use strict;
use FileHandle::Unget;
use File::Spec::Functions qw(:ALL);
use Test::More tests => 5;
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 "first line\n";
print $fh "second line\n";
close $fh;
}
# Test tell($fh) and scalar line reading
{
my $fh = new FileHandle::Unget($filename);
my $line = <$fh>;
# 1
is(tell($fh),11,'Tell 1');
$line = <$fh>;
# 2
is(tell($fh),23,'Tell 2');
$fh->close;
}
# Test tell($fh) and ungets
{
my $fh = new FileHandle::Unget($filename);
my $line = <$fh>;
# 3
is(tell($fh),11,'Tell 3');
$fh->ungets('12345');
# 4
is(tell($fh),6,'Tell 4');
$fh->ungets('1234567890');
# 5
is(tell($fh),-4,'Tell 5');
$fh->close;
}