" Test getting and setting file permissions.

func Test_file_perm()
  call assert_equal('', getfperm('Xtest'))
  call assert_equal(0, setfperm('Xtest', 'r--------'))

  call writefile(['one'], 'Xtest')
  call assert_true(len(getfperm('Xtest')) == 9)

  call assert_equal(1, setfperm('Xtest', 'rwx------'))
  call assert_equal('rwx------', getfperm('Xtest'))

  call assert_equal(1, setfperm('Xtest', 'r--r--r--'))
  call assert_equal('r--r--r--', getfperm('Xtest'))

  call assert_fails("setfperm('Xtest', '---')")

  call assert_equal(1, setfperm('Xtest', 'rwx------'))
  call delete('Xtest')
endfunc