new SparseImmutableTable<>(CELLS.asList(), ROW_SPACE, COLUMN_SPACE);

  private static final DenseImmutableTable<Character, Integer, String> DENSE =
      new DenseImmutableTable<>(CELLS.asList(), ROW_SPACE, COLUMN_SPACE);

  @Override
  Iterable<ImmutableTable<Character, Integer, String>> getTestInstances() {
    return ImmutableList.<ImmutableTable<Character, Integer, String>>of(SPARSE, DENSE);
  }

     */
    map.put(Integer.class, new Integer(5));
    assertThrows(ClassCastException.class, () -> map.put(Double.class, new Long(42)));
    // Won't compile: map.put(String.class, "x");
  }

  public void testPutAndGetInstance() {
    assertNull(map.putInstance(Integer.class, new Integer(5)));

    Integer oldValue = map.putInstance(Integer.class, new Integer(7));
    assertEquals(5, (int) oldValue);

  public void testTransformValues() {
    SetMultimap<String, Integer> multimap =
        ImmutableSetMultimap.of("a", 2, "b", -3, "b", 3, "a", 4, "c", 6);
    Function<Integer, Integer> square =
        new Function<Integer, Integer>() {
          @Override
          public Integer apply(Integer in) {
            return in * in;
          }
        };
    Multimap<String, Integer> transformed = Multimaps.transformValues(multimap, square);

    }
    cutsToTest.add(Cut.<Integer>aboveAll());
    cutsToTest.add(Cut.<Integer>belowAll());
    CUTS_TO_TEST = ImmutableList.copyOf(cutsToTest);
  }

  private void testRangesByLowerBounds(
      TreeRangeSet<Integer> rangeSet, Iterable<Range<Integer>> expectedRanges) {
    NavigableMap<Cut<Integer>, Range<Integer>> expectedRangesByLowerBound = Maps.newTreeMap();
    for (Range<Integer> range : expectedRanges) {

    CountingRemovalListener<Integer, Integer> removalListener = countingRemovalListener();
    IdentityLoader<Integer> loader = identityLoader();

    // Even numbers are free, odd are too expensive
    Weigher<Integer, Integer> evensOnly =
        new Weigher<Integer, Integer>() {
          @Override
          public int weigh(Integer k, Integer v) {
            return k % 2;
          }
        };

    assertEquals(foo, bar);

    List<Integer> list = asList(3, foo, bar, -1);
    List<Integer> result = numberOrdering.leastOf(list, list.size());
    assertEquals(ImmutableList.of(-1, 3, foo, bar), result);
  }

  public void testLeastOfIterator_ties() {
    Integer foo = new Integer(Integer.MAX_VALUE - 10);
    Integer bar = new Integer(Integer.MAX_VALUE - 10);

    assertNotSame(foo, bar);

    assertEquals(foo, bar);

    List<Integer> list = asList(3, foo, bar, -1);
    List<Integer> result = numberOrdering.leastOf(list, list.size());
    assertEquals(ImmutableList.of(-1, 3, foo, bar), result);
  }

  public void testLeastOfIterator_ties() {
    Integer foo = new Integer(Integer.MAX_VALUE - 10);
    Integer bar = new Integer(Integer.MAX_VALUE - 10);

    assertNotSame(foo, bar);

        @Override
        public BigInteger apply(Long n) {
          return BigInteger.valueOf(n);
        }
      };

  private static final Function<Integer, Integer> NEGATE_INT =
      new Function<Integer, Integer>() {
        @Override
        public Integer apply(Integer x) {
          return -x;
        }
      };

  private static final Function<Long, Long> NEGATE_LONG =
      new Function<Long, Long>() {

        @Override
        public BigInteger apply(Long n) {
          return BigInteger.valueOf(n);
        }
      };

  private static final Function<Integer, Integer> NEGATE_INT =
      new Function<Integer, Integer>() {
        @Override
        public Integer apply(Integer x) {
          return -x;
        }
      };

  private static final Function<Long, Long> NEGATE_LONG =
      new Function<Long, Long>() {

      @Override
      public Queue<Integer> create(Comparator<Integer> comparator) {
        return new InvertedMinMaxPriorityQueue<>(comparator);
      }
    };

    public abstract Queue<Integer> create(Comparator<Integer> comparator);
  }

  /**
   * Does a CPU intensive operation on Integer and returns a BigInteger Used to implement an
   * ordering that spends a lot of cpu.
   */