These packages have test suites which are run when FEATURES has "test". I do not insist on runtime testing, but if you are eager to do it, here is a brief instruction on how to run integration test suites, which ensures the installed software actually works well with Amazon Web Services: https://wiki.gentoo.org/wiki/User:Andrey.utkin/Botocore_boto3_testing Thanks in advance.
x86 stable
amd64 stable