String bulkLine = SuggestUtil.createBulkLine("test_index", "_doc", item);
        assertNotNull(bulkLine);
        assertTrue(bulkLine.contains("minimal"));
    }

    @Test
    public void testParseQueryWithSpecialCharacters() {
        // Test query with special characters
        String query = "test+query-search";
        String field = "content";
        String[] keywords = SuggestUtil.parseQuery(query, field);