}
@Test
public void testEmptyQuery() throws Exception {
// Empty query.
ConferenceQueryForm conferenceQueryForm = new ConferenceQueryForm();
List<Conference> conferences = conferenceApi.queryConferences(conferenceQueryForm);
assertEquals(3, conferences.size());
assertTrue("The result should contain conference1.", conferences.contains(conference1));
assertTrue("The result should contain conference2.", conferences.contains(conference2));
assertTrue("The result should contain conference3.", conferences.contains(conference3));