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 83904e8..fa5690d 100755 (executable)
--- a/t/io/tell.t
+++ b/t/io/tell.t
@@ -1,13 +1,22 @@
 #!./perl
 
-# $RCSfile: tell.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:33 $
+# $RCSfile: tell.t,v $$Revision$$Date$
 
-print "1..13\n";
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+print "1..27\n";
 
 $TST = 'tst';
 
-open($TST, '../Configure') || (die "Can't open ../Configure");
-binmode $TST if $^O eq 'MSWin32';
+$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, 'harness') || (die "Can't open harness");
+binmode $TST if $Is_Dosish;
 if (eof(tst)) { print "not ok 1\n"; } else { print "ok 1\n"; }
 
 $firstline = <$TST>;
@@ -42,3 +51,96 @@ if (seek(tst,0,2)) { print "ok 11\n"; } else { print "not ok 11\n"; }
 if ($lastpos == tell) { print "ok 12\n"; } else { print "not ok 12\n"; }
 
 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, 'harness') || (die "Can't open harness: $!");
+binmode other if (($^O eq 'MSWin32') || ($^O eq 'NetWare'));
+
+{
+    local($.);
+
+    if ($. == 0) { print "not ok 15\n"; } else { print "ok 15\n"; }
+
+    tell other;
+    if ($. == 0) { print "ok 16\n"; } else { print "not ok 16\n"; }
+
+    $. = 5;
+    scalar <other>;
+    if ($. == 6) { print "ok 17\n"; } else { print "not ok 17\n"; }
+}
+
+if ($. == $curline) { print "ok 18\n"; } else { print "not ok 18\n"; }
+
+{
+    local($.);
+
+    scalar <other>;
+    if ($. == 7) { print "ok 19\n"; } else { print "not ok 19\n"; }
+}
+
+if ($. == $curline) { print "ok 20\n"; } else { print "not ok 20\n"; }
+
+{
+    local($.);
+
+    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);
+
+