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);

        List<SortBuilder<?>> sorts = queryContext.sortBuilders();
        assertNotNull(sorts);
        assertTrue(sorts.isEmpty());

        SortBuilder<?> sort = SortBuilders.fieldSort("field");
        queryContext.addSorts(sort);

        sorts = queryContext.sortBuilders();
        assertEquals(1, sorts.size());
        assertEquals(sort, sorts.get(0));
    }

      return "UnsignedLongs.lexicographicalComparator()";
    }
  }

  /**
   * Sorts the array, treating its elements as unsigned 64-bit integers.
   *
   * @since 23.1
   */
  public static void sort(long[] array) {
    checkNotNull(array);
    sort(array, 0, array.length);
  }

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

  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

      return "UnsignedInts.lexicographicalComparator()";
    }
  }

  /**
   * Sorts the array, treating its elements as unsigned 32-bit integers.
   *
   * @since 23.1
   */
  public static void sort(int[] array) {
    checkNotNull(array);
    sort(array, 0, array.length);
  }

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

        this.additionalQuery = additionalQuery;
    }

    /**
     * Adds a default sort configuration to be applied when no explicit sorting is specified.
     * This method appends the new sort to existing default sorts.
     *
     * @param fieldName the field name to sort by
     * @param order the sort order ("ASC" or "DESC")
     */
    public void addDefaultSort(final String fieldName, final String order) {

      return checkedCreate(nullCheckedTreeSet(elements)).descendingSet();
    }

    /** Sorts the elements in reverse natural order. */
    @SuppressWarnings("CanIgnoreReturnValueSuggester") // see ImmutableSortedSetExplicitComparator
    @Override
    public List<Integer> order(List<Integer> insertionOrder) {
      sort(insertionOrder, Ordering.<Integer>natural().reverse());
      return insertionOrder;
    }
  }

      return checkedCreate(nullCheckedTreeSet(elements)).descendingSet();
    }

    /** Sorts the elements in reverse natural order. */
    @SuppressWarnings("CanIgnoreReturnValueSuggester") // see ImmutableSortedSetExplicitComparator
    @Override
    public List<Integer> order(List<Integer> insertionOrder) {
      sort(insertionOrder, Ordering.<Integer>natural().reverse());
      return insertionOrder;
    }
  }

import static com.google.common.collect.CollectPreconditions.checkNonnegative;
import static java.util.Arrays.asList;
import static java.util.Arrays.sort;
import static java.util.Collections.emptyList;
import static java.util.Collections.sort;
import static java.util.Collections.unmodifiableList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;