### Question:
ActivityConfiguration { protected ActivityConfiguration() { } protected  ActivityConfiguration(); GeneralMessageCollector getGeneralMessageCollector(); @Inject void setGeneralMessageCollector(GeneralMessageCollector generalMessageCollector); NodeManagerCollector getNodeManagerCollector(); @Inject void setNodeManagerCollector(NodeManagerCollector nodeManagerCollector); UserManagerCollector getUserManagerCollector(); @Inject void setUserManagerCollector(UserManagerCollector userManagerCollector); FileManagerCollector getFileManagerCollector(); @Inject void setFileManagerCollector(FileManagerCollector fileManagerCollector);  }### Answer:
@Test public void testActivityConfiguration() { assertNotNull(activity); assertNull(activity.getGeneralMessageCollector()); assertNull(activity.getNodeManagerCollector()); assertNull(activity.getUserManagerCollector()); assertNull(activity.getFileManagerCollector()); }