util.jsonpointer: Improve tests
Result of mutation testing
Remaining mutants are mostly relating to the math.type() fallback.
Another case being that array[#array+1] == array[#array+2] and thus
doesn't matter.
For full information on our dependencies, version requirements, and
where to find them, see https://prosody.im/doc/depends
If you have luarocks available on your platform, install the following:
- luaexpat
- luasocket
- luafilesystem
- luasec