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#! perl
use strict;
use warnings;
use Test::More;
use IPC::Run 'run';
plan skip_all => "$^O does not allow redirection of file descriptors > 2"
if IPC::Run::Win32_MODE();
plan tests => 1;
use File::Temp;
use IO::Handle;
use POSIX ();
# trigger IPC::Run bug where parent has $fd open
# and child needs $fd & $fd+1
my $error;
sub parent {
# dup stderr so we get some fd
my $xfd = POSIX::dup( 2 );
die $! if $xfd == -1;
my @fds = ( $xfd, $xfd + 1 );
# create input files to be attached to the fds
my @tmp;
@tmp[@fds] = map {
my $tmp = File::Temp->new;
$tmp->print( $_ );
$tmp->close;
$tmp
} @fds;
# child reads from fds and make sure that
# it can open them and that they're attached
# to the files it expects.
my $child = sub {
for my $fd ( @fds ) {
my $io = IO::Handle->new_from_fd( $fd, '<' )
or print( STDERR ( "error fdopening $fd\n" ) ), next;
my $input = $io->getline;
print STDERR "expected >$fd<. got >$input<\n"
unless $fd eq $input;
}
};
run $child,( map { $_ . '<', $tmp[$_]->filename } @fds, ), '2>', \$error;
POSIX::close $xfd;
}
parent;
is ( $error, '', "child fd not closed" )
or note $error;
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