* and the time taken to complete the operation.
 */
public class SuggestDeleteResponse {
    /** List of errors that occurred during the operation. */
    protected final List<Throwable> errors = new ArrayList<>();
    /** Time taken for the operation in milliseconds. */
    protected final long took;

    /**
     * Constructor for SuggestDeleteResponse.
     * @param errors A list of Throwables representing errors.

        SuggestDeleteResponse response = new SuggestDeleteResponse(errors, 100);

        assertNotNull(response);
        assertFalse(response.hasError());
        assertEquals(0, response.getErrors().size());
    }

    @Test
    public void test_getTook() throws Exception {
        SuggestDeleteResponse response = new SuggestDeleteResponse(null, 250);

     *
     * @param index The index name
     * @param badWord The bad word to add
     * @param apply Whether to apply the change immediately (delete matching items)
     * @return The SuggestDeleteResponse
     */
    public SuggestDeleteResponse addBadWord(final String index, final String badWord, final boolean apply) {
        final String normalized = normalizer.normalize(badWord, "");
        settings.badword().add(normalized);

        return new SuggestDeleteResponse(result.getFailures(), System.currentTimeMillis() - start);
    }

    /**
     * Deletes suggest items by a query string.
     *
     * @param index The index name
     * @param queryString The query string
     * @return The SuggestDeleteResponse
     */
    public SuggestDeleteResponse deleteByQuery(final String index, final String queryString) {

                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

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

        SuggestDeleteResponse deleteResponse = suggester.indexer().delete(item.getId());

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

    @Test

     * @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse deleteByQuery(final QueryBuilder queryBuilder) {
        ensureOperations();
        return deletionOps.deleteByQuery(index, queryBuilder);
    }

    /**
     * Deletes all suggest items.
     * @return The SuggestDeleteResponse.
     */
    public SuggestDeleteResponse deleteAll() {
        ensureOperations();

    @Test
    public void test_deleteAllOnEmptyIndex() throws Exception {
        SuggestDeleteResponse response = suggester.indexer().deleteAll();

        assertNotNull(response);
        assertFalse(response.hasError());
    }

    @Test
    public void test_deleteDocumentWordsOnEmptyIndex() throws Exception {
        SuggestDeleteResponse response = suggester.indexer().deleteDocumentWords();

        assertNotNull(response);

import org.codelibs.fess.suggest.constants.FieldNames;
import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.fess.suggest.exception.SuggestSettingsException;
import org.codelibs.fess.suggest.index.SuggestDeleteResponse;
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.codelibs.fess.suggest.settings.SuggestSettingsBuilder;