try {
            settings.badword().add("aaaa");
            assertTrue(true);
        } catch (IllegalArgumentException e) {
            fail();
        }

        try {
            settings.badword().add("");
            fail();
        } catch (IllegalArgumentException e) {
            assertTrue(true);
        }

        try {
            settings.badword().add("aaaa bbb");
            fail();

   */
  @Test
  fun readAndWriteOverlapsMaintainConsistency() {
    Assumptions.assumeFalse(windows) // Can't edit while a read is in progress.

    val v1Creator = cache.edit("k1")!!
    v1Creator.setString(0, "AAaa")
    v1Creator.setString(1, "BBbb")
    v1Creator.commit()

    cache["k1"]!!.use { snapshot1 ->
      val inV1 = snapshot1.getSource(0).buffer()
      assertThat(inV1.readByte()).isEqualTo('A'.code.toByte())