ResourceCheckerConfigCache example

/** * @param iterable<int, ResourceCheckerInterface> $resourceCheckers */
    public function __construct(iterable $resourceCheckers = [])
    {
        $this->resourceCheckers = $resourceCheckers;
    }

    public function cache(string $file, callable $callable): ConfigCacheInterface
    {
        $cache = new ResourceCheckerConfigCache($file, $this->resourceCheckers);
        if (!$cache->isFresh()) {
            $callable($cache);
        }

        return $cache;
    }
}

'cache_dir' => $cacheDir,
            ]);

            $resourceCheckers = [
                new ContainerParametersResourceChecker($container),
            ];

            $router->setConfigCacheFactory(new ResourceCheckerConfigCacheFactory($resourceCheckers));

            $router->getMatcher(); // trigger cache build
            $cache = new ResourceCheckerConfigCache($cacheDir.\DIRECTORY_SEPARATOR.'url_matching_routes.php', $resourceCheckers);

            $this->assertTrue($cache->isFresh());
        } finally {
            if (is_dir($cacheDir)) {
                array_map('unlink', glob($cacheDir.\DIRECTORY_SEPARATOR.'*'));
                rmdir($cacheDir);
            }
        }
    }

    public function testResolvingSchemes()
    {

$files = [$this->cacheFile, "{$this->cacheFile}.meta"];

        foreach ($files as $file) {
            if (file_exists($file)) {
                @unlink($file);
            }
        }
    }

    public function testGetPath()
    {
        $cache = new ResourceCheckerConfigCache($this->cacheFile);

        $this->assertSame($this->cacheFile, $cache->getPath());
    }

    public function testCacheIsNotFreshIfEmpty()
    {
        $checker = $this->createMock(ResourceCheckerInterface::class)
            ->expects($this->never())->method('supports');

        /* If there is nothing in the cache, it needs to be filled (and thus it's not fresh). It does not matter if you provide checkers or not. */