public function testGetSyncParent()
{
$category = new ConcreteCategory();
$category->setName('main');
$article = new ConcreteArticle();
$article->setTitle('FooBar');
$article->setConcreteCategory($category);
$content = $article->getSyncParent();
$this->assertEquals('FooBar', $content->getTitle(), 'getSyncParent() returns a synchronized parent object');
$this->assertEquals($category, $content->getConcreteCategory(), 'getSyncParent() returns a synchronized parent object');
}
