Bitpay\Storage\EncryptedFilesystemStorageTest::testLoadNotReadableException PHP Метод

    public function testLoadNotReadableException()
    {
        $storage = new EncryptedFilesystemStorage('satoshi');
        vfsStream::newFile('public.key', 0600)->at($this->root)->setContent('')->chown(vfsStream::OWNER_ROOT)->chgrp(vfsStream::GROUP_ROOT);
        $storage->load(vfsStream::url('tmp/public.key'));
    }