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<?php declare(strict_types=1);
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/*
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* This file is part of PHPUnit.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace PHPUnit\Util;
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use const DIRECTORY_SEPARATOR;
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use function array_diff;
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use function array_keys;
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use function fopen;
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use function get_defined_vars;
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use function sprintf;
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use function stream_resolve_include_path;
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/**
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* @internal This class is not covered by the backward compatibility promise for PHPUnit
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*/
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final class FileLoader
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{
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/**
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* Checks if a PHP sourcecode file is readable. The sourcecode file is loaded through the load() method.
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*
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* As a fallback, PHP looks in the directory of the file executing the stream_resolve_include_path function.
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* We do not want to load the Test.php file here, so skip it if it found that.
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* PHP prioritizes the include_path setting, so if the current directory is in there, it will first look in the
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* current working directory.
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*
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* @throws Exception
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*/
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public static function checkAndLoad(string $filename): string
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{
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$includePathFilename = stream_resolve_include_path($filename);
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$localFile = __DIR__ . DIRECTORY_SEPARATOR . $filename;
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if (!$includePathFilename ||
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$includePathFilename === $localFile ||
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!self::isReadable($includePathFilename)) {
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throw new Exception(
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sprintf('Cannot open file "%s".' . "\n", $filename)
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);
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}
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self::load($includePathFilename);
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return $includePathFilename;
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}
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/**
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* Loads a PHP sourcefile.
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*/
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public static function load(string $filename): void
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{
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$oldVariableNames = array_keys(get_defined_vars());
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/**
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* @noinspection PhpIncludeInspection
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*
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* @psalm-suppress UnresolvableInclude
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*/
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include_once $filename;
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$newVariables = get_defined_vars();
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foreach (array_diff(array_keys($newVariables), $oldVariableNames) as $variableName) {
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if ($variableName !== 'oldVariableNames') {
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$GLOBALS[$variableName] = $newVariables[$variableName];
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}
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}
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}
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/**
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* @see https://github.com/sebastianbergmann/phpunit/pull/2751
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*/
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private static function isReadable(string $filename): bool
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{
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return @fopen($filename, 'r') !== false;
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}
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}
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