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<?php
/*
* This file is part of the Predis package.
*
* (c) 2009-2020 Daniele Alessandri
* (c) 2021-2025 Till Krüss
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Predis\Command\Redis;
/**
* @group commands
* @group realm-transaction
*/
class DISCARD_Test extends PredisCommandTestCase
{
/**
* {@inheritdoc}
*/
protected function getExpectedCommand(): string
{
return 'Predis\Command\Redis\DISCARD';
}
/**
* {@inheritdoc}
*/
protected function getExpectedId(): string
{
return 'DISCARD';
}
/**
* @group disconnected
*/
public function testFilterArguments(): void
{
$command = $this->getCommand();
$command->setArguments([]);
$this->assertSame([], $command->getArguments());
}
/**
* @group disconnected
*/
public function testParseResponse(): void
{
$this->assertSame('OK', $this->getCommand()->parseResponse('OK'));
}
/**
* @group connected
* @group relay-incompatible
* @requiresRedisVersion >= 2.0.0
*/
public function testAbortsTransactionAndRestoresNormalFlow(): void
{
$redis = $this->getClient();
$redis->multi();
$this->assertEquals('QUEUED', $redis->set('foo', 'bar'));
$this->assertEquals('OK', $redis->discard());
$this->assertSame(0, $redis->exists('foo'));
}
/**
* @group connected
* @group ext-relay
*/
public function testAbortsTransactionAndRestoresNormalFlowUsingRelay(): void
{
$redis = $this->getClient();
$relay = $redis->getConnection()->getClient();
$redis->multi();
$this->assertSame($relay, $redis->set('foo', 'bar'));
$this->assertTrue($redis->discard());
$this->assertSame(0, $redis->exists('foo'));
}
/**
* @group connected
* @group relay-incompatible
* @requiresRedisVersion >= 6.0.0
*/
public function testAbortsTransactionAndRestoresNormalFlowResp3(): void
{
$redis = $this->getResp3Client();
$redis->multi();
$this->assertEquals('QUEUED', $redis->set('foo', 'bar'));
$this->assertEquals('OK', $redis->discard());
$this->assertSame(0, $redis->exists('foo'));
}
/**
* @group connected
* @requiresRedisVersion >= 2.0.0
*/
public function testThrowsExceptionWhenCallingOutsideTransaction(): void
{
$this->expectException('Predis\Response\ServerException');
$this->expectExceptionMessage('DISCARD without MULTI');
$redis = $this->getClient();
$redis->discard();
}
}
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