From b5fe5ca2134a9ef76f895fb7bc7abec4e8196b08 Mon Sep 17 00:00:00 2001
From: Slaven Rezic <slaven@rezic.de>
Date: Thu, 24 Oct 2002 02:44:35 +0200
Subject: Re: [perl #18048] read \*FH, ... returns undef but doesn' t set $! if
 \*FH not open Message-ID: <87vg3sixm4.fsf@vran.herceg.de>

p4raw-id: //depot/perl@18115
---
 t/io/binmode.t | 14 ++++++++++++--
 t/io/print.t   | 27 ++++++++++++++++++++++-----
 t/io/read.t    | 27 ++++++++++++++++++++-------
 3 files changed, 54 insertions(+), 14 deletions(-)

(limited to 't/io')

diff --git a/t/io/binmode.t b/t/io/binmode.t
index 3775290bf5..f50d0f7fa8 100644
--- a/t/io/binmode.t
+++ b/t/io/binmode.t
@@ -3,12 +3,13 @@
 BEGIN {
     chdir 't' if -d 't';
     @INC = qw(. ../lib);
+    require './test.pl';
 }
 
 use Config;
+use Errno;
 
-require "test.pl";
-plan(tests => 8);
+plan(tests => 9);
 
 ok( binmode(STDERR),            'STDERR made binary' );
 if (find PerlIO::Layer 'perlio') {
@@ -28,3 +29,12 @@ if (find PerlIO::Layer 'perlio') {
 }
 ok( binmode(STDOUT, ":raw"),    '  raw' );
 ok( binmode(STDOUT, ":crlf"),   '  and crlf' );
+
+SKIP: {
+    skip "no EBADF", 1 if (!exists &Errno::EBADF);
+
+    no warnings 'io';
+    $! = 0;
+    binmode(B);
+    ok($! == &Errno::EBADF);
+}
diff --git a/t/io/print.t b/t/io/print.t
index 0578ee6a29..f33aa666a3 100755
--- a/t/io/print.t
+++ b/t/io/print.t
@@ -1,8 +1,16 @@
 #!./perl
 
-print "1..18\n";
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+use strict 'vars';
+use Errno;
+
+print "1..19\n";
 
-$foo = 'STDOUT';
+my $foo = 'STDOUT';
 print $foo "ok 1\n";
 
 print "ok 2\n","ok 3\n","ok 4\n";
@@ -14,7 +22,7 @@ print foo "ok 6\n";
 printf "ok %d\n",7;
 printf("ok %d\n",8);
 
-@a = ("ok %d%c",9,ord("\n"));
+my @a = ("ok %d%c",9,ord("\n"));
 printf @a;
 
 $a[1] = 10;
@@ -25,10 +33,19 @@ $\ = "\n";
 
 print "ok","11";
 
-@x = ("ok","12\nok","13\nok");
-@y = ("15\nok","16");
+my @x = ("ok","12\nok","13\nok");
+my @y = ("15\nok","16");
 print @x,"14\nok",@y;
 {
     local $\ = "ok 17\n# null =>[\000]\nok 18\n";
     print "";
 }
+
+if (!exists &Errno::EBADF) {
+    print "ok 19 # skipped: no EBADF\n";
+} else {
+    $! = 0;
+    print NONEXISTENT "foo";
+    print "not " if ($! != &Errno::EBADF);
+    print "ok 19\n";
+}
diff --git a/t/io/read.t b/t/io/read.t
index b27fde17c7..ea2672dedb 100755
--- a/t/io/read.t
+++ b/t/io/read.t
@@ -2,13 +2,22 @@
 
 # $RCSfile$
 
-print "1..1\n";
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    require './test.pl';
+}
+
+use strict;
+use Errno;
+
+plan tests => 2;
 
 open(A,"+>a");
 print A "_";
 seek(A,0,0);
 
-$b = "abcd"; 
+my $b = "abcd"; 
 $b = "";
 
 read(A,$b,1,4);
@@ -17,10 +26,14 @@ close(A);
 
 unlink("a");
 
-if ($b eq "\000\000\000\000_") {
-	print "ok 1\n";
-} else { # Probably "\000bcd_"
-	print "not ok 1\n";
-}
+is($b,"\000\000\000\000_"); # otherwise probably "\000bcd_"
 
 unlink 'a';
+
+SKIP: {
+    skip "no EBADF", 1 if (!exists &Errno::EBADF);
+
+    $! = 0;
+    read(B,$b,1);
+    ok($! == &Errno::EBADF);
+}
-- 
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