patch 8.0.0525: completion for user command argument not tested commit https://github.com/vim/vim/commit/a33ddbbd04ca9b81cba6114708f42b8e26293b99 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 29 21:30:04 2017 +0200 patch 8.0.0525: completion for user command argument not tested Solution: Completion for user command argument not tested. Problem: Add a test.

func Test_yank_put_clipboard()
  new
  call setline(1, ['a', 'b', 'c'])
  set clipboard=unnamed
  g/^/normal yyp
  call assert_equal(['a', 'a', 'b', 'b', 'c', 'c'], getline(1, 6))

  set clipboard&
  bwipe!
endfunc