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<?php

/**

 * MemcacheEngineTest file

 *

 * CakePHP(tm) Tests <http://book.cakephp.org/2.0/en/development/testing.html>

 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)

 *

 * Licensed under The MIT License

 * For full copyright and license information, please see the LICENSE.txt

 * Redistributions of files must retain the above copyright notice

 *

 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)

 * @link          http://book.cakephp.org/2.0/en/development/testing.html CakePHP(tm) Tests

 * @package       Cake.Test.Case.Cache.Engine

 * @since         CakePHP(tm) v 1.2.0.5434

 * @license       http://www.opensource.org/licenses/mit-license.php MIT License

 */

App::uses('Cache', 'Cache');

App::uses('MemcacheEngine', 'Cache/Engine');

/**

 * Class TestMemcacheEngine

 *

 * @package       Cake.Test.Case.Cache.Engine

 */

class TestMemcacheEngine extends MemcacheEngine {

/**

 * public accessor to _parseServerString

 *

 * @param string $server

 * @return array

 */

	public function parseServerString($server) {

		return $this->_parseServerString($server);

	}

	public function setMemcache($memcache) {

		$this->_Memcache = $memcache;

	}

}

/**

 * MemcacheEngineTest class

 *

 * @package       Cake.Test.Case.Cache.Engine

 */

class MemcacheEngineTest extends CakeTestCase {

/**

 * setUp method

 *

 * @return void

 */

	public function setUp() {

		parent::setUp();

		$this->skipIf(!class_exists('Memcache'), 'Memcache is not installed or configured properly.');

		$this->_cacheDisable = Configure::read('Cache.disable');

		Configure::write('Cache.disable', false);

		Cache::config('memcache', array(

			'engine' => 'Memcache',

			'prefix' => 'cake_',

			'duration' => 3600

		));

	}

/**

 * tearDown method

 *

 * @return void

 */

	public function tearDown() {

		parent::tearDown();

		Configure::write('Cache.disable', $this->_cacheDisable);

		Cache::drop('memcache');

		Cache::drop('memcache_groups');

		Cache::drop('memcache_helper');

		Cache::config('default');

	}

/**

 * testSettings method

 *

 * @return void

 */

	public function testSettings() {

		$settings = Cache::settings('memcache');

		unset($settings['serialize'], $settings['path']);

		$expecting = array(

			'prefix' => 'cake_',

			'duration' => 3600,

			'probability' => 100,

			'servers' => array('127.0.0.1'),

			'persistent' => true,

			'compress' => false,

			'engine' => 'Memcache',

			'groups' => array()

		);

		$this->assertEquals($expecting, $settings);

	}

/**

 * testSettings method

 *

 * @return void

 */

	public function testMultipleServers() {

		$servers = array('127.0.0.1:11211', '127.0.0.1:11222');

		$available = true;

		$Memcache = new Memcache();

		foreach ($servers as $server) {

			list($host, $port) = explode(':', $server);

			//@codingStandardsIgnoreStart

			if (!@$Memcache->connect($host, $port)) {

				$available = false;

			}

			//@codingStandardsIgnoreEnd

		}

		$this->skipIf(!$available, 'Need memcache servers at ' . implode(', ', $servers) . ' to run this test.');

		$Memcache = new MemcacheEngine();

		$Memcache->init(array('engine' => 'Memcache', 'servers' => $servers));

		$settings = $Memcache->settings();

		$this->assertEquals($settings['servers'], $servers);

		Cache::drop('dual_server');

	}

/**

 * testConnect method

 *

 * @return void

 */

	public function testConnect() {

		$Memcache = new MemcacheEngine();

		$Memcache->init(Cache::settings('memcache'));

		$result = $Memcache->connect('127.0.0.1');

		$this->assertTrue($result);

	}

/**

 * test connecting to an ipv6 server.

 *

 * @return void

 */

	public function testConnectIpv6() {

		$Memcache = new MemcacheEngine();

		$result = $Memcache->init(array(

			'prefix' => 'cake_',

			'duration' => 200,

			'engine' => 'Memcache',

			'servers' => array(

				'[::1]:11211'

			)

		));

		$this->assertTrue($result);

	}

/**

 * test non latin domains.

 *

 * @return void

 */

	public function testParseServerStringNonLatin() {

		$Memcache = new TestMemcacheEngine();

		$result = $Memcache->parseServerString('schülervz.net:13211');

		$this->assertEquals(array('schülervz.net', '13211'), $result);

		$result = $Memcache->parseServerString('sülül:1111');

		$this->assertEquals(array('sülül', '1111'), $result);

	}

/**

 * test unix sockets.

