assertThat(snapshot.getSource(0)).isSameAs(snapshot.getSource(0))
    snapshot.close()
  }

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)
  fun rebuildJournalOnRepeatedReads(parameters: Pair<FileSystem, Boolean>) {
    setUp(parameters.first, parameters.second)
    set("a", "a", "a")
    set("b", "b", "b")
    while (taskFaker.isIdle()) {
      assertValue("a", "a", "a")