@Test
    public void test_execute_withMatchAllDocsQuery() {
        BooleanQuery.Builder boolQueryBuilder = new BooleanQuery.Builder();
        MatchAllDocsQuery matchAllQuery = new MatchAllDocsQuery();
        boolQueryBuilder.add(matchAllQuery, BooleanClause.Occur.MUST);
        BooleanQuery booleanQuery = boolQueryBuilder.build();

        QueryContext context = new QueryContext("test", false);

    }

    @Test
    public void test_execute_withMatchAllDocsQuery() {
        // Test executing BoostQuery with a MatchAllDocsQuery inside
        MatchAllDocsQuery matchAllQuery = new MatchAllDocsQuery();
        BoostQuery boostQuery = new BoostQuery(matchAllQuery, 3.0f);

        QueryContext context = new QueryContext("test", false);
        QueryBuilder result = queryProcessor.execute(context, boostQuery, 1.0f);

        assertNotNull(result);
        assertTrue("Empty query should produce MatchAllQuery", result instanceof MatchAllQueryBuilder);
    }

    @Test
    public void test_buildQuery_nullQuery() {
        QueryBuilder result = request.buildQuery(null, Collections.emptyList());
        assertNotNull(result);
        assertTrue("Null query should produce MatchAllQuery", result instanceof MatchAllQueryBuilder);
    }

    @Test

    // Test addQuery with MatchAllQueryBuilder
    @Test
    public void test_addQuery_withMatchAllQuery() {
        queryContext = new QueryContext("test", false);
        queryContext.setQueryBuilder(QueryBuilders.matchAllQuery());

        queryContext.addQuery(boolQuery -> {
            boolQuery.must(QueryBuilders.termQuery("field", "value"));
        });

        QueryBuilder result = queryContext.getQueryBuilder();

            return null;
        }).when(mockClearScrollBuilder).execute(any(ActionListener.class));

        final int deleted = fesenClient.deleteByQuery("test-index", QueryBuilders.matchAllQuery());

        assertEquals(1, deleted);
        verify(mockClearScrollBuilder, times(1)).addScrollId("scroll1");
    }

    /**
     * Test: deleteByQuery deprecated method delegates to new method

     */
    private static class TestQueryCommand extends QueryCommand {

        @Override
        public QueryBuilder execute(QueryContext context, Query query, float boost) {
            return QueryBuilders.matchAllQuery();
        }

        @Override
        protected String getQueryClassName() {
            return "TestQuery";
        }

        // Expose protected methods for testing
        @Override

                this.formatter != null ? this.formatter : createFormatter(fessConfig.getIndexExportFormat());

        final QueryBuilder query = queryBuilder != null ? queryBuilder : QueryBuilders.matchAllQuery();

        if (logger.isInfoEnabled()) {
            logger.info("[EXPORT] Starting index export: path={}, scrollSize={}, excludeFields={}, query={}", exportPath, scrollSize,
                    excludeFields, query);

    protected int maxRetryCount = 5;
    /** Limit of document size. */
    protected long limitOfDocumentSize = 50000;
    /** Query builder. */
    protected QueryBuilder queryBuilder = QueryBuilders.matchAllQuery();
    /** Limit percentage. */
    protected int limitPercentage = 100;
    /** Limit number. */
    protected long limitNumber = -1;
    /** Sort list. */

                }
            } else if (queryBuilder != null) {
                builder.setQuery(queryBuilder);
            } else {
                builder.setQuery(QueryBuilders.matchAllQuery());
            }
            if (sortBuilders != null) {
                for (SortBuilder<?> sortBuilder : sortBuilders) {
                    builder.addSort(sortBuilder);
                }
            }

    }

    /**
     * Returns the total number of words in the suggestion index.
     * @return The total number of words.
     */
    public long getAllWordsNum() {
        return getNum(QueryBuilders.matchAllQuery());
    }

    /**
     * Returns the number of document words in the suggestion index.
     * @return The number of document words.
     */
    public long getDocumentWordsNum() {