use strict;
use FileHandle::Unget;
use File::Spec::Functions qw(:ALL);
use Test::More tests => 3;
my $filename = catfile('t','temp', 'output.txt');
# Test "print" and "syswrite" to write/append a file, close $fh
{
mkdir catfile('t','temp'), 0700;
unlink $filename;
my $fh = new FileHandle(">$filename");
binmode $fh;
print $fh "this is the first line\n";
print $fh "second line\n";
close $fh;
}
# Test seek($fh,###,0) and ungets
{
my $fh = new FileHandle::Unget($filename);
seek($fh,23,0);
my $line = <$fh>;
# 1
is($line,"second line\n",'Seek absolute');
$fh->ungets('1234567890');
seek($fh,0,0);
$line = <$fh>;
# 2
is($line,"this is the first line\n",'Seek to front');
$fh->ungets("1234567890\n");
seek($fh,-11,1);
$line = <$fh>;
# 3
is($line,"first line\n",'Seek backward');
$fh->close;
}