1 files changed, 205 insertions, 0 deletions
diff --git a/t/cmop/metaclass_reinitialize.t b/t/cmop/metaclass_reinitialize.t
new file mode 100644
index 0000000..e4a98f3
--- /dev/null
+++ b/t/cmop/metaclass_reinitialize.t
@@ -0,0 +1,205 @@
+use strict;
+use warnings;
+
+use Test::More;
+use Test::Fatal;
+
+{
+    package Foo;
+    use metaclass;
+    sub foo {}
+    Foo->meta->add_attribute('bar');
+}
+
+sub check_meta_sanity {
+    my ($meta, $class) = @_;
+    isa_ok($meta, 'Class::MOP::Class');
+    is($meta->name, $class);
+    ok($meta->has_method('foo'));
+    isa_ok($meta->get_method('foo'), 'Class::MOP::Method');
+    ok($meta->has_attribute('bar'));
+    isa_ok($meta->get_attribute('bar'), 'Class::MOP::Attribute');
+}
+
+can_ok('Foo', 'meta');
+
+my $meta = Foo->meta;
+check_meta_sanity($meta, 'Foo');
+
+is( exception {
+    $meta = $meta->reinitialize($meta->name);
+}, undef );
+check_meta_sanity($meta, 'Foo');
+
+is( exception {
+    $meta = $meta->reinitialize($meta);
+}, undef );
+check_meta_sanity($meta, 'Foo');
+
+like( exception {
+    $meta->reinitialize('');
+}, qr/You must pass a package name or an existing Class::MOP::Package instance/ );
+
+like( exception {
+    $meta->reinitialize($meta->new_object);
+}, qr/You must pass a package name or an existing Class::MOP::Package instance/ );
+
+{
+    package Bar::Meta::Method;
+    use parent 'Class::MOP::Method';
+    __PACKAGE__->meta->add_attribute('test', accessor => 'test');
+}
+
+{
+    package Bar::Meta::Attribute;
+    use parent 'Class::MOP::Attribute';
+    __PACKAGE__->meta->add_attribute('tset', accessor => 'tset');
+}
+
+{
+    package Bar;
+    use metaclass;
+    Bar->meta->add_method('foo' => Bar::Meta::Method->wrap(sub {}, name => 'foo', package_name => 'Bar'));
+    Bar->meta->add_attribute(Bar::Meta::Attribute->new('bar'));
+}
+
+$meta = Bar->meta;
+check_meta_sanity($meta, 'Bar');
+isa_ok(Bar->meta->get_method('foo'), 'Bar::Meta::Method');
+isa_ok(Bar->meta->get_attribute('bar'), 'Bar::Meta::Attribute');
+is( exception {
+    $meta = $meta->reinitialize('Bar');
+}, undef );
+check_meta_sanity($meta, 'Bar');
+isa_ok(Bar->meta->get_method('foo'), 'Bar::Meta::Method');
+isa_ok(Bar->meta->get_attribute('bar'), 'Bar::Meta::Attribute');
+
+Bar->meta->get_method('foo')->test('FOO');
+Bar->meta->get_attribute('bar')->tset('OOF');
+
+is(Bar->meta->get_method('foo')->test, 'FOO');
+is(Bar->meta->get_attribute('bar')->tset, 'OOF');
+is( exception {
+    $meta = $meta->reinitialize('Bar');
+}, undef );
+is(Bar->meta->get_method('foo')->test, 'FOO');
+is(Bar->meta->get_attribute('bar')->tset, 'OOF');
+
+{
+    package Baz::Meta::Attribute;
+    use parent 'Class::MOP::Attribute';
+}
+
+{
+    package Baz::Meta::Method;
+    use parent 'Class::MOP::Method';
+}
+
+{
+    package Baz;
+    use metaclass meta_name => undef;
+
+    sub foo {}
+    Class::MOP::class_of('Baz')->add_attribute('bar');
+}
+
+$meta = Class::MOP::class_of('Baz');
+check_meta_sanity($meta, 'Baz');
+ok(!$meta->get_method('foo')->isa('Baz::Meta::Method'));
+ok(!$meta->get_attribute('bar')->isa('Baz::Meta::Attribute'));
+is( exception {
+    $meta = $meta->reinitialize(
+        'Baz',
+        attribute_metaclass => 'Baz::Meta::Attribute',
+        method_metaclass    => 'Baz::Meta::Method'
+    );
+}, undef );
+check_meta_sanity($meta, 'Baz');
+isa_ok($meta->get_method('foo'), 'Baz::Meta::Method');
+isa_ok($meta->get_attribute('bar'), 'Baz::Meta::Attribute');
+
+{
+    package Quux;
+    use metaclass
+        attribute_metaclass => 'Bar::Meta::Attribute',
+        method_metaclass    => 'Bar::Meta::Method';
+
+    sub foo {}
+    Quux->meta->add_attribute('bar');
+}
+
+$meta = Quux->meta;
+check_meta_sanity($meta, 'Quux');
+isa_ok(Quux->meta->get_method('foo'), 'Bar::Meta::Method');
+isa_ok(Quux->meta->get_attribute('bar'), 'Bar::Meta::Attribute');
+like( exception {
+    $meta = $meta->reinitialize(
+        'Quux',
+        attribute_metaclass => 'Baz::Meta::Attribute',
+        method_metaclass    => 'Baz::Meta::Method',
+    );
+}, qr/\QAttribute (class_name) is required/ );
+
+{
+    package Quuux::Meta::Attribute;
+    use parent 'Class::MOP::Attribute';
+
+    sub install_accessors {}
+}
+
+{
+    package Quuux;
+    use metaclass;
+    sub foo {}
+    Quuux->meta->add_attribute('bar', reader => 'bar');
+}
+
+$meta = Quuux->meta;
+check_meta_sanity($meta, 'Quuux');
+ok($meta->has_method('bar'));
+is( exception {
+    $meta = $meta->reinitialize(
+        'Quuux',
+        attribute_metaclass => 'Quuux::Meta::Attribute',
+    );
+}, undef );
+check_meta_sanity($meta, 'Quuux');
+ok(!$meta->has_method('bar'));
+
+{
+    package Blah::Meta::Method;
+    use parent 'Class::MOP::Method';
+
+    __PACKAGE__->meta->add_attribute('foo', reader => 'foo', default => 'TEST');
+}
+
+{
+    package Blah::Meta::Attribute;
+    use parent 'Class::MOP::Attribute';
+
+    __PACKAGE__->meta->add_attribute('oof', reader => 'oof', default => 'TSET');
+}
+
+{
+    package Blah;
+    use metaclass no_meta => 1;
+    sub foo {}
+    Class::MOP::class_of('Blah')->add_attribute('bar');
+}
+
+$meta = Class::MOP::class_of('Blah');
+check_meta_sanity($meta, 'Blah');
+is( exception {
+    $meta = Class::MOP::Class->reinitialize(
+        'Blah',
+        attribute_metaclass => 'Blah::Meta::Attribute',
+        method_metaclass    => 'Blah::Meta::Method',
+    );
+}, undef );
+check_meta_sanity($meta, 'Blah');
+can_ok($meta->get_method('foo'), 'foo');
+is($meta->get_method('foo')->foo, 'TEST');
+can_ok($meta->get_attribute('bar'), 'oof');
+is($meta->get_attribute('bar')->oof, 'TSET');
+
+done_testing;