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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\Command;

/**
 * @group commands
 * @group realm-string
 */
class StringIncrementByTest extends PredisCommandTestCase
{
    /**
     * {@inheritdoc}
     */
    protected function getExpectedCommand()
    {
        return 'Predis\Command\StringIncrementBy';
    }

/**
     * {@inheritdoc}
     */
    protected function getExpectedId()
    {
        return 'INCRBY';
    }

/**
     * @group disconnected
     */
    public function testFilterArguments()
    {
        $arguments = array('key', 5);
        $expected = array('key', 5);

$command = $this->getCommand();
        $command->setArguments($arguments);

$this->assertSame($expected, $command->getArguments());
    }

/**
     * @group disconnected
     */
    public function testParseResponse()
    {
        $this->assertSame(5, $this->getCommand()->parseResponse(5));
    }

/**
     * @group disconnected
     */
    public function testPrefixKeys()
    {
        $arguments = array('key', 5);
        $expected = array('prefix:key', 5);

$command = $this->getCommandWithArgumentsArray($arguments);
        $command->prefixKeys('prefix:');

$this->assertSame($expected, $command->getArguments());
    }

/**
     * @group disconnected
     */
    public function testPrefixKeysIgnoredOnEmptyArguments()
    {
        $command = $this->getCommand();
        $command->prefixKeys('prefix:');

$this->assertSame(array(), $command->getArguments());
    }

/**
     * @group connected
     */
    public function testCreatesNewKeyOnNonExistingKey()
    {
        $redis = $this->getClient();

$this->assertSame(10, $redis->incrby('foo', 10));
        $this->assertEquals(10, $redis->get('foo'));
    }

/**
     * @group connected
     */
    public function testReturnsTheValueOfTheKeyAfterIncrement()
    {
        $redis = $this->getClient();

$redis->set('foo', 2);

$this->assertSame(22, $redis->incrby('foo', 20));
        $this->assertSame(10, $redis->incrby('foo', -12));
        $this->assertSame(-100, $redis->incrby('foo', -110));
    }

/**
     * @group connected
     * @expectedException Predis\ServerException
     * @expectedExceptionMessage ERR value is not an integer or out of range
     */
    public function testThrowsExceptionOnDecrementValueNotInteger()
    {
        $redis = $this->getClient();

$redis->incrby('foo', 'bar');
    }

/**
     * @group connected
     * @expectedException Predis\ServerException
     * @expectedExceptionMessage ERR value is not an integer or out of range
     */
    public function testThrowsExceptionOnKeyValueNotInteger()
    {
        $redis = $this->getClient();

$redis->set('foo', 'bar');
        $redis->incrby('foo', 10);
    }

/**
     * @group connected
     * @expectedException Predis\ServerException
     * @expectedExceptionMessage Operation against a key holding the wrong kind of value
     */
    public function testThrowsExceptionOnWrongType()
    {
        $redis = $this->getClient();

$redis->lpush('metavars', 'foo');
        $redis->incrby('metavars', 10);
    }
}

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