How can I find out why giving the wrong spec doesn't cause a blowup in my tests?

Parts of my system are specced out really well, but when I change one of the predicates to be something obviously wrong I noticed all my tests still pass and I don't get the usual blowup from spec I've come to rely on.

I can't figure out why this is happening, and I certainly can't reproduce it starting from lein new test.

Is there a way I can get spec.test to give me a warning when it can't find a spec, for debug purposes, rather than assuming I didn't want to spec out this part of my system? Can it perhaps help me in some other way with debugging this situation?