patch 8.1.0218: cannot add matches to another window commit https://github.com/vim/vim/commit/95e51470f10e1ddcc4b2ce53e4f7ff7aa2e58417 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 28 16:55:56 2018 +0200 patch 8.1.0218: cannot add matches to another window Problem: Cannot add matches to another window. (Qiming Zhao) Solution: Add the "window" argument to matchadd() and matchaddpos(). (closes #3260)

" Test feedkeys() function.

func Test_feedkeys_x_with_empty_string()
  new
  call feedkeys("ifoo\<Esc>")
  call assert_equal('', getline('.'))
  call feedkeys('', 'x')
  call assert_equal('foo', getline('.'))

  " check it goes back to normal mode immediately.
  call feedkeys('i', 'x')
  call assert_equal('foo', getline('.'))
  quit!
endfunc