Refashioned #20055: we cannot trust stdio to fail here.

p4raw-id: //depot/perl@20058

1 files changed, 8 insertions, 1 deletions

diff --git a/ext/Digest/MD5/t/badfile.t b/ext/Digest/MD5/t/badfile.t
index 32fc6fef7c..90a7857ac3 100644
--- a/ext/Digest/MD5/t/badfile.t
+++ b/ext/Digest/MD5/t/badfile.t
@@ -4,6 +4,7 @@
 print "1..3\n";
 
 use Digest::MD5 ();
+use Config;
 
 $md5 = Digest::MD5->new;
 
@@ -25,7 +26,13 @@ open(BAR, ">no-existing-file.$$") || die;
 eval {
     $md5->addfile(*BAR);
 };
-print "not " unless $@ =~ /^Reading from filehandle failed at/;
+# Some stdio implementations don't find reading from
+# write-only filehandle to be a problem.  Therefore we
+# cannot expect this to fail reliably with stdio.
+my $stdio = !exists  $Config{useperlio} ||
+	    !defined $Config{useperlio} ||
+	    (exists $ENV{PERLIO} && $ENV{PERLIO} eq 'stdio');
+print "not " unless $@ =~ /^Reading from filehandle failed at/ || $stdio;
 print "ok 3\n";
 
 close(BAR);