### Question:
PolicyKeysUtil { public static List<ResourceKey> getAllResourceKeyList() { return rsKeys; }  static List<PolicyKey> getAllPolicyKeyList(); static List<ResourceKey> getAllResourceKeyList(); static List<OperationKey> getAllOperationKeyList(); static List<SubjectKey> getAllSubjectKeyList(); static List<SubjectGroupKey> getAllSubjectGroupKeyList();  }### Answer:
@Test public void testGetAllResourcesKeyList() { assertNotNull(PolicyKeysUtil.getAllResourceKeyList()); assertEquals(3, PolicyKeysUtil.getAllResourceKeyList().size()); }