// Align to 8-byte boundary
        ndrBuffer.setIndex(5);
        alignedBytes = ndrBuffer.align(8);
        assertEquals(3, alignedBytes); // Should advance by 3 bytes (5 -> 8)
        assertEquals(8, ndrBuffer.getIndex());
    }

    @Test
    void testEncDecNdrSmall() {
        ndrBuffer.enc_ndr_small(0xAB);
        assertEquals(1, ndrBuffer.getIndex());

                writer.write(runner.client(), suggester.settings(), suggester.getIndex(), new SuggestItem[] { item }, false);

        assertNotNull(result);
        assertFalse(result.hasFailure());

        runner.refresh();

        GetResponse getResponse =
                runner.client().prepareGet().setIndex(suggester.getIndex()).setId(item.getId()).get(TimeValue.timeValueSeconds(30));

    public void testDeleteByQuery() {
        // Create test data
        client.prepareIndex().setIndex(TEST_INDEX).setId("1").setSource("field", "value1").execute().actionGet();
        client.prepareIndex().setIndex(TEST_INDEX).setId("2").setSource("field", "value2").execute().actionGet();
        client.admin().indices().prepareRefresh(TEST_INDEX).execute().actionGet();

        // Delete by query

    private static OpenSearchRunner runner;
    private static Client client;
    private static SuggestSettings settings;
    private AnalyzerConverter converter;
    private static final String TEST_INDEX = "test_analyzer_index";
    private static final String SUGGEST_INDEX = ".suggest";

    @BeforeClass
    public static void beforeClass() throws Exception {
        runner = new OpenSearchRunner();

            message.ptype = DcerpcConstants.RPC_PT_REQUEST; // 0
            message.call_id = 1;
            message.opnumValue = 5;

            when(mockBuffer.getIndex()).thenReturn(0).thenReturn(16).thenReturn(20).thenReturn(24);
            lenient().doNothing().when(mockBuffer).advance(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_long(anyInt());

        final List<SuggestItem> firstItems = new ArrayList<>();
        final List<SuggestItem> secondItems = new ArrayList<>();

        final String index;
        if (hits.length > 0) {
            index = hits[0].getIndex();
        } else {
            index = SuggestConstants.EMPTY_STRING;
        }

        final boolean singleWordQuery = isSingleWordQuery(query);
        final boolean hiraganaQuery = isHiraganaQuery(query);

    }

    /**
     * Creates a new PopularWordsRequestBuilder for querying popular words.
     * @return A PopularWordsRequestBuilder instance.
     */
    public PopularWordsRequestBuilder popularWords() {
        return new PopularWordsRequestBuilder(client).setIndex(getSearchAlias(index));
    }

    /**

        suggester.createIndexIfNothing();
        Thread.sleep(100);

        // Create additional update index (making 2 total)
        final String updateAlias = suggester.getIndex() + ".update";
        final String extraIndexName = suggester.getIndex() + ".extra";

        client.admin().indices().prepareCreate(extraIndexName).execute().actionGet();

    /**
     * Gets the OpenSearch index name.
     *
     * @return The index name.
     */
    public String getIndex() {
        return index;
    }

    /**
     * Sets the OpenSearch index name.
     *
     * @param index The index name.
     */
    public void setIndex(final String index) {
        this.index = index;
    }

    /**
     * Gets the scroll timeout in milliseconds.

     *
     * @return the current index
     */
    public int getIndex() {
        return index;
    }

    /**
     * Sets the current index position in the buffer.
     *
     * @param index the new index position
     */
    public void setIndex(final int index) {
        this.index = index;
    }

    /**
     * Returns the capacity of the buffer.