 *

 * @return void

 */

	public function testParseServerStringUnix() {

		$Memcache = new TestMemcacheEngine();

		$result = $Memcache->parseServerString('unix:///path/to/memcached.sock');

		$this->assertEquals(array('unix:///path/to/memcached.sock', 0), $result);

	}

/**

 * testReadAndWriteCache method

 *

 * @return void

 */

	public function testReadAndWriteCache() {

		Cache::set(array('duration' => 1), null, 'memcache');

		$result = Cache::read('test', 'memcache');

		$expecting = '';

		$this->assertEquals($expecting, $result);

		$data = 'this is a test of the emergency broadcasting system';

		$result = Cache::write('test', $data, 'memcache');

		$this->assertTrue($result);

		$result = Cache::read('test', 'memcache');

		$expecting = $data;

		$this->assertEquals($expecting, $result);

		Cache::delete('test', 'memcache');

	}

/**

 * testExpiry method

 *

 * @return void

 */

	public function testExpiry() {

		Cache::set(array('duration' => 1), 'memcache');

		$result = Cache::read('test', 'memcache');

		$this->assertFalse($result);

		$data = 'this is a test of the emergency broadcasting system';

		$result = Cache::write('other_test', $data, 'memcache');

		$this->assertTrue($result);

		sleep(2);

		$result = Cache::read('other_test', 'memcache');

		$this->assertFalse($result);

		Cache::set(array('duration' => "+1 second"), 'memcache');

		$data = 'this is a test of the emergency broadcasting system';

		$result = Cache::write('other_test', $data, 'memcache');

		$this->assertTrue($result);

		sleep(3);

		$result = Cache::read('other_test', 'memcache');

		$this->assertFalse($result);

		Cache::config('memcache', array('duration' => '+1 second'));

		$result = Cache::read('other_test', 'memcache');

		$this->assertFalse($result);

		Cache::config('memcache', array('duration' => '+29 days'));

		$data = 'this is a test of the emergency broadcasting system';

		$result = Cache::write('long_expiry_test', $data, 'memcache');

		$this->assertTrue($result);

		sleep(2);

		$result = Cache::read('long_expiry_test', 'memcache');

		$expecting = $data;

		$this->assertEquals($expecting, $result);

		Cache::config('memcache', array('duration' => 3600));

	}

/**

 * testDeleteCache method

 *

 * @return void

 */

	public function testDeleteCache() {

		$data = 'this is a test of the emergency broadcasting system';

		$result = Cache::write('delete_test', $data, 'memcache');

		$this->assertTrue($result);

		$result = Cache::delete('delete_test', 'memcache');

		$this->assertTrue($result);

	}

/**

 * testDecrement method

 *

 * @return void

 */

	public function testDecrement() {

		$result = Cache::write('test_decrement', 5, 'memcache');

		$this->assertTrue($result);

		$result = Cache::decrement('test_decrement', 1, 'memcache');

		$this->assertEquals(4, $result);

		$result = Cache::read('test_decrement', 'memcache');

		$this->assertEquals(4, $result);

		$result = Cache::decrement('test_decrement', 2, 'memcache');

		$this->assertEquals(2, $result);

		$result = Cache::read('test_decrement', 'memcache');

		$this->assertEquals(2, $result);

	}

/**

 * testIncrement method

 *

 * @return void

 */

	public function testIncrement() {

		$result = Cache::write('test_increment', 5, 'memcache');

		$this->assertTrue($result);

		$result = Cache::increment('test_increment', 1, 'memcache');

		$this->assertEquals(6, $result);

		$result = Cache::read('test_increment', 'memcache');

		$this->assertEquals(6, $result);

		$result = Cache::increment('test_increment', 2, 'memcache');

		$this->assertEquals(8, $result);

		$result = Cache::read('test_increment', 'memcache');

		$this->assertEquals(8, $result);

	}

/**

 * test that configurations don't conflict, when a file engine is declared after a memcache one.

 *

 * @return void

 */

	public function testConfigurationConflict() {

		Cache::config('long_memcache', array(

			'engine' => 'Memcache',

			'duration' => '+2 seconds',

			'servers' => array('127.0.0.1:11211'),

		));

		Cache::config('short_memcache', array(

			'engine' => 'Memcache',

			'duration' => '+1 seconds',

			'servers' => array('127.0.0.1:11211'),

		));

		Cache::config('some_file', array('engine' => 'File'));

		$this->assertTrue(Cache::write('duration_test', 'yay', 'long_memcache'));

		$this->assertTrue(Cache::write('short_duration_test', 'boo', 'short_memcache'));

		$this->assertEquals('yay', Cache::read('duration_test', 'long_memcache'), 'Value was not read %s');

		$this->assertEquals('boo', Cache::read('short_duration_test', 'short_memcache'), 'Value was not read %s');

		sleep(1);

		$this->assertEquals('yay', Cache::read('duration_test', 'long_memcache'), 'Value was not read %s');

		sleep(2);

		$this->assertFalse(Cache::read('short_duration_test', 'short_memcache'), 'Cache was not invalidated %s');

		$this->assertFalse(Cache::read('duration_test', 'long_memcache'), 'Value did not expire %s');

		Cache::delete('duration_test', 'long_memcache');

		Cache::delete('short_duration_test', 'short_memcache');

	}

/**

 * test clearing memcache.

