manager.saveActivity("userA", activity1);
activity1.setUserId("userA");
activity1.setId("18");
activity1.setAppId("7");
activity1.setTitle("Adding Gadget 3 ");
manager.saveActivity("userA", activity1);
Activity[] activities = manager.getActivities(new String[]{"userA"}, "self", "7", null, new FilterOptionsImpl());
assertEquals(3, activities.length);
Set<String> activityIds = new HashSet<String>();
activityIds.add("18");