new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        // Query only
        String[][] readings2 = new String[1][];
        readings2[0] = new String[] { "query1" };
        items[1] = new SuggestItem(new String[] { "クエリ1" }, readings2, new String[] { "content" }, 0, 1, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.QUERY);

        // No exception should be thrown
    }

    @Test
    public void testEscapeWildcardQuery() {
        // Test escaping asterisk
        String query1 = "test*query";
        String escaped1 = SuggestUtil.escapeWildcardQuery(query1);
        assertEquals("test\\*query", escaped1);

        // Test escaping question mark
        String query2 = "test?query";

        chatClient.resetSearchDocumentsCalled();
        chatClient.testSearchWithQuery("query1");
        chatClient.testSearchWithQuery("query2");
        assertEquals(2, chatClient.getSearchedQueries().size());
        assertEquals("query1", chatClient.getSearchedQueries().get(0));
        assertEquals("query2", chatClient.getSearchedQueries().get(1));
    }