*   <li>{@link #getAllWordsNum()}: Returns the total number of words in the suggestion index.</li>
 *   <li>{@link #getDocumentWordsNum()}: Returns the number of document words in the suggestion index.</li>
 *   <li>{@link #getQueryWordsNum()}: Returns the number of query words in the suggestion index.</li>
 * </ul>
 *
 * <p>Protected Methods:
 * <ul>
 *   <li>{@link #createDefaultIndexer()}: Creates a default SuggestIndexer instance.</li>
 * </ul>

        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_getQueryWordsNum() {
        try {
            assertEquals(0L, suggestHelper.getQueryWordsNum());
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_deleteAllWords() {
        try {

        suggester.indexer().index(items);
        suggester.refresh();

        assertEquals(2, suggester.getAllWordsNum());
        assertEquals(1, suggester.getDocumentWordsNum());
        assertEquals(1, suggester.getQueryWordsNum());

        SuggestDeleteResponse deleteResponse = suggester.indexer().deleteDocumentWords();

        assertNotNull(deleteResponse);
        assertFalse(deleteResponse.hasError());

        assertEquals(2, suggester.getDocumentWordsNum());
        assertEquals(1, suggester.getQueryWordsNum());

        suggester.indexer().deleteAll();
        suggester.refresh();
        assertEquals(0, suggester.getAllWordsNum());
        assertEquals(0, suggester.getDocumentWordsNum());
        assertEquals(0, suggester.getQueryWordsNum());
    }

    @Test
    public void test_deleteDocumentWords() throws Exception {

        Suggester suggester = createSuggester();
        suggester.createIndexIfNothing();

        assertEquals("Empty index should have 0 query words", 0, suggester.getQueryWordsNum());
    }

    @Test
    public void test_settings_returnsNonNull() throws Exception {
        Suggester suggester = createSuggester();