I have a package A that has file-based integration with package B, i.e. A writes files that B can read, but neither A depends on B, nor vise versa. I want to write a test for this integration, but don't want to include B in REQUIRE, since A may be used completely without it.
I'm wondering if there's a way to specify requirement for test time only. If not, what are general recommendations in this case?