 *

 * @return void

 */

	public function testClear() {

		Cache::config('memcache2', array(

			'engine' => 'Memcache',

			'prefix' => 'cake2_',

			'duration' => 3600

		));

		Cache::write('some_value', 'cache1', 'memcache');

		$result = Cache::clear(true, 'memcache');

		$this->assertTrue($result);

		$this->assertEquals('cache1', Cache::read('some_value', 'memcache'));

		Cache::write('some_value', 'cache2', 'memcache2');

		$result = Cache::clear(false, 'memcache');

		$this->assertTrue($result);

		$this->assertFalse(Cache::read('some_value', 'memcache'));

		$this->assertEquals('cache2', Cache::read('some_value', 'memcache2'));

		Cache::clear(false, 'memcache2');

	}

/**

 * test that a 0 duration can successfully write.

 *

 * @return void

 */

	public function testZeroDuration() {

		Cache::config('memcache', array('duration' => 0));

		$result = Cache::write('test_key', 'written!', 'memcache');

		$this->assertTrue($result);

		$result = Cache::read('test_key', 'memcache');

		$this->assertEquals('written!', $result);

	}

/**

 * test that durations greater than 30 days never expire

 *

 * @return void

 */

	public function testLongDurationEqualToZero() {

		$memcache = new TestMemcacheEngine();

		$memcache->settings['compress'] = false;

		$mock = $this->getMock('Memcache');

		$memcache->setMemcache($mock);

		$mock->expects($this->once())

			->method('set')

			->with('key', 'value', false, 0);

		$value = 'value';

		$memcache->write('key', $value, 50 * DAY);

	}

/**

 * Tests that configuring groups for stored keys return the correct values when read/written

 * Shows that altering the group value is equivalent to deleting all keys under the same

 * group

 *

 * @return void

 */

	public function testGroupReadWrite() {

		Cache::config('memcache_groups', array(

			'engine' => 'Memcache',

			'duration' => 3600,

			'groups' => array('group_a', 'group_b'),

			'prefix' => 'test_'

		));

		Cache::config('memcache_helper', array(

			'engine' => 'Memcache',

			'duration' => 3600,

			'prefix' => 'test_'

		));

		$this->assertTrue(Cache::write('test_groups', 'value', 'memcache_groups'));

		$this->assertEquals('value', Cache::read('test_groups', 'memcache_groups'));

		Cache::increment('group_a', 1, 'memcache_helper');

		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));

		$this->assertTrue(Cache::write('test_groups', 'value2', 'memcache_groups'));

		$this->assertEquals('value2', Cache::read('test_groups', 'memcache_groups'));

		Cache::increment('group_b', 1, 'memcache_helper');

		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));

		$this->assertTrue(Cache::write('test_groups', 'value3', 'memcache_groups'));

		$this->assertEquals('value3', Cache::read('test_groups', 'memcache_groups'));

	}

/**

 * Tests that deleteing from a groups-enabled config is possible

 *

 * @return void

 */

	public function testGroupDelete() {

		Cache::config('memcache_groups', array(

			'engine' => 'Memcache',

			'duration' => 3600,

			'groups' => array('group_a', 'group_b')

		));

		$this->assertTrue(Cache::write('test_groups', 'value', 'memcache_groups'));

		$this->assertEquals('value', Cache::read('test_groups', 'memcache_groups'));

		$this->assertTrue(Cache::delete('test_groups', 'memcache_groups'));

		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));

	}

/**

 * Test clearing a cache group

 *

 * @return void

 */

	public function testGroupClear() {

		Cache::config('memcache_groups', array(

			'engine' => 'Memcache',

			'duration' => 3600,

			'groups' => array('group_a', 'group_b')

		));

		$this->assertTrue(Cache::write('test_groups', 'value', 'memcache_groups'));

		$this->assertTrue(Cache::clearGroup('group_a', 'memcache_groups'));

		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));

		$this->assertTrue(Cache::write('test_groups', 'value2', 'memcache_groups'));

		$this->assertTrue(Cache::clearGroup('group_b', 'memcache_groups'));

		$this->assertFalse(Cache::read('test_groups', 'memcache_groups'));

	}

}