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<?php

/**

 * CacheTest 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

 * @since         CakePHP(tm) v 1.2.0.5432

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

 */

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

/**

 * CacheTest class

 *

 * @package       Cake.Test.Case.Cache

 */

class CacheTest extends CakeTestCase {

	protected $_count = 0;

/**

 * setUp method

 *

 * @return void

 */

	public function setUp() {

		parent::setUp();

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

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

		$this->_defaultCacheConfig = Cache::config('default');

		Cache::config('default', array('engine' => 'File', 'path' => TMP . 'tests'));

	}

/**

 * tearDown method

 *

 * @return void

 */

	public function tearDown() {

		parent::tearDown();

		Cache::drop('latest');

		Cache::drop('page');

		Cache::drop('archive');

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

		Cache::config('default', $this->_defaultCacheConfig['settings']);

	}

/**

 * testConfig method

 *

 * @return void

 */

	public function testConfig() {

		$settings = array('engine' => 'File', 'path' => TMP . 'tests', 'prefix' => 'cake_test_');

		$results = Cache::config('new', $settings);

		$this->assertEquals(Cache::config('new'), $results);

		$this->assertTrue(isset($results['engine']));

		$this->assertTrue(isset($results['settings']));

	}

/**

 * testConfigInvalidEngine method

 *

 * @expectedException CacheException

 * @return void

 */

	public function testConfigInvalidEngine() {

		$settings = array('engine' => 'Imaginary');

		Cache::config('imaginary', $settings);

	}

/**

 * Check that no fatal errors are issued doing normal things when Cache.disable is true.

 *

 * @return void

 */

	public function testNonFatalErrorsWithCachedisable() {

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

		Cache::config('test', array('engine' => 'File', 'path' => TMP, 'prefix' => 'error_test_'));

		Cache::write('no_save', 'Noooo!', 'test');

		Cache::read('no_save', 'test');

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

		Cache::set('duration', '+10 minutes');

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

	}

/**

 * test configuring CacheEngines in App/libs

 *

 * @return void

 */

	public function testConfigWithLibAndPluginEngines() {

		App::build(array(

			'Lib' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Lib' . DS),

			'Plugin' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS)

		), App::RESET);

		CakePlugin::load('TestPlugin');

		$settings = array('engine' => 'TestAppCache', 'path' => TMP, 'prefix' => 'cake_test_');

		$result = Cache::config('libEngine', $settings);

		$this->assertEquals(Cache::config('libEngine'), $result);

		$settings = array('engine' => 'TestPlugin.TestPluginCache', 'path' => TMP, 'prefix' => 'cake_test_');

		$result = Cache::config('pluginLibEngine', $settings);

		$this->assertEquals(Cache::config('pluginLibEngine'), $result);

		Cache::drop('libEngine');

		Cache::drop('pluginLibEngine');

		App::build();

		CakePlugin::unload();

	}

/**

 * testInvalidConfig method

 *

 * Test that the cache class doesn't cause fatal errors with a partial path

 *

 * @expectedException PHPUnit_Framework_Error_Warning

 * @return void

 */

	public function testInvalidConfig() {

		// In debug mode it would auto create the folder.

		$debug = Configure::read('debug');

		Configure::write('debug', 0);

		Cache::config('invalid', array(

			'engine' => 'File',

			'duration' => '+1 year',

			'prefix' => 'testing_invalid_',

			'path' => 'data/',

			'serialize' => true,

			'random' => 'wii'

		));

		Cache::read('Test', 'invalid');

		Configure::write('debug', $debug);

	}

/**

 * Test reading from a config that is undefined.

 *

 * @return void

 */

	public function testReadNonExistingConfig() {

		$this->assertFalse(Cache::read('key', 'totally fake'));

		$this->assertFalse(Cache::write('key', 'value', 'totally fake'));

		$this->assertFalse(Cache::increment('key', 1, 'totally fake'));

		$this->assertFalse(Cache::decrement('key', 1, 'totally fake'));

	}

/**

 * test that trying to configure classes that don't extend CacheEngine fail.

 *

 * @expectedException CacheException

 * @return void

 */

	public function testAttemptingToConfigureANonCacheEngineClass() {

		$this->getMock('StdClass', array(), array(), 'RubbishEngine');

		Cache::config('Garbage', array(

			'engine' => 'Rubbish'

		));

	}

/**

 * testConfigChange method

 *

 * @return void

 */

	public function testConfigChange() {

		$_cacheConfigSessions = Cache::config('sessions');

		$_cacheConfigTests = Cache::config('tests');

		$result = Cache::config('sessions', array('engine' => 'File', 'path' => TMP . 'sessions'));

		$this->assertEquals(Cache::settings('sessions'), $result['settings']);

		$result = Cache::config('tests', array('engine' => 'File', 'path' => TMP . 'tests'));

		$this->assertEquals(Cache::settings('tests'), $result['settings']);

		Cache::config('sessions', $_cacheConfigSessions['settings']);

		Cache::config('tests', $_cacheConfigTests['settings']);

	}

/**

 * test that calling config() sets the 'default' configuration up.

