assertTrue(items.size() > 0);
        // Languages should be empty array when no lang field
        assertEquals(0, items.get(0).getLanguages().length);
    }

    @Test
    public void test_parseDocument_tagsAsStringArray() throws Exception {
        Map<String, Object> document = new HashMap<>();
        document.put("content", "test");
        document.put("label", new String[] { "tag1", "tag2" });