[8,5,6] -> "Not applicible" was supposed to test that not only (0,1)...(i,i+1),(i+1,i+2)... pairs are coprimetested but every pair that exist.
ie. in this case (8,5) and (5,6) are coprimes but (8,6) aren't.
It might not be neccessary to test this but I thought it would be nice

I don't exactly understand what you want. Can you be more explicit? You can, if necessary, mark it as "spoiler".

Sorry, Java

Which language?

Please change or add a test case 15, [8,5,6] -> "Not applicible" to test if all elements are pairwise coprime checks are done correct

I've got the same problem in Java