20-24 openssl commands (some otherwise not tested)
25-29 certificate forms, generation and verification
30-35 engine and evp
-60-79 APIs
+60-79 APIs:
+ 60 X509 subsystem
+ 61 BIO subsystem
+ 65 CMP subsystem
70 PACKET layer
80-89 "larger" protocols (CA, CMS, OCSP, SSL, TSA)
90-98 misc
The former produces a more meaningful message on failure than the latter.
+Note that the test infrastructure automatically sets up all required environment
+variables (such as OPENSSL_MODULES, OPENSSL_CONF etc) for the tests. Individual
+tests may choose to override the default settings as required.
+