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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;
use Predis\Command\PrefixableCommand;
/**
* @group commands
* @group realm-string
*/
class DECRBY_Test extends PredisCommandTestCase
{
/**
* {@inheritdoc}
*/
protected function getExpectedCommand(): string
{
return 'Predis\Command\Redis\DECRBY';
}
/**
* {@inheritdoc}
*/
protected function getExpectedId(): string
{
return 'DECRBY';
}
/**
* @group disconnected
*/
public function testFilterArguments(): void
{
$arguments = ['key', 5];
$expected = ['key', 5];
$command = $this->getCommand();
$command->setArguments($arguments);
$this->assertSame($expected, $command->getArguments());
}
/**
* @group disconnected
*/
public function testParseResponse(): void
{
$this->assertSame(5, $this->getCommand()->parseResponse(5));
}
/**
* @group disconnected
*/
public function testPrefixKeys(): void
{
/** @var PrefixableCommand $command */
$command = $this->getCommand();
$actualArguments = ['arg1', 'arg2', 'arg3', 'arg4'];
$prefix = 'prefix:';
$expectedArguments = ['prefix:arg1', 'arg2', 'arg3', 'arg4'];
$command->setArguments($actualArguments);
$command->prefixKeys($prefix);
$this->assertSame($expectedArguments, $command->getArguments());
}
/**
* @group connected
*/
public function testCreatesNewKeyOnNonExistingKey(): void
{
$redis = $this->getClient();
$this->assertSame(-10, $redis->decrby('foo', 10));
$this->assertEquals(-10, $redis->get('foo'));
}
/**
* @group connected
* @requiresRedisVersion >= 6.0.0
*/
public function testCreatesNewKeyOnNonExistingKeyResp3(): void
{
$redis = $this->getResp3Client();
$this->assertSame(-10, $redis->decrby('foo', 10));
$this->assertEquals(-10, $redis->get('foo'));
}
/**
* @group connected
*/
public function testReturnsTheValueOfTheKeyAfterDecrement(): void
{
$redis = $this->getClient();
$redis->set('foo', 10);
$this->assertSame(6, $redis->decrby('foo', 4));
$this->assertSame(0, $redis->decrby('foo', 6));
$this->assertSame(-25, $redis->decrby('foo', 25));
}
/**
* @group connected
*/
public function testThrowsExceptionOnDecrementValueNotInteger(): void
{
$this->expectException('Predis\Response\ServerException');
$this->expectExceptionMessage('ERR value is not an integer or out of range');
$redis = $this->getClient();
$redis->decrby('foo', 'bar');
}
/**
* @group connected
*/
public function testThrowsExceptionOnKeyValueNotInteger(): void
{
$this->expectException('Predis\Response\ServerException');
$this->expectExceptionMessage('ERR value is not an integer or out of range');
$redis = $this->getClient();
$redis->set('foo', 'bar');
$redis->decrby('foo', 5);
}
/**
* @group connected
*/
public function testThrowsExceptionOnWrongType(): void
{
$this->expectException('Predis\Response\ServerException');
$this->expectExceptionMessage('Operation against a key holding the wrong kind of value');
$redis = $this->getClient();
$redis->lpush('metavars', 'foo');
$redis->decrby('metavars', 10);
}
}
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