Yeah, an "offline tester" [0] was made available by the researchers who discovered ROCA [1] and a company with "close links" to the researchers created a "ROCA Vulnerability Test Suite" [2]. The Estonian government also had one on their web site [3] but it is, apparently, no longer available.
ROCA didn't just affect Estonian ID cards, though. It also affected also TPMs (from Infineon), certain Yubikeys [4], and even some PGP keys!