Map.of("_default", List.of("QUERY1 QUERY2")), //
                Set.of("QUERY1", "QUERY2"), //
                buildQuery("\"QUERY1 QUERY2\""));
        assertQueryContext(buildQuery("\"QUERY1 QUERY2\"").getQueryBuilder().toString().replaceAll("\\s", ""),
                buildQuery("aaa:\"QUERY1 QUERY2\""));

        assertQueryContext(

        try {
            List<String> keywordList = Collections.emptyList();
            List<FilterFunctionBuilder> functionBuilders = new ArrayList<>();

            try {
                keyMatchHelper.buildQuery(keywordList, functionBuilders);
            } catch (Exception e) {
                // Expected due to missing dependencies in test environment
                assertTrue(true);
                return;
            }

    public void test_fieldQueryBuilder_interface() {
        QueryCommand.FieldQueryBuilder builder = (field, text, boost) -> QueryBuilders.termQuery(field, text).boost(boost);

        QueryBuilder result = builder.buildQuery("title", "test", 2.0f);
        assertNotNull(result);
    }

    /**
     * Test DefaultQueryBuilderFunction functional interface.
     */
    @Test