public function testGetParentOrCreateExisting()
{
$article = new ConcreteArticle();
$article->save();
ConcreteContentTableMap::clearInstancePool();
$content = $article->getParentOrCreate();
$this->assertTrue($content instanceof ConcreteContent, 'getParentOrCreate() returns an instance of the parent class');
$this->assertFalse($content->isNew(), 'getParentOrCreate() returns an existing instance of the parent class if the object is persisted');
$this->assertEquals($article->getId(), $content->getId(), 'getParentOrCreate() returns the parent object related to the current object');
}