 *

 * @return void

 */

	public function testConfigSettingDefaultConfigKey() {

		Cache::config('test_name', array('engine' => 'File', 'prefix' => 'test_name_'));

		Cache::write('value_one', 'I am cached', 'test_name');

		$result = Cache::read('value_one', 'test_name');

		$this->assertEquals('I am cached', $result);

		$result = Cache::read('value_one');

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

		Cache::write('value_one', 'I am in default config!');

		$result = Cache::read('value_one');

		$this->assertEquals('I am in default config!', $result);

		$result = Cache::read('value_one', 'test_name');

		$this->assertEquals('I am cached', $result);

		Cache::delete('value_one', 'test_name');

		Cache::delete('value_one', 'default');

	}

/**

 * testWritingWithConfig method

 *

 * @return void

 */

	public function testWritingWithConfig() {

		$_cacheConfigSessions = Cache::config('sessions');

		Cache::write('test_something', 'this is the test data', 'tests');

		$expected = array(

			'path' => TMP . 'sessions' . DS,

			'prefix' => 'cake_',

			'lock' => true,

			'serialize' => true,

			'duration' => 3600,

			'probability' => 100,

			'engine' => 'File',

			'isWindows' => DIRECTORY_SEPARATOR === '\\',

			'mask' => 0664,

			'groups' => array()

		);

		$this->assertEquals($expected, Cache::settings('sessions'));

		Cache::config('sessions', $_cacheConfigSessions['settings']);

	}

/**

 * testGroupConfigs method

 *

 * @return void

 */

	public function testGroupConfigs() {

		Cache::config('latest', array(

			'duration' => 300,

			'engine' => 'File',

			'groups' => array(

				'posts', 'comments',

			),

		));

		$expected = array(

			'posts' => array('latest'),

			'comments' => array('latest'),

		);

		$result = Cache::groupConfigs();

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

		$result = Cache::groupConfigs('posts');

		$this->assertEquals(array('posts' => array('latest')), $result);

		Cache::config('page', array(

			'duration' => 86400,

			'engine' => 'File',

			'groups' => array(

				'posts', 'archive'

			),

		));

		$result = Cache::groupConfigs();

		$expected = array(

			'posts' => array('latest', 'page'),

			'comments' => array('latest'),

			'archive' => array('page'),

		);

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

		$result = Cache::groupConfigs('archive');

		$this->assertEquals(array('archive' => array('page')), $result);

		Cache::config('archive', array(

			'duration' => 86400 * 30,

			'engine' => 'File',

			'groups' => array(

				'posts', 'archive', 'comments',

			),

		));

		$result = Cache::groupConfigs('archive');

		$this->assertEquals(array('archive' => array('archive', 'page')), $result);

	}

/**

 * testGroupConfigsThrowsException method

 *

 * @expectedException CacheException

 * @return void

 */

	public function testGroupConfigsThrowsException() {

		Cache::groupConfigs('bogus');

	}

/**

 * test that configured returns an array of the currently configured cache

 * settings

 *

 * @return void

 */

	public function testConfigured() {

		$result = Cache::configured();

		$this->assertTrue(in_array('_cake_core_', $result));

		$this->assertTrue(in_array('default', $result));

	}

/**

 * testInitSettings method

 *

 * @return void

 */

	public function testInitSettings() {

		$initial = Cache::settings();

		$override = array('engine' => 'File', 'path' => TMP . 'tests');

		Cache::config('for_test', $override);

		$settings = Cache::settings();

		$expecting = $override + $initial;

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

	}

/**

 * test that drop removes cache configs, and that further attempts to use that config

 * do not work.

