use Test::More qw/no_plan/;
use Test::Deep;
cmp_deeply \%h1, \%h2,   "testing hashes";
__END__
not ok 1 - testing hashes
#   Failed test 'testing hashes'
#   in /tmp/h at line 11.
# Comparing hash keys of $data
# Missing: 'd', 'e'
# Extra: 'c'
1..1
# Looks like you failed 1 test of 1.