public function testGetIdReturnsFirstValueOfIdMultiValuePropertyValue()
 {
     $idProperty = new PropertyId(PropertyIds::OBJECT_ID, array('fooPropertyId', 'secondValue'));
     $properties = new Properties();
     $properties->addProperty($idProperty);
     $this->objectData->setProperties($properties);
     $this->assertSame('fooPropertyId', $this->objectData->getId());
 }