.startObject()
                                .startObject("properties")
                                .startObject(FieldNames.ARRAY_KEY)
                                .field("type", "keyword")
                                .endObject()
                                .endObject()
                                .endObject())
                        .execute()

        // Test normal query
        String query = "test query";
        String field = "content";
        String[] keywords = SuggestUtil.parseQuery(query, field);
        assertNotNull(keywords);
        assertEquals(2, keywords.length);
        assertEquals("test", keywords[0]);
        assertEquals("query", keywords[1]);

        // Test empty query
        String[] emptyKeywords = SuggestUtil.parseQuery("", field);