/**
* Test invalid argument.
*/
public function testInvalidArgument()
{
$diffItem = new CreateDiffItem();
$diffItem->setCategory('some-category');
$diffItem->setTimestamp(new \DateTime());
$this->storage->expects($this->never())->method('save');
$this->setExpectedException('InvalidArgumentException', 'No valid item ID provided.');
$this->service->extract($diffItem);
}
/**
* Save results to storage.
*
* @param AbstractDiffItem $item
* @param string $action
*/
private function saveResult(AbstractDiffItem $item, $action)
{
$this->storage->save($action, $item->getCategory(), $item->getItemId(), $item->getTimestamp(), $this->getShopIds());
}