// Test with Unicode characters
        user = new TestFessUser("ユーザー名", new String[] {}, new String[] {}, new String[] {});
        assertEquals("ユーザー名", user.getName());
    }

    @Test
    public void test_getRoleNames() {
        // Test with multiple roles
        String[] roles = { "admin", "user", "manager" };
        FessUser user = new TestFessUser("testuser", roles, new String[] {}, new String[] {});

        assertEquals("role1", permissions[0]);
        assertEquals("role2", permissions[1]);
        assertEquals("Uuser", permissions[2]);
    }

    @Test
    public void test_getRoleNames() {
        // Test getting role names from permissions
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getRoleSearchRolePrefix() {