t stop with thinking. After a few hours of hacking, I’m now able to present a proof of concept and suggest how we could use plain JUnit5 for the TCK and also how containers can be integrated with it using good old Arquillian to avoid reinventing the wheel.