1 files changed, 308 insertions, 0 deletions
diff --git a/t/op/runlevel.t b/t/op/runlevel.t
new file mode 100644
index 0000000000..ca6aac5e5b
--- /dev/null
+++ b/t/op/runlevel.t
@@ -0,0 +1,308 @@
+#!./perl
+
+##
+## all of these tests are from Michael Schroeder
+## <Michael.Schroeder@informatik.uni-erlangen.de>
+##
+## The more esoteric failure modes require Michael's
+## stack-of-stacks patch (so we don't test them here,
+## and they are commented out before the __END__).
+##
+## The remaining tests pass with a simpler fix
+## intended for 5.004
+##
+## Gurusamy Sarathy <gsar@umich.edu> 97-02-24
+##
+
+chdir 't' if -d 't';
+@INC = "../lib";
+$ENV{PERL5LIB} = "../lib";
+
+$|=1;
+
+undef $/;
+@prgs = split "\n########\n", <DATA>;
+print "1..", scalar @prgs, "\n";
+
+$tmpfile = "runltmp000";
+1 while -f ++$tmpfile;
+END { unlink $tmpfile if $tmpfile; }
+
+for (@prgs){
+    my $switch;
+    if (s/^\s*-\w+//){
+       $switch = $&;
+    }
+    my($prog,$expected) = split(/\nEXPECT\n/, $_);
+    open TEST, "| sh -c './perl $switch' >$tmpfile 2>&1";
+    print TEST $prog, "\n";
+    close TEST;
+    $status = $?;
+    $results = `cat $tmpfile`;
+    $results =~ s/\n+$//;
+    $expected =~ s/\n+$//;
+    if ( $results ne $expected){
+       print STDERR "PROG: $switch\n$prog\n";
+       print STDERR "EXPECTED:\n$expected\n";
+       print STDERR "GOT:\n$results\n";
+       print "not ";
+    }
+    print "ok ", ++$i, "\n";
+}
+
+=head2 stay out of here (the real tests are after __END__)
+
+##
+## these tests don't pass yet (need the full stack-of-stacks patch)
+## GSAR 97-02-24
+##
+
+########
+# sort within sort
+sub sortfn {
+  (split(/./, 'x'x10000))[0];
+  my (@y) = ( 4, 6, 5);
+  @y = sort { $a <=> $b } @y;
+  print "sortfn ".join(', ', @y)."\n";
+  return $_[0] <=> $_[1];
+}
+@x = ( 3, 2, 1 );
+@x = sort { &sortfn($a, $b) } @x;
+print "---- ".join(', ', @x)."\n";
+EXPECT
+sortfn 4, 5, 6
+---- 1, 2, 3
+########
+# trapping eval within sort (doesn't work currently because
+# die does a SWITCHSTACK())
+@a = (3, 2, 1);
+@a = sort { eval('die("no way")') ,  $a <=> $b} @a;
+print join(", ", @a)."\n";
+EXPECT
+1, 2, 3
+########
+# this actually works fine, but results in a poor error message
+@a = (1, 2, 3);
+foo:
+{
+  @a = sort { last foo; } @a;
+}
+EXPECT
+cannot reach destination block at - line 2.
+########
+package TEST;
+ 
+sub TIESCALAR {
+  my $foo;
+  return bless \$foo;
+}
+sub FETCH {
+  next;
+  return "ZZZ";
+}
+sub STORE {
+}
+ 
+package main;
+ 
+tie $bar, TEST;
+{
+  print "- $bar\n";
+}
+print "OK\n";
+EXPECT
+cannot reach destination block at - line 8.
+########
+package TEST;
+ 
+sub TIESCALAR {
+  my $foo;
+  return bless \$foo;
+}
+sub FETCH {
+  goto bbb;
+  return "ZZZ";
+}
+ 
+package main;
+ 
+tie $bar, TEST;
+print "- $bar\n";
+exit;
+bbb:
+print "bbb\n";
+EXPECT
+bbb
+########
+# trapping eval within sort (doesn't work currently because
+# die does a SWITCHSTACK())
+sub foo {
+  $a <=> $b unless eval('$a == 0 ? die("foo\n") : ($a <=> $b)');
+}
+@a = (3, 2, 0, 1);
+@a = sort foo @a;
+print join(', ', @a)."\n";
+EXPECT
+0, 1, 2, 3
+########
+package TEST;
+sub TIESCALAR {
+  my $foo;
+  next;
+  return bless \$foo;
+}
+package main;
+{
+tie $bar, TEST;
+}
+EXPECT
+cannot reach destination block at - line 4.
+########
+# large stack extension causes realloc, and segfault
+package TEST;
+sub TIESCALAR {
+  my $foo;
+  return bless \$foo;
+}
+sub FETCH {
+  return "fetch";
+}
+sub STORE {
+(split(/./, 'x'x10000))[0];
+}
+package main;
+tie $bar, TEST;
+$bar = "x";
+
+=cut
+
+##
+##
+## The real tests begin here
+##
+##
+
+__END__
+@a = (1, 2, 3);
+{
+  @a = sort { last ; } @a;
+}
+EXPECT
+Can't "last" outside a block at - line 3.
+########
+package TEST;
+ 
+sub TIESCALAR {
+  my $foo;
+  return bless \$foo;
+}
+sub FETCH {
+  eval 'die("test")';
+  print "still in fetch\n";
+  return ">$@<";
+}
+package main;
+ 
+tie $bar, TEST;
+print "- $bar\n";
+EXPECT
+still in fetch
+- >test at (eval 1) line 1.
+<
+########
+package TEST;
+ 
+sub TIESCALAR {
+  my $foo;
+  eval('die("foo\n")');
+  print "after eval\n";
+  return bless \$foo;
+}
+sub FETCH {
+  return "ZZZ";
+}
+ 
+package main;
+ 
+tie $bar, TEST;
+print "- $bar\n";
+print "OK\n";
+EXPECT
+after eval
+- ZZZ
+OK
+########
+package TEST;
+ 
+sub TIEHANDLE {
+  my $foo;
+  return bless \$foo;
+}
+sub PRINT {
+print STDERR "PRINT CALLED\n";
+(split(/./, 'x'x10000))[0];
+eval('die("test\n")');
+}
+ 
+package main;
+ 
+open FH, ">&STDOUT";
+tie *FH, TEST;
+print FH "OK\n";
+print "DONE\n";
+EXPECT
+PRINT CALLED
+DONE
+########
+sub warnhook {
+  print "WARNHOOK\n";
+  eval('die("foooo\n")');
+}
+$SIG{'__WARN__'} = 'warnhook';
+warn("dfsds\n");
+print "END\n";
+EXPECT
+WARNHOOK
+END
+########
+package TEST;
+ 
+use overload
+     "\"\""   =>  \&str
+;
+ 
+sub str {
+  eval('die("test\n")');
+  return "STR";
+}
+ 
+package main;
+ 
+$bar = bless {}, TEST;
+print "$bar\n";
+print "OK\n";
+EXPECT
+STR
+OK
+########
+sub foo {
+  $a <=> $b unless eval('$a == 0 ? bless undef : ($a <=> $b)');
+}
+@a = (3, 2, 0, 1);
+@a = sort foo @a;
+print join(', ', @a)."\n";
+EXPECT
+0, 1, 2, 3
+########
+sub foo {
+  goto bar if $a == 0;
+  $a <=> $b;
+}
+@a = (3, 2, 0, 1);
+@a = sort foo @a;
+print join(', ', @a)."\n";
+exit;
+bar:
+print "bar reached\n";
+EXPECT
+Can't "goto" outside a block at - line 2.