user = new TestFessUser("testuser", roles, new String[] {}, new String[] {});
        assertArrayEquals(roles, user.getRoleNames());
    }

    @Test
    public void test_getGroupNames() {
        // Test with multiple groups
        String[] groups = { "developers", "testers", "managers" };
        FessUser user = new TestFessUser("testuser", new String[] {}, groups, new String[] {});

            }
        });

        String[] roleNames = ldapUser.getRoleNames();
        assertNotNull(roleNames);
        assertEquals(0, roleNames.length);
    }

    @Test
    public void test_getGroupNames() {
        // Test getting group names from permissions
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getRoleSearchGroupPrefix() {