assertFalse(user.refresh());

        user = new TestFessUser("", new String[] {}, new String[] {}, new String[] {});
        assertFalse(user.refresh());
    }

    @Test
    public void test_refresh_custom() {
        // Test custom implementation that returns true
        TestRefreshableFessUser user = new TestRefreshableFessUser("testuser", true);
        assertTrue(user.refresh());