 *

 * @return void

 */

	public function testDrop() {

		App::build(array(

			'Lib' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Lib' . DS),

			'Plugin' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS)

		), App::RESET);

		$result = Cache::drop('some_config_that_does_not_exist');

		$this->assertFalse($result);

		$_testsConfig = Cache::config('tests');

		$result = Cache::drop('tests');

		$this->assertTrue($result);

		Cache::config('unconfigTest', array(

			'engine' => 'TestAppCache'

		));

		$this->assertTrue(Cache::isInitialized('unconfigTest'));

		$this->assertTrue(Cache::drop('unconfigTest'));

		$this->assertFalse(Cache::isInitialized('TestAppCache'));

		Cache::config('tests', $_testsConfig);

		App::build();

	}

/**

 * testWriteEmptyValues method

 *

 * @return void

 */

	public function testWriteEmptyValues() {

		Cache::write('App.falseTest', false);

		$this->assertFalse(Cache::read('App.falseTest'));

		Cache::write('App.trueTest', true);

		$this->assertTrue(Cache::read('App.trueTest'));

		Cache::write('App.nullTest', null);

		$this->assertNull(Cache::read('App.nullTest'));

		Cache::write('App.zeroTest', 0);

		$this->assertSame(Cache::read('App.zeroTest'), 0);

		Cache::write('App.zeroTest2', '0');

		$this->assertSame(Cache::read('App.zeroTest2'), '0');

	}

/**

 * Test that failed writes cause errors to be triggered.

 *

 * @return void

 */

	public function testWriteTriggerError() {

		App::build(array(

			'Lib' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Lib' . DS),

			'Plugin' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS)

		), App::RESET);

		Cache::config('test_trigger', array('engine' => 'TestAppCache', 'prefix' => ''));

		try {

			Cache::write('fail', 'value', 'test_trigger');

			$this->fail('No exception thrown');

		} catch (PHPUnit_Framework_Error $e) {

			$this->assertTrue(true);

		}

		Cache::drop('test_trigger');

		App::build();

	}

/**

 * testCacheDisable method

 *

 * Check that the "Cache.disable" configuration and a change to it

 * (even after a cache config has been setup) is taken into account.

 *

 * @return void

 */

	public function testCacheDisable() {

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

		Cache::config('test_cache_disable_1', array('engine' => 'File', 'path' => TMP . 'tests'));

		$this->assertTrue(Cache::write('key_1', 'hello', 'test_cache_disable_1'));

		$this->assertSame(Cache::read('key_1', 'test_cache_disable_1'), 'hello');

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

		$this->assertFalse(Cache::write('key_2', 'hello', 'test_cache_disable_1'));

		$this->assertFalse(Cache::read('key_2', 'test_cache_disable_1'));

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

		$this->assertTrue(Cache::write('key_3', 'hello', 'test_cache_disable_1'));

		$this->assertSame(Cache::read('key_3', 'test_cache_disable_1'), 'hello');

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

		Cache::config('test_cache_disable_2', array('engine' => 'File', 'path' => TMP . 'tests'));

		$this->assertFalse(Cache::write('key_4', 'hello', 'test_cache_disable_2'));

		$this->assertFalse(Cache::read('key_4', 'test_cache_disable_2'));

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

		$this->assertTrue(Cache::write('key_5', 'hello', 'test_cache_disable_2'));

		$this->assertSame(Cache::read('key_5', 'test_cache_disable_2'), 'hello');

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

		$this->assertFalse(Cache::write('key_6', 'hello', 'test_cache_disable_2'));

		$this->assertFalse(Cache::read('key_6', 'test_cache_disable_2'));

	}

/**

 * testSet method

 *

 * @return void

 */

	public function testSet() {

		$_cacheSet = Cache::set();

		Cache::set(array('duration' => '+1 year'));

		$data = Cache::read('test_cache');

		$this->assertFalse($data);

		$data = 'this is just a simple test of the cache system';

		$write = Cache::write('test_cache', $data);

		$this->assertTrue($write);

		Cache::set(array('duration' => '+1 year'));

		$data = Cache::read('test_cache');

		$this->assertEquals('this is just a simple test of the cache system', $data);

		Cache::delete('test_cache');

		Cache::settings();

		Cache::set($_cacheSet);

	}

/**

 * test set() parameter handling for user cache configs.

 *

 * @return void

 */

	public function testSetOnAlternateConfigs() {

		Cache::config('file_config', array('engine' => 'File', 'prefix' => 'test_file_'));

		Cache::set(array('duration' => '+1 year'), 'file_config');

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

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

		$this->assertEquals(strtotime('+1 year') - time(), $settings['duration']);

	}

/**

 * test remember method.

 *

 * @return void

 */

	public function testRemember() {

		$expected = 'This is some data 0';

		$result = Cache::remember('test_key', array($this, 'cacher'), 'default');

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

		$this->_count = 1;

		$result = Cache::remember('test_key', array($this, 'cacher'), 'default');

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

	}

/**

 * Method for testing Cache::remember()

 *

 * @return string

 */

	public function cacher() {

		return 'This is some data ' . $this->_count;

	}

}