use blib;
use strict;
use autobox::List::Util;
use Test::More tests => 13;
my @r;
@r = []->shuffle;
ok( !@r, 'no args');
@r = [9]->shuffle;
is( 0+@r, 1, '1 in 1 out');
is( $r[0], 9, 'one arg');
my @in = 1..100;
@r = @in->shuffle;
is( 0+@r, 0+@in, 'arg count');
isnt( "@r", "@in", 'result different to args');
my @s = sort { $a <=> $b } @r;
is( "@in", "@s", 'values');
my $r;
$r = []->shuffle;
ok( !@$r, 'no args (ref)');
$r = [9]->shuffle;
is( 0+@$r, 1, '1 in 1 out (ref)');
is( $r->[0], 9, 'one arg (ref)');
$r = @in->shuffle;
is( 0+@$r, 0+@in, 'arg count (ref)');
isnt( "@$r", "@in", 'result different to args (ref)');
@s = sort { $a <=> $b } @$r;
is( "@in", "@s", 'values (ref)');
is @in->shuffle->first(sub { $_ == 5 }), 5, "can chain calls";