public function testNewFieldDefinitionUpdateStruct()
{
/* BEGIN: Use Case */
$contentTypeService = $this->repository->getContentTypeService();
$fieldDefinitionUpdateStruct = $contentTypeService->newFieldDefinitionUpdateStruct();
/* END: Use Case */
$this->assertInstanceOf('eZ\\Publish\\API\\Repository\\Values\\ContentType\\FieldDefinitionUpdateStruct', $fieldDefinitionUpdateStruct);
return $fieldDefinitionUpdateStruct;
}