assertEquals(2, roles.length);
assertEquals("Joe", roles[0]);
assertEquals("Joe-1", roles[1]);
assertEquals("get Joe", service.getAuthentication("Joe"));
Authenticate au = new Authenticate();
au.setSid("ffang");
au.setUid("ffang");
assertTrue(service.authenticate(au));
au.setUid("ffang1");
assertFalse(service.authenticate(au));
}