public function testCanDeleteShortUrls()
{
$shortUrlId = 'aaaaaaa';
$user = 'user';
$imageIdentifier = 'id';
$this->assertTrue($this->adapter->insertShortUrl($shortUrlId, $user, $imageIdentifier));
$this->assertTrue($this->adapter->deleteShortUrls($user, $imageIdentifier));
$this->assertNull($this->adapter->getShortUrlParams($shortUrlId));
}