set("a", "a", "a")
    filesystem.delete(getCleanFile("a", 1))
    assertThat(cache["a"]).isNull()
    assertThat(cache.size()).isEqualTo(0)
  }

  @Test
  fun editSameVersion() {
    set("a", "a", "a")
    val snapshot = cache["a"]!!
    snapshot.close()
    val editor = snapshot.edit()!!
    editor.setString(1, "a2")
    editor.commit()
    assertValue("a", "a", "a2")