Can't call method "subject" on an undefined value

[eserte]

On some of my smoker systems the test suite fails:

Can't call method "subject" on an undefined value at t/04_complex_rdn.t line 33.
# Looks like your test exited with 2 before it could output anything.
t/04_complex_rdn.t .. 
Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/2 subtests 

I did not check thoroughly, but it seems that this happens if Crypt::PK::ECC is not installed.

[toddr]

For me this required Crypt::PK::RSA for testing and probably for use.

[wchristian]

I ran into this in our test suite, and i suspect it happens because the test is flapping on account of this call: https://github.com/openxpki/Crypt-PKCS10/blob/master/t/04_complex_rdn.t#L31 occasionally returning undef, and not being checked for errors. In our situation ->error returned "Incorrect signature" despite the signature being static and hard-coded, meaning that either a timing issue or some other other system data caused a false negative in parsing the signature.