table.put("foo", 12, 'b');
    table.put("bar", 5, 'c');
    table.put("cat", 8, 'd');
    assertThat(table.rowKeySet()).containsExactly("foo", "cat", "bar").inOrder();
    assertThat(table.row("foo").keySet()).containsExactly(12, 3).inOrder();
  }

  public void testCreateCopy() {
    TreeBasedTable<String, Integer, Character> original =

        .isWithin(ALLOWED_ERROR)
        .of(SIXTEEN_SQUARES_DECILE_1);
    assertThat(dataset)
        .usingExactEquality()
        .containsExactlyElementsIn(SIXTEEN_SQUARES_DOUBLES)
        .inOrder();
  }

  public void testScale_index_compute_longVarargs() {
    long[] dataset = Longs.toArray(SIXTEEN_SQUARES_LONGS);
    assertThat(Quantiles.scale(10).index(1).compute(dataset))
        .isWithin(ALLOWED_ERROR)

        .isWithin(ALLOWED_ERROR)
        .of(SIXTEEN_SQUARES_DECILE_1);
    assertThat(dataset)
        .usingExactEquality()
        .containsExactlyElementsIn(SIXTEEN_SQUARES_DOUBLES)
        .inOrder();
  }

  public void testScale_index_compute_longVarargs() {
    long[] dataset = Longs.toArray(SIXTEEN_SQUARES_LONGS);
    assertThat(Quantiles.scale(10).index(1).compute(dataset))
        .isWithin(ALLOWED_ERROR)

    ExecutorService service = mock(ExecutorService.class);
    application.addDelayedShutdownHook(service, 2, SECONDS);
    verify(service, Mockito.never()).shutdown();
    application.shutdown();
    InOrder shutdownFirst = Mockito.inOrder(service);
    shutdownFirst.verify(service).shutdown();
    shutdownFirst.verify(service).awaitTermination(2, SECONDS);
  }

    assertThat(tail).containsExactly("c", "A", "B", "C").inOrder();
  }

  public void testSkip_structurallyModifiedSkipSomeList() throws Exception {
    List<String> list = newArrayList("a", "b", "c");
    Iterable<String> tail = skip(list, 1);
    list.subList(1, 3).clear();
    list.addAll(0, newArrayList("A", "B", "C"));
    assertThat(tail).containsExactly("B", "C", "a").inOrder();
  }

    multimap.put("foo", 2);
    LinkedListMultimap<String, Integer> copy = LinkedListMultimap.create(multimap);
    assertEquals(multimap, copy);
    assertThat(copy.entries()).containsExactlyElementsIn(multimap.entries()).inOrder();
  }

  public void testCreateFromSize() {
    LinkedListMultimap<String, Integer> multimap = LinkedListMultimap.create(20);
    multimap.put("foo", 1);
    multimap.put("bar", 2);
    multimap.put("foo", 3);

    assertThat(cartesianProduct(list(1), list(2, 3)))
        .containsExactly(list(1, 2), list(1, 3))
        .inOrder();
  }

  public void testCartesianProduct_binary2x2() {
    assertThat(cartesianProduct(list(1, 2), list(3, 4)))
        .containsExactly(list(1, 3), list(1, 4), list(2, 3), list(2, 4))
        .inOrder();
  }

  public void testCartesianProduct_2x2x2() {

    multiset.add("c", 2);

    List<String> actualValues = new ArrayList<>();
    multiset.spliterator().forEachRemaining(actualValues::add);
    assertThat(multiset).containsExactly("a", "a", "a", "b", "c", "c").inOrder();
  }

    assertThat(map.entrySet())
        .containsExactly(mapEntry(AnEnum.A, "a"), mapEntry(AnEnum.C, "c"), mapEntry(AnEnum.E, "e"))
        .inOrder();
  }

    Iterable<Integer> result =
        Traverser.forGraph(fixedSuccessors(Iterables.cycle(1, 2, 3))).breadthFirst(0);
    assertThat(Iterables.limit(result, 4)).containsExactly(0, 1, 2, 3).inOrder();
  }

  @Test
  public void forGraph_breadthFirst_diamond() {
    Traverser<Character> traverser = Traverser.forGraph(DIAMOND_GRAPH);
    assertEqualCharNodes(traverser.breadthFirst('a'), "abcd");