public function testToStorageValue()
{
$value = new FieldValue();
$text = 'eZ Systems';
$value->data = array('text' => $text);
$value->externalData = 'http://ez.no/';
$value->sortKey = false;
$storageFieldValue = new StorageFieldValue();
$this->converter->toStorageValue($value, $storageFieldValue);
self::assertSame($text, $storageFieldValue->dataText);
}