deleting keys in restricted hashes was leaking the entry. Yow!

p4raw-id: //depot/perl@22281

1 files changed, 34 insertions, 1 deletions

diff --git a/lib/Hash/Util.t b/lib/Hash/Util.t
index 1c77728c27..8ed557f1a3 100644
--- a/lib/Hash/Util.t
+++ b/lib/Hash/Util.t
@@ -6,7 +6,7 @@ BEGIN {
         chdir 't';
     }
 }
-use Test::More tests => 159;
+use Test::More tests => 173;
 use strict;
 
 my @Exported_Funcs;
@@ -290,3 +290,36 @@ like( $@, qr/^Attempt to access disallowed key 'I_DONT_EXIST' in a restricted ha
 
 my $hash_seed = hash_seed();
 ok($hash_seed >= 0, "hash_seed $hash_seed");
+
+{
+    package Minder;
+    my $counter;
+    sub DESTROY {
+	--$counter;
+    }
+    sub new {
+	++$counter;
+	bless [], __PACKAGE__;
+    }
+    package main;
+
+    for my $state ('', 'locked') {
+	my $a = Minder->new();
+	is ($counter, 1, "There is 1 object $state");
+	my %hash;
+	$hash{a} = $a;
+	is ($counter, 1, "There is still 1 object $state");
+
+	lock_keys(%hash) if $state;
+
+	is ($counter, 1, "There is still 1 object $state");
+	undef $a;
+	is ($counter, 1, "Still 1 object $state");
+	delete $hash{a};
+	is ($counter, 0, "0 objects when hash key is deleted $state");
+	$hash{a} = undef;
+	is ($counter, 0, "Still 0 objects $state");
+	%hash = ();
+	is ($counter, 0, "0 objects after clear $state");
+    }
+}