[perl #29623] Patch for h2xs.t in Perl 5.8.4

[p5sagit/p5-mst-13.2.git] / lib / Hash / Util.t

diff --git a/lib/Hash/Util.t b/lib/Hash/Util.t
index 48cbc7c..8ed557f 100644 (file)
--- a/lib/Hash/Util.t
+++ b/lib/Hash/Util.t
@@ -6,7 +6,7 @@ BEGIN {
         chdir 't';
     }
 }
-use Test::More tests => 157;
+use Test::More tests => 173;
 use strict;
 
 my @Exported_Funcs;
@@ -274,5 +274,52 @@ like( $@, qr/^Attempt to access disallowed key 'I_DONT_EXIST' in a restricted ha
   }
 }
 
+# Check clear works on locked empty hashes - SEGVs on 5.8.2.
+{
+    my %hash;
+    lock_hash(%hash);
+    %hash = ();
+    ok(keys(%hash) == 0, 'clear empty lock_hash() hash');
+}
+{
+    my %hash;
+    lock_keys(%hash);
+    %hash = ();
+    ok(keys(%hash) == 0, 'clear empty lock_keys() hash');
+}
+
 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");
+    }
+}