UnitTestCase.php

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

/*
 * 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!
 */

use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\PathUtility;
use TYPO3\CMS\Core\Utility\StringUtility;

abstract class UnitTestCase extends BaseTestCase
{
    protected $backupGlobalsBlacklist = ['TYPO3_LOADED_EXT'];

    protected $testFilesToDelete = [];

    protected function tearDown()
    {
        // Unset properties of test classes to safe memory
        $reflection = new \ReflectionObject($this);
        foreach ($reflection->getProperties() as $property) {
            $declaringClass = $property->getDeclaringClass()->getName();
            if (
                !$property->isStatic()
                && $declaringClass !== \TYPO3\CMS\Core\Tests\UnitTestCase::class
                && $declaringClass !== \TYPO3\CMS\Core\Tests\BaseTestCase::class
                && strpos($property->getDeclaringClass()->getName(), 'PHPUnit_') !== 0
            ) {
                $propertyName = $property->getName();
                unset($this->$propertyName);
            }
        }
        unset($reflection);

        // Delete registered test files and directories
        foreach ($this->testFilesToDelete as $absoluteFileName) {
            $absoluteFileName = GeneralUtility::fixWindowsFilePath(PathUtility::getCanonicalPath($absoluteFileName));
            if (!GeneralUtility::validPathStr($absoluteFileName)) {
                throw new \RuntimeException('tearDown() cleanup: Filename contains illegal characters', 1410633087);
            }
            if (!StringUtility::beginsWith($absoluteFileName, PATH_site . 'typo3temp/')) {
                throw new \RuntimeException(
                    'tearDown() cleanup:  Files to delete must be within typo3temp/',
                    1410633412
                );
            }
            // file_exists returns false for links pointing to not existing targets, so handle links before next check.
            if (@is_link($absoluteFileName) || @is_file($absoluteFileName)) {
                unlink($absoluteFileName);
            } elseif (@is_dir($absoluteFileName)) {
                GeneralUtility::rmdir($absoluteFileName, true);
            } else {
                throw new \RuntimeException('tearDown() cleanup: File, link or directory does not exist', 1410633510);
            }
        }
        $this->testFilesToDelete = [];
    }
}