Naah - you can just copy a file like I posted above into your xt/ (or t/) directory. If you put it in the t/ directory and name it (say) 99-changes.t, it will get run automatically whenever you run make test or prove -bl t/. If you put it into xt/, it will only get run when you run it explicitly, as author tests are not run by everybody. You need to remember to run those tests locally though - I always do that by always running prove -bl xt/ t/, but having a test that constantly fails is not great during development either.
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