commit https://github.com/vim/vim/commit/b5ae48e9ffd3b8eb6ca4057de11f1bddcde8ce6f Author: Bram Moolenaar <Bram@vim.org> Date: Fri Aug 12 22:23:25 2016 +0200 patch 7.4.2204 Problem: It is not easy to get information about buffers, windows and tabpages. Solution: Add getbufinfo(), getwininfo() and gettabinfo(). (Yegappan Lakshmanan)

" Tests for Visual mode.  Uses double-wide character.
if !has('multi_byte')
  finish
endif

if !has('visual')
  finish
endif

func Test_block_shift_multibyte()
  split
  call setline(1, ['xヹxxx', 'ヹxxx'])
  exe "normal 1G0l\<C-V>jl>"
  call assert_equal('x	 ヹxxx', getline(1))
  call assert_equal('	ヹxxx', getline(2))
  q!
endfunc