use Test::More;

# both of the following are too late for Test::More
# because it has already duplicated STDOUT, STDERR
binmode(STDOUT, ":utf8");
binmode(STDERR, ":utf8"):

my $tb = Test::More->builder;
$tb->failure_output(\*STDERR);
$tb->todo_output(\*STDERR);
$tb->output(\*STDOUT);