returnedFilter = filterService.getFilter(filter.getId());
assertNotNull(returnedFilter);
// create test Task
Task task = taskService.newTask("test");
taskService.saveTask(task);
Task result = filterService.singleResult(filter.getId());
assertNotNull(result);
assertEquals(task.getId(), result.getId());
List<Task> resultList = filterService.list(filter.getId());
assertNotNull(resultList);
assertEquals(1, resultList.size());
assertEquals(task.getId(), resultList.get(0).getId());