I gave up on those the last time I wasted 4 hours of my life on one of those tests and never even got a rejection email. It wasn't a hard test and I didn't do badly.
Nowadays I just point them at my github. If a body of open source isn't enough to get an interview I'm not interested in working there.
Agreed. My experience is that recruiters are pretty flakey people(and I'm being charitable in that) - they regularly fail to keep scheduled calls, fail to follow up after asking you for some times to chat, take weeks or even months to respond resume submissions for jobs they are posting etc.
I have no problem with competency testing provided I have already spoken to someone on the team and established contact and registered interest with someone besides a recruiter.
Nowadays I just point them at my github. If a body of open source isn't enough to get an interview I'm not interested in working there.