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<?php
/*
* This file is part of the Predis package.
*
* (c) Daniele Alessandri <suppakilla@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Predis\Cluster\Distribution;
use PredisTestCase;
/**
*
*/
abstract class PredisDistributorTestCase extends PredisTestCase
{
/**
* Returns a new instance of the tested distributor.
*
* @return Predis\Cluster\Distribution\DistributionStrategyInterface
*/
abstract protected function getDistributorInstance();
/**
* Returns a list of nodes from the hashring.
*
* @param DistributionStrategyInterface $ring Hashring instance.
* @param int $iterations Number of nodes to fetch.
* @return array Nodes from the hashring.
*/
protected function getNodes(DistributionStrategyInterface $ring, $iterations = 10)
{
$nodes = array();
for ($i = 0; $i < $iterations; $i++) {
$key = $ring->hash($i * $i);
$nodes[] = $ring->get($key);
}
return $nodes;
}
/**
* @group disconnected
*/
public function testEmptyRingThrowsException()
{
$this->setExpectedException('Predis\Cluster\Distribution\EmptyRingException');
$ring = $this->getDistributorInstance();
$ring->get('nodekey');
}
/**
* @group disconnected
*/
public function testRemoveOnEmptyRingDoesNotThrowException()
{
$ring = $this->getDistributorInstance();
$this->assertNull($ring->remove('node'));
}
}
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