JUnit 5 extension auto-registration support (?)

[reckart]

Is there already a way to use the JUnit extension auto-registration with the bnd test runner?

Simply adding a runroperties in the *.bndrun file does not seem to do the trick:

-runproperties: \
	junit.jupiter.extensions.autodetection.enabled=true,\

[bjhargrave]

Did you try

-runvm: -Djunit.jupiter.extensions.autodetection.enabled=true

[kriegfrj]

Auto-registration depends on the ServiceLoader. In addition to getting the right system property set, you might also need to:

1. use Spi-Fly to make sure that the bridge the service loader client in the Jupiter engine bundle (BSN "junit-jupiter-engine") is properly instrumented to load ServiceLoader implementations from the OSGi service registry;
2. register your extension as a service in your own bundle (declaring it as a @Component should do the trick);
3. ensure that the bundle that contains your extension is started before the test suite runs.

I have not personally tested this myself so I might not be of much further help to you in any of the details, but it theory it should work.

[bjhargrave]

Not a Bnd problem.

[kriegfrj]

This might be more appropriate in the discussion forum https://bnd.discourse.group