Tongue in cheek? Too late
GFCI's made since 2003 have had some manner of 'self test' in them. The problem is, this electronic wizardry doesn't actually make any parts move, so the innards can rust solid and never work.
2003 also increased corrosion requirements, but there is still the need to actually trip the things.
Now we are faced with all manner of counterfeit breakers. With this push to get away from affordable devices, and rely upon brand-specific breakers (meaning more expensive), expect the problem to get worse.
What is to prevent some counterfeiter from simply making the 'test' button an 'off' switch - saving the trouble of counterfeiting the intricate innards?
With GFCI's, in most circumstances we can use a simple plug-in tester. Yet, there is no 'acceptable' tester for AFCI's. We are forced to rely upon that same test button - that is part of what might be a counterfeit breaker.
Folks, I have a problem with this situation.
