The IPC::Open3 is just too unreliable for this task.

p4raw-id: //depot/perl@21098

diff --git a/lib/perl5db/de0.t b/lib/perl5db/de0.t
index 80dd710..d468a92 100644 (file)
--- a/lib/perl5db/de0.t
+++ b/lib/perl5db/de0.t
@@ -13,10 +13,8 @@ BEGIN {
 }
 
 use strict;
-use IPC::Open3 qw(open3);
-use IO::Select;
 
-$|=1;
+$| = 1;
 
 my @prgs;
 
@@ -30,22 +28,17 @@ plan tests => scalar @prgs;
 
 require "dumpvar.pl";
 
+END { 1 while unlink "de0.out" }
+
 $ENV{PERLDB_OPTS} = "TTY=0";
-my($ornament1,$ornament2,$wtrfh,$rdrfh);
+my ($ornament1, $ornament2);
 my $Perl = which_perl();
-open3 $wtrfh, $rdrfh, 0, $Perl, "-de0" or die;
-my $ios = IO::Select->new();
-$ios->add($rdrfh);
 for (@prgs){
-    my($prog,$expected) = split(/\nEXPECT\n?/, $_);
-    print $wtrfh $prog, "\n";
-    my $got;
-    for my $try (1..3) {
-       if ($ios->can_read(0.25)) {
-           sysread $rdrfh, $got, 1024, length($got);
-           select undef, undef, undef, 0.25;
-       }
-    }
+    my($prog, $expected) = split(/\nEXPECT\n?/, $_);
+    open my $debug, qq{| $Perl "-de0" 2>de0.out} or die;
+    print $debug $prog, "\n";
+    close $debug;
+    my $got = do { local $/; open my $fh, "de0.out" or die; <$fh> };
     SKIP: {
        skip("failed to read debugger", 1) unless defined $got && length $got;
        $got =~ s/^\s*Loading.*\r?\n?Editor.*\r?\n?\r?\n?Enter.*\r?\n?\r?\n?main::\(-e:1\):\s+0\r?\n?//;