public function testShouldRenameDirectoryNameAsStringInternal()
{
$dir = $this->rootDirectory->getChild('var/log/app');
$dir->addChild(vfsStream::newDirectory(80));
$child = $this->rootDirectory->getChild('var/log/app/80');
$child->rename(90);
static::assertNotNull($this->rootDirectory->getChild('var/log/app/90'));
}