mergedItem.setKinds(mergeKinds(item1.getKinds(), item2.getKinds()));

        // Take newer values from item2
        mergedItem.setTimestamp(item2.getTimestamp());
        mergedItem.setUserBoost(item2.getUserBoost());
        mergedItem.setEmptySource(item2.toEmptyMap());

        // Sum frequencies
        mergedItem.setQueryFreq(item1.getQueryFreq() + item2.getQueryFreq());

     */
    public long getDocFreq() {
        return docFreq;
    }

    /**
     * Returns the user boost of the suggest item.
     * @return The user boost.
     */
    public float getUserBoost() {
        return userBoost;
    }

    /**
     * Returns the timestamp of the suggest item.
     * @return The timestamp.
     */
    public ZonedDateTime getTimestamp() {

        assertEquals(1, response1.getNum());
        assertEquals(1, response1.getTotal());
        assertEquals(2.0f, response1.getItems().get(0).getUserBoost(), 0);

        ElevateWord[] elevateWords = suggester.settings().elevateWord().get();
        assertEquals(1, elevateWords.length);
        assertEquals("test", elevateWords[0].getElevateWord());

        map.put(FieldNames.QUERY_FREQ, item.getQueryFreq());
        map.put(FieldNames.DOC_FREQ, item.getDocFreq());
        map.put(FieldNames.USER_BOOST, item.getUserBoost());
        map.put(FieldNames.SCORE, (item.getQueryFreq() + item.getDocFreq()) * item.getUserBoost());
        map.put(FieldNames.TIMESTAMP, item.getTimestamp().toInstant().toEpochMilli());
        return map;
    }

    /**

        SuggestItem item = new SuggestItem(text, readings, null, 0L, 0L, 0.0f, null, null, null, SuggestItem.Kind.QUERY);

        // User boost should be at least 1
        assertEquals(1.0f, item.getUserBoost(), 0.001f);
    }

    @Test
    public void test_userBoostNegative() {
        String[] text = { "test" };
        String[][] readings = { { "test" } };

        assertNotNull(item);
        assertEquals("test text", item.getText());
        assertEquals(10L, item.getDocFreq());
        assertEquals(5L, item.getQueryFreq());
        assertEquals(1.5f, item.getUserBoost(), 0.001f);
    }

    @Test
    public void testToJson() {
        String[] text = { "json test" };
        String[][] readings = { { "reading" } };
        String[] fields = { "field" };

        assertNotNull(merged);
        assertEquals(30L, merged.getDocFreq()); // 10 + 20
        assertEquals(20L, merged.getQueryFreq()); // 5 + 15
        assertEquals(2.0f, merged.getUserBoost(), 0.001f); // max(1.0, 2.0)
    }

    @Test
    public void testMerge_tags() {
        SuggestItem item1 = createItemWithTags("text", "tag1", "tag2");