SuggestItem merged = SuggestItem.merge(item1, item2);

        assertNotNull(merged);
        assertEquals("item1", merged.getText());
        assertEquals(150L, merged.getQueryFreq()); // Sum of frequencies
        assertEquals(75L, merged.getDocFreq()); // Sum of frequencies
        assertEquals(1.5f, merged.getUserBoost(), 0.001f); // Takes item2's boost

        return list.toArray(new Kind[list.size()]);
    }

    /**
     * Merges two suggest items.
     * @param item1 The first suggest item.
     * @param item2 The second suggest item.
     * @return The merged suggest item.
     */
    public static SuggestItem merge(final SuggestItem item1, final SuggestItem item2) {
        if (!item1.getId().equals(item2.getId())) {