assertFalse(testInstance.isEmpty());
    }
  }

  public void testForCells() {
    assertTrue(RegularImmutableTable.forCells(CELLS) instanceof DenseImmutableTable<?, ?, ?>);
    assertTrue(
        RegularImmutableTable.forCells(
                ImmutableSet.of(
                    immutableCell('a', 1, "blah"),
                    immutableCell('b', 2, "blah"),

    @Override
    @J2ktIncompatible
    @GwtIncompatible
        Object writeReplace() {
      return super.writeReplace();
    }
  }

  static <R, C, V> RegularImmutableTable<R, C, V> forCells(
      List<Cell<R, C, V>> cells,
      @Nullable Comparator<? super R> rowComparator,
      @Nullable Comparator<? super C> columnComparator) {
    checkNotNull(cells);

      switch (size) {
        case 0:
          return of();
        case 1:
          return new SingletonImmutableTable<>(getOnlyElement(cells));
        default:
          return RegularImmutableTable.forCells(cells, rowComparator, columnComparator);
      }
    }
  }

  ImmutableTable() {}

  @Override
  public ImmutableSet<Cell<R, C, V>> cellSet() {

      switch (size) {
        case 0:
          return of();
        case 1:
          return new SingletonImmutableTable<>(getOnlyElement(cells));
        default:
          return RegularImmutableTable.forCells(cells, rowComparator, columnComparator);
      }
    }
  }

  ImmutableTable() {}

  @Override
  public ImmutableSet<Cell<R, C, V>> cellSet() {