acl_cmp_np
int acl_cmp_np(acl_t _acl1, acl_t _acl2);
ATF_CHECK_EQ(0, acl_cmp_np(acl1, empty_acl));
ATF_CHECK_EQ(1, acl_cmp_np(empty_acl, acl1));
ATF_CHECK_EQ(0, acl_cmp_np(acl1, acl2));
ATF_CHECK_EQ(1, acl_cmp_np(acl1, acl2));
ATF_CHECK_EQ(1, acl_cmp_np(acl1, acl2));
ATF_CHECK_ERRNO(EINVAL, acl_cmp_np(NULL, NULL));
ATF_CHECK_ERRNO(EINVAL, acl_cmp_np(acl1, NULL));
ATF_CHECK_ERRNO(EINVAL, acl_cmp_np(NULL, acl1));