long tag2Count = Arrays.stream(merged.getTags()).filter(t -> t.equals("tag2")).count();
        assertEquals("tag2 should appear only once", 1, tag2Count);
    }

    @Test
    public void test_merge_allKinds() {
        String[] text1 = { "test" };
        String[][] readings1 = { { "test" } };
        SuggestItem item1 = new SuggestItem(text1, readings1, null, 0L, 0L, 1.0f, null, null, null, SuggestItem.Kind.QUERY);