Hi Mats,
I've been developing the concordion - junit 5 integration. It's complex but we're making process.
Basically, we're looking at 2 options:
* Build a new TestEngine class that runs concordion tests. This provides the cleanest UI for writing tests but is much harder to support other junit 5 extensions (like Spring)
* Run concordion tests as a JUnit5 extension. This is a bit uglier from a dev perspective, but will provide a greater range of integration with other junit5 extensions.
Currently both those are working-ish but need more testing and a whole lot of code cleanup (my goal was to just get the things working - but there's lots of duplicated concordion code in the system now)
Luckily, concordion already works with junit 5 - because junit5 has a junit4 vintage test engine that will run all junit4 tests in junit 5. And I've checked that the vintage test engine runs concordion tests.
Not sure if that helps you at all!
Tim