1 files changed, 112 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/t/lib/fields.t b/gnu/usr.bin/perl/t/lib/fields.t
new file mode 100644
index 00000000000..139e469b5a2
--- /dev/null
+++ b/gnu/usr.bin/perl/t/lib/fields.t
@@ -0,0 +1,112 @@
+#!./perl -w
+
+my $w;
+
+BEGIN {
+   chdir 't' if -d 't';
+   @INC = '../lib' if -d '../lib';
+   $SIG{__WARN__} = sub {
+       if ($_[0] =~ /^Hides field 'b1' in base class/) {
+           $w++;
+           return;
+       }
+       print $_[0];
+   };
+}
+
+use strict;
+use vars qw($DEBUG);
+
+package B1;
+use fields qw(b1 b2 b3);
+
+package B2;
+use fields '_b1';
+use fields qw(b1 _b2 b2);
+
+sub new { bless [], shift }
+
+package D1;
+use base 'B1';
+use fields qw(d1 d2 d3);
+
+package D2;
+use base 'B1';
+use fields qw(_d1 _d2);
+use fields qw(d1 d2);
+
+package D3;
+use base 'B2';
+use fields qw(b1 d1 _b1 _d1);  # hide b1
+
+package D4;
+use base 'D3';
+use fields qw(_d3 d3);
+
+package M;
+sub m {}
+
+package D5;
+use base qw(M B2);
+
+package Foo::Bar;
+use base 'B1';
+
+package Foo::Bar::Baz;
+use base 'Foo::Bar';
+use fields qw(foo bar baz);
+
+package main;
+
+sub fstr
+{
+   my $h = shift;
+   my @tmp;
+   for my $k (sort {$h->{$a} <=> $h->{$b}} keys %$h) {
+	my $v = $h->{$k};
+        push(@tmp, "$k:$v");
+   }
+   my $str = join(",", @tmp);
+   print "$h => $str\n" if $DEBUG;
+   $str;
+}
+
+my %expect = (
+    B1 => "b1:1,b2:2,b3:3",
+    B2 => "_b1:1,b1:2,_b2:3,b2:4",
+    D1 => "b1:1,b2:2,b3:3,d1:4,d2:5,d3:6",
+    D2 => "b1:1,b2:2,b3:3,_d1:4,_d2:5,d1:6,d2:7",
+    D3 => "b2:4,b1:5,d1:6,_b1:7,_d1:8",
+    D4 => "b2:4,b1:5,d1:6,_d3:9,d3:10",
+    D5 => "b1:2,b2:4",
+    'Foo::Bar::Baz' => 'b1:1,b2:2,b3:3,foo:4,bar:5,baz:6',
+);
+
+print "1..", int(keys %expect)+3, "\n";
+my $testno = 0;
+while (my($class, $exp) = each %expect) {
+   no strict 'refs';
+   my $fstr = fstr(\%{$class."::FIELDS"});
+   print "EXP: $exp\nGOT: $fstr\nnot " unless $fstr eq $exp;
+   print "ok ", ++$testno, "\n";
+}
+
+# Did we get the appropriate amount of warnings?
+print "not " unless $w == 1;
+print "ok ", ++$testno, "\n";
+
+# A simple object creation and AVHV attribute access test
+my B2 $obj1 = D3->new;
+$obj1->{b1} = "B2";
+my D3 $obj2 = $obj1;
+$obj2->{b1} = "D3";
+
+print "not " unless $obj1->[2] eq "B2" && $obj1->[5] eq "D3";
+print "ok ", ++$testno, "\n";
+
+# We should get compile time failures field name typos
+eval q(my D3 $obj3 = $obj2; $obj3->{notthere} = "");
+print "not " unless $@ && $@ =~ /^No such field "notthere"/;
+print "ok ", ++$testno, "\n";
+
+#fields::_dump();