editor.setString(1, "a2")
    editor.commit()
    assertValue("a", "a", "a2")
  }

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)
  fun editSnapshotAfterChangeAborted(parameters: Pair<FileSystem, Boolean>) {
    setUp(parameters.first, parameters.second)
    set("a", "a", "a")
    val snapshot = cache["a"]!!
    snapshot.close()
    val toAbort = snapshot.edit()!!