操作系统。Stat:permission denied=>error(syscall.Errno)EACCES(13)

我正在一个文件夹中创建一个目录

// The directory which is going to be created next to unit test executable.
const DirName string = "test-files"

正在创建目录:

    // Create the directory if doesn't already exist.
    err := os.MkdirAll(DirName, os.ModeDir)
    if err != nil {
        return err
    }

    // Compose a sample file path to double-check its existence.
    pth := DirName + string(os.PathSeparator) + "samplefile.txt"


    exists, err := doesExist(pth)
    if err != nil {
        return err
    }

以及检查文件是否存在:

// Does file exist?
func doesExist(pth string) (bool, error) {

    // Check file existence
    // https://stackoverflow.com/a/10510718/3405291
    if _, err := os.Stat(pth); err != nil {
        if os.IsNotExist(err) {
            return false, nil
        } else {
            return true, err
        }
    }

    // Above conditions are skipped,
    // therefore file exists.
    return true, nil
}

上述代码返回此错误:

错误(syscall.Errno)EACCES(13)

我可以再次检查目录是否已实际创建。但是权限是有限的 d---------

> ls -lh
d--------- 2 m3 users    6 Dec 23 20:30 test-files

如何创建具有相应权限的目录?