.comparator());

    sortedTable = TreeBasedTable.create(Collections.reverseOrder(), Ordering.usingToString());
    sortedTable.put("", 42, 'x');
    assertSame(Ordering.usingToString(), sortedTable.columnComparator());
    assertSame(
        Ordering.usingToString(),
        ((SortedMap<Integer, Character>) sortedTable.rowMap().values().iterator().next())
            .comparator());
  }

                .compare(1L, 1L)
                .compareFalseFirst(true, true)
                .compare(1.0, 1.0)
                .compare(1.0f, 1.0f)
                .compare("a", "a", Ordering.usingToString())
                .result())
        .isEqualTo(0);
  }

  public void testShortCircuitLess() {
    assertThat(
            ComparisonChain.start()
                .compare("a", "b")

    Helpers.testComparator(arbitrary, list);
  }

  public void testUsingToString() {
    Ordering<Object> ordering = Ordering.usingToString();
    Helpers.testComparator(ordering, 1, 12, 124, 2);
    assertEquals("Ordering.usingToString()", ordering.toString());
    assertSame(ordering, reserialize(ordering));
  }

  // use an enum to get easy serializability

  private static final Ordering<Invokable<?, ?>> BY_PARAMETERS =
      new Ordering<Invokable<?, ?>>() {
        @Override
        public int compare(Invokable<?, ?> left, Invokable<?, ?> right) {
          return Ordering.usingToString().compare(left.getParameters(), right.getParameters());
        }
      };

  private static final Ordering<Invokable<?, ?>> BY_NUMBER_OF_PARAMETERS =
      new Ordering<Invokable<?, ?>>() {
        @Override

   * <p>The comparator is serializable.
   *
   * <p><b>Java 8+ users:</b> Use {@code Comparator.comparing(Object::toString)} instead.
   */
  @GwtCompatible(serializable = true)
  public static Ordering<Object> usingToString() {
    return UsingToStringOrdering.INSTANCE;
  }

  /**
   * Returns an arbitrary ordering over all objects, for which {@code compare(a, b) == 0} implies

   * <p>The comparator is serializable.
   *
   * <p><b>Java 8+ users:</b> Use {@code Comparator.comparing(Object::toString)} instead.
   */
  @GwtCompatible(serializable = true)
  public static Ordering<Object> usingToString() {
    return UsingToStringOrdering.INSTANCE;
  }

  /**
   * Returns an arbitrary ordering over all objects, for which {@code compare(a, b) == 0} implies

  private static final Ordering<Invokable<?, ?>> BY_PARAMETERS =
      new Ordering<Invokable<?, ?>>() {
        @Override
        public int compare(Invokable<?, ?> left, Invokable<?, ?> right) {
          return Ordering.usingToString().compare(left.getParameters(), right.getParameters());
        }
      };

  private static final Ordering<Invokable<?, ?>> BY_NUMBER_OF_PARAMETERS =
      new Ordering<Invokable<?, ?>>() {
        @Override