use strict;
use warnings;
-use Test::More tests => 12;
+use Test::More tests => 13;
BEGIN { use_ok( 'C4::Boolean', qw( true_p ) ); }
is( true_p(undef), undef, 'recognizes undefined as not boolean' );
is( true_p('foo'), undef, 'recognizes \'foo\' as not boolean' );
+is( true_p([]), undef, 'recognizes a reference as not a boolean' );