@TempDir lateinit var cacheDirFile: File
  lateinit var cacheDir: Path
  private val appVersion = 100
  private lateinit var journalFile: Path
  private lateinit var journalBkpFile: Path
  private val taskFaker = TaskFaker()
  private val taskRunner = taskFaker.taskRunner
  private lateinit var cache: DiskLruCache
  private val toClose = ArrayDeque<DiskLruCache>()

  private fun createNewCache() {