public function testDumpObjectValue()
 {
     $data = new StubDumpable(new StubDumpable());
     $dumped = RegistryHelper::dumpObjectValues($data);
     $this->assertEquals('foo', $dumped['foo']);
     $this->assertEquals('bar', $dumped['bar']);
     $this->assertNull($dumped['data']['self']);
     $this->assertEquals(RegistryHelper::dumpObjectValues(new StubDumpable()), $dumped['data']['new']);
     $this->assertEquals(array('sakura', 'rose'), $dumped['data']['flower']);
     $this->assertEquals(array('wind' => 'walker'), $dumped['iterator']);
 }