snapshotB.assertValue(1, "GH")
    assertThat(filesystem.exists(journalBkpFile)).isFalse()
    assertThat(filesystem.exists(journalFile)).isTrue()
  }

  @Test
  fun openCreatesDirectoryIfNecessary() {
    cache.close()
    val dir = (cacheDir / "testOpenCreatesDirectoryIfNecessary").also { filesystem.createDirectories(it) }
    cache =