    @Test
    public void searchAuthor() throws ParseException {

        Talk talk1 = newAuthorTalk("Florian Hopf");
        Talk talk2 = newAuthorTalk("Florian");
        indexer.index(talk1, talk2);
        List<Result> documents = searcher.search("speaker:Florian");
        assertEquals(2, documents.size());
        documents = searcher.search("speaker:\"Florian Hopf\"");
        assertEquals(1, documents.size());
    }