}

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)
  fun `edit discarded after editor detached with concurrent write`(parameters: Pair<FileSystem, Boolean>) {
    setUp(parameters.first, parameters.second)
    Assumptions.assumeFalse(windows) // Windows can't have two concurrent editors.

    set("k1", "a", "a")

    // Create an editor, then detach it.
    val editor = cache.edit("k1")!!