ConfigCacheFactory example

$input = new ArrayInput(['cache:clear']);
        $application = new Application($this->kernel);
        $application->setCatchExceptions(false);

        $application->doRun($input, new NullOutput());

        // Ensure that all *.meta files are fresh         $finder = new Finder();
        $metaFiles = $finder->files()->in($this->kernel->getCacheDir())->name('*.php.meta');
        // check that cache is warmed up         $this->assertNotEmpty($metaFiles);
        $configCacheFactory = new ConfigCacheFactory(true);

        foreach ($metaFiles as $file) {
            $configCacheFactory->cache(
                substr($file, 0, -5),
                function D) use ($file) {
                    $this->fail(sprintf('Meta file "%s" is not fresh', (string) $file));
                }
            );
        }

        // check that app kernel file present in meta file of container's cache

if (!preg_match('/^[a-z0-9@_\\.\\-]*$/i', $locale)) {
            throw new InvalidArgumentException(sprintf('Invalid "%s" locale.', $locale));
        }
    }

    /** * Provides the ConfigCache factory implementation, falling back to a * default implementation if necessary. */
    private function getConfigCacheFactory(): ConfigCacheFactoryInterface
    {
        $this->configCacheFactory ??= new ConfigCacheFactory($this->debug);

        return $this->configCacheFactory;
    }

    private function getAllMessages(MessageCatalogueInterface $catalogue): array
    {
        $allMessages = [];

        foreach ($catalogue->all() as $domain => $messages) {
            if ($intlMessages = $catalogue->all($domain.MessageCatalogue::INTL_DOMAIN_SUFFIX)) {
                $allMessages[$domain.MessageCatalogue::INTL_DOMAIN_SUFFIX] = $intlMessages;
                

namespace Symfony\Component\Config\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Config\ConfigCacheFactory;

class ConfigCacheFactoryTest extends TestCase
{
    public function testCacheWithInvalidCallback()
    {
        $this->expectException(\TypeError::class);
        $cacheFactory = new ConfigCacheFactory(true);

        $cacheFactory->cache('file', new \stdClass());
    }
}

protected function getMatcherDumperInstance(): MatcherDumperInterface
    {
        return new $this->options['matcher_dumper_class']($this->getRouteCollection());
    }

    /** * Provides the ConfigCache factory implementation, falling back to a * default implementation if necessary. */
    private function getConfigCacheFactory(): ConfigCacheFactoryInterface
    {
        return $this->configCacheFactory ??= new ConfigCacheFactory($this->options['debug']);
    }

    private static function getCompiledRoutes(string $path): array
    {
        if ([] === self::$cache && \function_exists('opcache_invalidate') && filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOL) && (!\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) || filter_var(\ini_get('opcache.enable_cli'), \FILTER_VALIDATE_BOOL))) {
            self::$cache = null;
        }

        if (null === self::$cache) {
            return require $path;
        }