java - Unit testing encrypt/decrypt with some salt located in different code bases -

i want protect library validating license. license contains information such maximum users , expiration time , on.

the problems encounter are:

the encryptor , decryptor in 2 different code bases. decryptor packaged library, encryptor not, hard have them both in same test suite!
a random salt used within encryptor, same input encryptor produces different output each time, again can not assertion on result.
for sake of purpose decryptor (to make harder inject class it) final class, , of methods private, except few package accessible entry points.

i don't want test jce, want test code does:

shall create clone of the code, softer access constraints , test that? problem not testing real code run on client systems.

are there better solutions this?

from described don't see problem in testing them separately.

the encryptor , decryptor in 2 different code bases.

not issue if test them separately.

a random salt used within encryptor

you can inject mock random generator produce same results.

for sake of purpose decryptor final class, , of methods private

many ways test private methods can seen here

extracting salt encrypted license

all need encrypted license know salt of.

deciphers encrypted license

similarly, can use license know deciphers to.

deserializes output data structure containing license data,

not related , separate test of deserialization code.

ANy