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;