Hi,

I'm currently working on packaging dtrace which doesn't (at least
currently, may not ever) support running tests as non-root, but
does support handling installing them for later manual use.

This raises a question: how should we control installing such tests? How
should the user request that?

USE=test isn't suitable because:
a) I generally expect it not to mutate the image;
b) ago, rightly, based on this has a tinderbox check which looks for
added/removed files when tests are enabled.

I'd like to pick some name which is suitable for us to use elsewhere and
it's not really a package-specific issue. Thoughts?

Please assume the tests are large enough to justify conditional install
and have additional dependencies.

(This is arguably related to https://bugs.gentoo.org/867799 and so on
wrt dev-lang/python always installing tests.)

thanks,
sam