public function testToStorageValue()
{
$fieldValue = new FieldValue();
$fieldValue->data = array(1, 3);
$fieldValue->sortKey = '1-3';
$expectedStorageFieldValue = new StorageFieldValue();
$expectedStorageFieldValue->dataText = '1-3';
$expectedStorageFieldValue->sortKeyString = '1-3';
$actualStorageFieldValue = new StorageFieldValue();
$this->converter->toStorageValue($fieldValue, $actualStorageFieldValue);
$this->assertEquals($expectedStorageFieldValue, $actualStorageFieldValue);
}