From: Jesse Luehrs <doy@tozt.net>
Date: Thu, 30 Sep 2010 23:49:18 +0000 (-0500)
Subject: add a bunch of anon class tests
X-Git-Tag: 1.10~12
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=559201bf99d9c677a64df9317032fed6c0ca125f;p=gitmo%2FClass-MOP.git

add a bunch of anon class tests
---

diff --git a/t/048_anon_class_create_init.t b/t/048_anon_class_create_init.t
index 42d4f14..6051f15 100644
--- a/t/048_anon_class_create_init.t
+++ b/t/048_anon_class_create_init.t
@@ -2,6 +2,7 @@ use strict;
 use warnings;
 
 use Test::More;
+use Test::Exception;
 
 use Class::MOP;
 
@@ -18,7 +19,92 @@ use Class::MOP;
 
 }
 
-my $anon = MyMeta->create_anon_class( foo => 'this' );
-isa_ok( $anon, 'MyMeta' );
+{
+    my $anon = MyMeta->create_anon_class( foo => 'this' );
+    isa_ok( $anon, 'MyMeta' );
+}
+
+my $instance;
+
+{
+    my $meta = Class::MOP::Class->create_anon_class;
+    $instance = $meta->new_object;
+}
+{
+    my $meta = Class::MOP::class_of($instance);
+    Scalar::Util::weaken($meta);
+    ok($meta, "anon class is kept alive by existing instances");
+
+    undef $instance;
+    ok(!$meta, "anon class is collected once instances go away");
+}
+
+{
+    $instance = Class::MOP::Class->create('Foo')->new_object;
+    my $meta = Class::MOP::Class->create_anon_class(superclasses => ['Foo']);
+    $meta->rebless_instance($instance);
+}
+{
+    my $meta = Class::MOP::class_of($instance);
+    Scalar::Util::weaken($meta);
+    ok($meta, "anon class is kept alive by existing instances");
+
+    undef $instance;
+    ok(!$meta, "anon class is collected once instances go away");
+}
+
+{
+    {
+        my $meta = Class::MOP::Class->create_anon_class;
+        {
+            my $submeta = Class::MOP::Class->create_anon_class(
+                superclasses => [$meta->name]
+            );
+            $instance = $submeta->new_object;
+        }
+        {
+            my $submeta = Class::MOP::class_of($instance);
+            Scalar::Util::weaken($submeta);
+            ok($submeta, "anon class is kept alive by existing instances");
+
+            $meta->rebless_instance_back($instance);
+            ok(!$submeta, "reblessing away loses the metaclass");
+        }
+    }
+
+    my $meta = Class::MOP::class_of($instance);
+    Scalar::Util::weaken($meta);
+    ok($meta, "anon class is kept alive by existing instances");
+}
+
+{
+    my $submeta = Class::MOP::Class->create_anon_class(
+        superclasses => [Class::MOP::Class->create_anon_class->name],
+    );
+    my @superclasses = $submeta->superclasses;
+    { local $TODO = "anon class ancestry isn't preserved yet";
+    ok(Class::MOP::class_of($superclasses[0]),
+       "superclasses are kept alive by their subclasses");
+    }
+}
+
+{
+    my $meta_name;
+    {
+        $meta_name = Class::MOP::Class->create_anon_class(
+            superclasses => ['Class::MOP::Class'],
+            weaken => 0,
+        )->name;
+    }
+    local $TODO = "non-weak anon classes not implemented yet";
+    ok(Class::MOP::class_of($meta_name), "metaclass still exists");
+    {
+        my $bar_meta;
+        lives_ok {
+            $bar_meta = $meta_name->initialize('Bar');
+        } "we can use the name on its own";
+        isa_ok($bar_meta, $meta_name);
+    }
+}
 
 done_testing;