t.Fatalf("ReadFile %s: %v", f.Name(), err)
	}

	if string(data) != msg {
		t.Fatalf("ReadFile: wrong data:\nhave %q\nwant %q", string(data), msg)
	}
}

func TestReadOnlyWriteFile(t *testing.T) {
	if Getuid() == 0 {
		t.Skipf("Root can write to read-only files anyway, so skip the read-only test.")
	}
	if runtime.GOOS == "wasip1" {
		t.Skip("no support for file permissions on " + runtime.GOOS)
	}
	t.Parallel()

            uid, javaHome, javaVersion, daemonRegistryDir, pid, idleTimeout, priority, applyInstrumentationAgent, nativeServicesMode, Joiner.on(',').join(daemonOpts));
    }

    @Override
    public String getUid() {
        return uid;
    }

    @Override
    public File getJavaHome() {
        return javaHome;
    }

    @Override
    public JavaLanguageVersion getJavaVersion() {
        return javaVersion;

                    response = new SmbComSessionSetupAndXResponse(getContext().getConfig(), null);
                    response.setExtendedSecurity(true);
                    request.setUid(getUid());
                    setUid(0);

                    try {
                        trans.send(request, response);
                    }
                    catch ( SmbAuthException sae ) {

	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetNamespace(), oldMeta.GetNamespace(), fldPath.Child("namespace"))...)
	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetUID(), oldMeta.GetUID(), fldPath.Child("uid"))...)
	allErrs = append(allErrs, ValidateImmutableField(newMeta.GetCreationTimestamp(), oldMeta.GetCreationTimestamp(), fldPath.Child("creationTimestamp"))...)

	accessor, err := Accessor(obj)
	if err != nil {
		return "", err
	}
	return accessor.GetUID(), nil
}

func (resourceAccessor) SetUID(obj runtime.Object, uid types.UID) error {
	accessor, err := Accessor(obj)
	if err != nil {
		return err
	}
	accessor.SetUID(uid)
	return nil
}

func (resourceAccessor) SelfLink(obj runtime.Object) (string, error) {

	net, _, _ := strings.Cut(network, ":")
	switch net {
	case "ip+nopriv":
	case "ip", "ip4", "ip6":
		switch runtime.GOOS {
		case "plan9":
			return false
		default:
			if os.Getuid() != 0 {
				return false
			}
		}
	case "unix", "unixgram":
		switch runtime.GOOS {
		case "android", "ios", "plan9", "windows":
			return false
		case "aix":
			return unixEnabledOnAIX
		}

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb	Getuid() (uid int)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Listen(s int, n int) (err error)

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = SYS_UGETRLIMIT
//sysnb	Getuid() (uid int)
//sysnb	InotifyInit() (fd int, err error)
//sys	Ioperm(from int, num int, on int) (err error)
//sys	Iopl(level int) (err error)

	uCopy.SetName(u.GetName())
	uCopy.SetGenerateName(u.GetGenerateName())
	uCopy.SetNamespace(u.GetNamespace())
	uCopy.SetSelfLink(u.GetSelfLink())
	uCopy.SetUID(u.GetUID())
	uCopy.SetResourceVersion(u.GetResourceVersion())
	uCopy.SetGeneration(u.GetGeneration())
	uCopy.SetCreationTimestamp(u.GetCreationTimestamp())
	uCopy.SetDeletionTimestamp(u.GetDeletionTimestamp())

//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = SYS_UGETRLIMIT
//sysnb	Getuid() (uid int)
//sys	Ioperm(from int, num int, on int) (err error)
//sys	Iopl(level int) (err error)