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#!./perl
BEGIN {
unless (-d 'blib') {
chdir 't' if -d 't';
@INC = '../lib';
require Config; import Config;
keys %Config; # Silence warning
if ($Config{extensions} !~ /\bList\/Util\b/) {
print "1..0 # Skip: List::Util was not built\n";
exit 0;
}
}
}
use strict;
use Test::More tests => 8;
use List::Util qw(min);
my $v;
ok(defined &min, 'defined');
$v = min(9);
is($v, 9, 'single arg');
$v = min (1,2);
is($v, 1, '2-arg ordered');
$v = min(2,1);
is($v, 1, '2-arg reverse ordered');
my @a = map { rand() } 1 .. 20;
my @b = sort { $a <=> $b } @a;
$v = min(@a);
is($v, $b[0], '20-arg random order');
my $one = Foo->new(1);
my $two = Foo->new(2);
my $thr = Foo->new(3);
$v = min($one,$two,$thr);
is($v, 1, 'overload');
$v = min($thr,$two,$one);
is($v, 1, 'overload');
{ package Foo;
use overload
'""' => sub { ${$_[0]} },
'+0' => sub { ${$_[0]} },
fallback => 1;
sub new {
my $class = shift;
my $value = shift;
bless \$value, $class;
}
}
SKIP: {
eval { require bignum; } or skip("Need bignum for testing overloading",1);
my $v1 = 2**65;
my $v2 = $v1 - 1;
my $v3 = $v2 - 1;
$v = min($v1,$v2,$v1,$v3,$v1);
is($v, $v3, 'bigint');
}
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