Test suite fails, probably if an older List::Util without uniq is installed:
# Failed test 'use JSON::Validator'
# at t/00-basic.t line 37.
# "uniq" is not exported by the List::Util module
# Can't continue after import errors at /home/cpansand/.cpan/build/2019080819/JSON-Validator-3.13-eDudhI/blib/lib/JSON/Validator/Joi.pm line 4.
# BEGIN failed--compilation aborted at /home/cpansand/.cpan/build/2019080819/JSON-Validator-3.13-eDudhI/blib/lib/JSON/Validator/Joi.pm line 4.
# Compilation failed in require at /home/cpansand/.cpan/build/2019080819/JSON-Validator-3.13-eDudhI/blib/lib/JSON/Validator.pm line 9.
# BEGIN failed--compilation aborted at /home/cpansand/.cpan/build/2019080819/JSON-Validator-3.13-eDudhI/blib/lib/JSON/Validator.pm line 9.
# Compilation failed in require at (eval 12) line 1.
# BEGIN failed--compilation aborted at (eval 12) line 1.
Test suite fails, probably if an older List::Util without
uniq
is installed: