public void testQueryByAssignee() {
TaskQuery query = taskService.createTaskQuery().taskAssignee("gonzo");
assertEquals(1, query.count());
assertEquals(1, query.list().size());
assertNotNull(query.singleResult());
query = taskService.createTaskQuery().taskAssignee("kermit");
assertEquals(0, query.count());
assertEquals(0, query.list().size());
assertNull(query.singleResult());