set("a", "a", "a")
    set("b", "b", "b")
    while (taskFaker.isIdle()) {
      assertValue("a", "a", "a")
      assertValue("b", "b", "b")
    }
  }

  @Test
  fun rebuildJournalOnRepeatedEdits() {
    while (taskFaker.isIdle()) {
      set("a", "a", "a")
      set("b", "b", "b")
    }
    taskFaker.runNextTask()

    // Check that a rebuilt journal behaves normally.