public function testAssertValidChildClassesAllowed()
{
$cm = new ClassMetadata('Doctrine\\Tests\\ODM\\PHPCR\\Mapping\\Person');
$cm->setChildClasses(array('stdClass'));
$childCm = new ClassMetadata('stdClass');
$childCm->initializeReflection(new RuntimeReflectionService());
$cm->assertValidChildClass($childCm);
}