t/io/dup.t


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#!./perl

# $RCSfile: dup.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:27 $

print "1..7\n";

print "ok 1\n";

open(dupout,">&STDOUT");
open(duperr,">&STDERR");

open(STDOUT,">Io.dup") || die "Can't open stdout";
open(STDERR,">&STDOUT") || die "Can't open stderr";

select(STDERR); $| = 1;
select(STDOUT); $| = 1;

print STDOUT "ok 2\n";
print STDERR "ok 3\n";
if ($^O eq 'MSWin32') {
    print `echo ok 4`;
    print `echo ok 5 1>&2`; # does this work?
}
else {
    system 'echo ok 4';
    system 'echo ok 5 1>&2';
}

close(STDOUT);
close(STDERR);

open(STDOUT,">&dupout");
open(STDERR,">&duperr");

if ($^O eq 'MSWin32') { print `type Io.dup` }
else                  { system 'cat Io.dup' }
unlink 'Io.dup';

print STDOUT "ok 6\n";

# 7  # 19990811 mjd@plover.com
my ($out1, $out2) = ("Line 1\n", "Line 2\n");
open(W, "> Io.dup") || die "Can't open stdout";
print W $out1, $out2;
close W;
open(R1, "< Io.dup") || die "Can't read temp file";
$in1 = <R1>;
open(R2, "<&R1") || die "Can't dup";
$in2 = <R2>;
print "not " unless $in1 eq $out1 && $in2 eq $out2;
print "ok 7\n";

unlink("Io.dup");