commit https://github.com/vim/vim/commit/fa8b2e173dd5f6c4a5cfd326abdcf68b8eebf90d Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 26 22:19:27 2016 +0100 patch 7.4.1661 Problem: No test for special characters in channel eval command. Solution: Testing sending and receiving text with special characters.

" Test for joining lines.

func Test_join_with_count()
  new
  call setline(1, ['one', 'two', 'three', 'four'])
  normal J
  call assert_equal('one two', getline(1))
  %del
  call setline(1, ['one', 'two', 'three', 'four'])
  normal 10J
  call assert_equal('one two three four', getline(1))
  quit!
endfunc