createSimpleCache example

class Psr16CacheTest extends SimpleCacheTest
{
    protected function setUp(): void
    {
        parent::setUp();

        if (\array_key_exists('testPrune', $this->skippedTests)) {
            return;
        }

        $pool = $this->createSimpleCache();
        if ($pool instanceof Psr16Cache) {
            $pool = ((array) $pool)[sprintf("\0%s\0pool", Psr16Cache::class)];
        }

        if (!$pool instanceof PruneableInterface) {
            $this->skippedTests['testPrune'] = 'Not a pruneable cache pool.';
        }

        try {
            \assert(false === true, new \Exception());
            $this->skippedTests['testGetInvalidKeys'] =