Fix the syswrite downgrade bug of

[perl5.git] / t / io / tell.t

diff --git a/t/io/tell.t b/t/io/tell.t
index b89aefb..fa5690d 100755 (executable)
--- a/t/io/tell.t
+++ b/t/io/tell.t
@@ -2,14 +2,20 @@
 
 # $RCSfile: tell.t,v $$Revision$$Date$
 
-print "1..21\n";
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+print "1..27\n";
 
 $TST = 'tst';
 
-$Is_Dosish = ($^O eq 'MSWin32' or $^O eq 'dos' or
-             $^O eq 'os2' or $^O eq 'mint' or $^O eq 'cygwin');
+$Is_Dosish = ($^O eq 'MSWin32' or $^O eq 'NetWare' or $^O eq 'dos' or
+              $^O eq 'os2' or $^O eq 'mint' or $^O eq 'cygwin' or
+              $^O =~ /^uwin/);
 
-open($TST, '../Configure') || (die "Can't open ../Configure");
+open($TST, 'harness') || (die "Can't open harness");
 binmode $TST if $Is_Dosish;
 if (eof(tst)) { print "not ok 1\n"; } else { print "ok 1\n"; }
 
@@ -49,8 +55,8 @@ unless (eof) { print "not ok 13\n"; } else { print "ok 13\n"; }
 if ($. == 0) { print "not ok 14\n"; } else { print "ok 14\n"; }
 
 $curline = $.;
-open(other, '../Configure') || (die "Can't open ../Configure");
-binmode other if $^O eq 'MSWin32';
+open(other, 'harness') || (die "Can't open harness: $!");
+binmode other if (($^O eq 'MSWin32') || ($^O eq 'NetWare'));
 
 {
     local($.);
@@ -82,3 +88,59 @@ if ($. == $curline) { print "ok 20\n"; } else { print "not ok 20\n"; }
     tell other;
     if ($. == 7) { print "ok 21\n"; } else { print "not ok 21\n"; }
 }
+
+close(other);
+if (tell(other) == -1)  { print "ok 22\n"; } else { print "not ok 22\n"; }
+
+if (tell(ether) == -1)  { print "ok 23\n"; } else { print "not ok 23\n"; }
+
+# ftell(STDIN) (or any std streams) is undefined, it can return -1 or
+# something else.  ftell() on pipes, fifos, and sockets is defined to
+# return -1.
+
+my $written = "tell_write.txt";
+
+END { unlink($written) }
+
+close($tst);
+open($tst,">$written")  || die "Cannot open $written:$!";
+binmode $tst if $Is_Dosish;
+
+if (tell($tst) == 0) { print "ok 24\n"; } else { print "not ok 24\n"; }
+
+print $tst "fred\n";
+
+if (tell($tst) == 5) { print "ok 25\n"; } else { print "not ok 25\n"; }
+
+print $tst "more\n";
+
+if (tell($tst) == 10) { print "ok 26\n"; } else { print "not ok 26\n"; }
+
+close($tst);
+
+open($tst,"+>>$written")  || die "Cannot open $written:$!";
+binmode $tst if $Is_Dosish;
+
+if (0) 
+{
+ # :stdio does not pass these so ignore them for now 
+
+if (tell($tst) == 0) { print "ok 27\n"; } else { print "not ok 27\n"; }
+
+$line = <$tst>;
+
+if ($line eq "fred\n") { print "ok 29\n"; } else { print "not ok 29\n"; }
+
+if (tell($tst) == 5) { print "ok 30\n"; } else { print "not ok 30\n"; }
+
+}
+
+print $tst "xxxx\n";
+
+if (tell($tst) == 15 ||
+    tell($tst) == 5) # unset PERLIO or PERLIO=stdio (e.g. HP-UX, Solaris)
+{ print "ok 27\n"; } else { print "not ok 27\n"; }
+
+close($tst);
+
+