Test::Builder object is a singleton
use strict;
use warnings;
use Test::More tests => 1;
use Test::Builder;
use Test::Builder::Module;
my $TMb = Test::More->builder;
diag $TMb;
my $TBM = Test::Builder::Module->builder;
diag $TBM;
my $TBn = Test::Builder->new;
diag $TBn;
ok 1;
perl examples/test-perl/t/builder.t
1..1
# Test::Builder=HASH(0x7ff234044ab8)
# Test::Builder=HASH(0x7ff234044ab8)
# Test::Builder=HASH(0x7ff234044ab8)
ok 1