FactoryTest.php

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<?php
namespace TYPO3\CMS\Core\Tests\Unit\Cache;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

class FactoryTest extends \TYPO3\CMS\Core\Tests\UnitTestCase
{
    public function createReturnsInstanceOfTheSpecifiedCacheFrontend()
    {
        $mockCacheManager = $this->getMock(\TYPO3\CMS\Core\Cache\CacheManager::class, ['registerCache'], [], '', false);
        $factory = new \TYPO3\CMS\Core\Cache\CacheFactory('Testing', $mockCacheManager);
        $cache = $factory->create('TYPO3_Cache_FactoryTest_Cache', \TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class, \TYPO3\CMS\Core\Cache\Backend\NullBackend::class);
        $this->assertInstanceOf(\TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class, $cache);
    }

    public function createInjectsAnInstanceOfTheSpecifiedBackendIntoTheCacheFrontend()
    {
        $mockCacheManager = $this->getMock(\TYPO3\CMS\Core\Cache\CacheManager::class, ['registerCache'], [], '', false);
        $factory = new \TYPO3\CMS\Core\Cache\CacheFactory('Testing', $mockCacheManager);
        $cache = $factory->create('TYPO3_Cache_FactoryTest_Cache', \TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class, \TYPO3\CMS\Core\Cache\Backend\FileBackend::class);
        $this->assertInstanceOf(\TYPO3\CMS\Core\Cache\Backend\FileBackend::class, $cache->getBackend());
    }

    public function createRegistersTheCacheAtTheCacheManager()
    {
        $mockCacheManager = $this->getMock(\TYPO3\CMS\Core\Cache\CacheManager::class, ['registerCache'], [], '', false);
        $mockCacheManager->expects($this->once())->method('registerCache');
        $factory = new \TYPO3\CMS\Core\Cache\CacheFactory('Testing', $mockCacheManager);
        $factory->create('TYPO3_Cache_FactoryTest_Cache', \TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class, \TYPO3\CMS\Core\Cache\Backend\FileBackend::class);
    }
}