assertTrue(queryFieldConfig.facetFieldSet.contains("facet3"));
    }

    /**
     * Test that setting sort fields creates both array and Set.
     */
    @Test
    public void test_setSortFields_createsSet() {
        String[] fields = { "sort1", "sort2", "sort3" };
        queryFieldConfig.setSortFields(fields);

        // Verify array is set
        assertNotNull(queryFieldConfig.sortFields);

    public void test_getSortFields() {
        String[] fields = { "sort1", "sort2", "sort3" };
        queryFieldConfig.setSortFields(fields);

        String[] result = queryFieldConfig.getSortFields();
        assertSame(fields, result);
    }

    @Test
    public void test_setSortFields() {
        String[] fields = { "sort1", "sort2", "sort3" };
        queryFieldConfig.setSortFields(fields);

 */
@GwtCompatible
@NullMarked
public abstract class TestIntegerSortedSetGenerator extends TestIntegerSetGenerator {
  @Override
  protected abstract SortedSet<Integer> create(Integer[] elements);

  /** Sorts the elements by their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

  @Override
  public SortedSet<String> create(Object... elements) {
    return (SortedSet<String>) super.create(elements);
  }

  @Override
  protected abstract SortedSet<String> create(String[] elements);

  /** Sorts the elements by their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

    }
    return create(array);
  }

  protected abstract Multiset<AnEnum> create(AnEnum[] elements);

  @Override
  public AnEnum[] createArray(int length) {
    return new AnEnum[length];
  }

  /** Sorts the enums according to their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

    }
    return create(array);
  }

  protected abstract Set<AnEnum> create(AnEnum[] elements);

  @Override
  public AnEnum[] createArray(int length) {
    return new AnEnum[length];
  }

  /** Sorts the enums according to their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

 */
@GwtCompatible
@NullMarked
public abstract class TestIntegerSortedSetGenerator extends TestIntegerSetGenerator {
  @Override
  protected abstract SortedSet<Integer> create(Integer[] elements);

  /** Sorts the elements by their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

  @Override
  public SortedSet<String> create(Object... elements) {
    return (SortedSet<String>) super.create(elements);
  }

  @Override
  protected abstract SortedSet<String> create(String[] elements);

  /** Sorts the elements by their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

    }
    return create(array);
  }

  protected abstract Set<AnEnum> create(AnEnum[] elements);

  @Override
  public AnEnum[] createArray(int length) {
    return new AnEnum[length];
  }

  /** Sorts the enums according to their natural ordering. */
  /*
   * While the current implementation returns `this`, that's not something we mean to guarantee.

  private static byte flip(byte b) {
    return (byte) (b ^ 0x80);
  }

  /**
   * Sorts the array, treating its elements as unsigned bytes.
   *
   * @since 23.1
   */
  public static void sort(byte[] array) {
    checkNotNull(array);
    sort(array, 0, array.length);
  }

  /**
   * Sorts the array between {@code fromIndex} inclusive and {@code toIndex} exclusive, treating its