use strict; use warnings; use Test::More; BEGIN { use_ok( 'Protocol::HTTP2::Trace', qw(tracer bin2hex) ); } subtest 'bin2hex' => sub { is bin2hex("ABCDEFGHIJKLMNOPQR"), "4142 4344 4546 4748 494a 4b4c 4d4e 4f50\n5152 "; }; done_testing;