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<?php
/**
* ApcEngineTest file
*
* PHP 5
*
* CakePHP(tm) Tests <http://book.cakephp.org/view/1196/Testing>
* Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice
*
* @copyright Copyright 2005-2012, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://book.cakephp.org/view/1196/Testing CakePHP(tm) Tests
* @package Cake.Test.Case.Cache.Engine
* @since CakePHP(tm) v 1.2.0.5434
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::uses('Cache', 'Cache');
/**
* ApcEngineTest class
*
* @package Cake.Test.Case.Cache.Engine
*/
class ApcEngineTest extends CakeTestCase {
/**
* setUp method
*
* @return void
*/
public function setUp() {
$this->skipIf(!function_exists('apc_store'), 'Apc is not installed or configured properly.');
$this->_cacheDisable = Configure::read('Cache.disable');
Configure::write('Cache.disable', false);
Cache::config('apc', array('engine' => 'Apc', 'prefix' => 'cake_'));
}
/**
* tearDown method
*
* @return void
*/
public function tearDown() {
Configure::write('Cache.disable', $this->_cacheDisable);
Cache::drop('apc');
Cache::drop('apc_groups');
Cache::config('default');
}
/**
* testReadAndWriteCache method
*
* @return void
*/
public function testReadAndWriteCache() {
Cache::set(array('duration' => 1), 'apc');
$result = Cache::read('test', 'apc');
$expecting = '';
$this->assertEquals($expecting, $result);
$data = 'this is a test of the emergency broadcasting system';
$result = Cache::write('test', $data, 'apc');
$this->assertTrue($result);
$result = Cache::read('test', 'apc');
$expecting = $data;
$this->assertEquals($expecting, $result);
Cache::delete('test', 'apc');
}
/**
* Writing cache entries with duration = 0 (forever) should work.
*
* @return void
*/
public function testReadWriteDurationZero() {
Cache::config('apc', array('engine' => 'Apc', 'duration' => 0, 'prefix' => 'cake_'));
Cache::write('zero', 'Should save', 'apc');
sleep(1);
$result = Cache::read('zero', 'apc');
$this->assertEquals('Should save', $result);
}
/**
* testExpiry method
*
* @return void
*/
public function testExpiry() {
Cache::set(array('duration' => 1), 'apc');
$result = Cache::read('test', 'apc');
$this->assertFalse($result);
$data = 'this is a test of the emergency broadcasting system';
$result = Cache::write('other_test', $data, 'apc');
$this->assertTrue($result);
sleep(2);
$result = Cache::read('other_test', 'apc');
$this->assertFalse($result);
Cache::set(array('duration' => 1), 'apc');
$data = 'this is a test of the emergency broadcasting system';
$result = Cache::write('other_test', $data, 'apc');
$this->assertTrue($result);
sleep(2);
$result = Cache::read('other_test', 'apc');
$this->assertFalse($result);
sleep(2);
$result = Cache::read('other_test', 'apc');
$this->assertFalse($result);
}
/**
* testDeleteCache method
*
* @return void
*/
public function testDeleteCache() {
$data = 'this is a test of the emergency broadcasting system';
$result = Cache::write('delete_test', $data, 'apc');
$this->assertTrue($result);
$result = Cache::delete('delete_test', 'apc');
$this->assertTrue($result);
}
/**
* testDecrement method
*
* @return void
*/
public function testDecrement() {
$this->skipIf(!function_exists('apc_dec'), 'No apc_dec() function, cannot test decrement().');
$result = Cache::write('test_decrement', 5, 'apc');
$this->assertTrue($result);
$result = Cache::decrement('test_decrement', 1, 'apc');
$this->assertEquals(4, $result);
$result = Cache::read('test_decrement', 'apc');
$this->assertEquals(4, $result);
$result = Cache::decrement('test_decrement', 2, 'apc');
$this->assertEquals(2, $result);
$result = Cache::read('test_decrement', 'apc');
$this->assertEquals(2, $result);
}
/**
* testIncrement method
*
* @return void
*/
public function testIncrement() {
$this->skipIf(!function_exists('apc_inc'), 'No apc_inc() function, cannot test increment().');
$result = Cache::write('test_increment', 5, 'apc');
$this->assertTrue($result);
$result = Cache::increment('test_increment', 1, 'apc');
$this->assertEquals(6, $result);
$result = Cache::read('test_increment', 'apc');
$this->assertEquals(6, $result);
$result = Cache::increment('test_increment', 2, 'apc');
$this->assertEquals(8, $result);
$result = Cache::read('test_increment', 'apc');
$this->assertEquals(8, $result);
}
/**
* test the clearing of cache keys
*
* @return void
*/
public function testClear() {
apc_store('not_cake', 'survive');
Cache::write('some_value', 'value', 'apc');
$result = Cache::clear(false, 'apc');
$this->assertTrue($result);
$this->assertFalse(Cache::read('some_value', 'apc'));
$this->assertEquals('survive', apc_fetch('not_cake'));
apc_delete('not_cake');
}
/**
* 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 testGroupsReadWrite() {
Cache::config('apc_groups', array('engine' => 'Apc', 'duration' => 0, 'groups' => array('group_a', 'group_b')));
$this->assertTrue(Cache::write('test_groups', 'value', 'apc_groups'));
$this->assertEquals('value', Cache::read('test_groups', 'apc_groups'));
apc_inc('group_a');
$this->assertFalse(Cache::read('test_groups', 'apc_groups'));
$this->assertTrue(Cache::write('test_groups', 'value2', 'apc_groups'));
$this->assertEquals('value2', Cache::read('test_groups', 'apc_groups'));
apc_inc('group_b');
$this->assertFalse(Cache::read('test_groups', 'apc_groups'));
$this->assertTrue(Cache::write('test_groups', 'value3', 'apc_groups'));
$this->assertEquals('value3', Cache::read('test_groups', 'apc_groups'));
}
/**
* Tests that deleteing from a groups-enabled config is possible
*
* @return void
*/
public function testGroupDelete() {
Cache::config('apc_groups', array('engine' => 'Apc', 'duration' => 0, 'groups' => array('group_a', 'group_b')));
$this->assertTrue(Cache::write('test_groups', 'value', 'apc_groups'));
$this->assertEquals('value', Cache::read('test_groups', 'apc_groups'));
$this->assertTrue(Cache::delete('test_groups', 'apc_groups'));
$this->assertFalse(Cache::read('test_groups', 'apc_groups'));
}
/**
* Test clearing a cache group
*
* @return void
**/
public function testGroupClear() {
Cache::config('apc_groups', array('engine' => 'Apc', 'duration' => 0, 'groups' => array('group_a', 'group_b')));
$this->assertTrue(Cache::write('test_groups', 'value', 'apc_groups'));
$this->assertTrue(Cache::clearGroup('group_a', 'apc_groups'));
$this->assertFalse(Cache::read('test_groups', 'apc_groups'));
$this->assertTrue(Cache::write('test_groups', 'value2', 'apc_groups'));
$this->assertTrue(Cache::clearGroup('group_b', 'apc_groups'));
$this->assertFalse(Cache::read('test_groups', 'apc_groups'));
}
}
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