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#!./perl -T
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;
}
}
elsif(!grep {/blib/} @INC) {
unshift(@INC, qw(./inc ./blib/arch ./blib/lib));
}
}
use Test::More tests => 5;
use Scalar::Util qw(tainted);
ok( !tainted(1), 'constant number');
my $var = 2;
ok( !tainted($var), 'known variable');
my $key = (keys %ENV)[0];
ok( tainted($ENV{$key}), 'environment variable');
$var = $ENV{$key};
ok( tainted($var), 'copy of environment variable');
{
package Tainted;
sub TIESCALAR { bless {} }
sub FETCH { $^X }
}
tie my $tiedvar, 'Tainted';
ok( tainted($tiedvar), 'for magic variables');
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