The number {nn} is (somewhat loosely) grouped as follows:
-05 individual symmetric cipher algorithms
-10 math (bignum)
-15 individual asymmetric cipher algorithms
-20 openssl commands (some otherwise not tested)
-25 certificate forms, generation and verification
-30 engine and evp
-70 PACKET layer
-80 "larger" protocols (CA, CMS, OCSP, SSL, TSA)
-90 misc
+00-04 sanity, internal and essential API tests
+05-09 individual symmetric cipher algorithms
+10-14 math (bignum)
+15-19 individual asymmetric cipher algorithms
+20-24 openssl commands (some otherwise not tested)
+25-29 certificate forms, generation and verification
+30-35 engine and evp
+60-79 APIs
+ 70 PACKET layer
+80-89 "larger" protocols (CA, CMS, OCSP, SSL, TSA)
+90-99 misc
A recipe that just runs a test executable