@Before
    public void before() throws Exception {
        runner.admin().indices().prepareDelete("_all").execute().actionGet();
        runner.refresh();
        suggester = Suggester.builder().build(client, "ScrollTest");
        suggester.createIndexIfNothing();
    }

    @Test
    public void testScrollSearch_emptyResults() {
        // Create index without any documents
        createTestIndex();