@Test
public void test_canAddPermission_successfully()  {

    String path = "users/safe01";
    String token = "7QPMPIGiyDFlJkrK3jFykUqa";
    Response response = getMockResponse(HttpStatus.OK, true, "{\"keys\":[\"safe01\", \"safe02\"]}");
    when(reqProcessor.process("/sdb/list","{\"path\":\"metadata/users\"}",token)).thenReturn(response);
    boolean valid = ControllerUtil.canAddPermission("users/safe01", token);
    assertTrue(valid);
}