patch 8.2.2173: Vim9: get internal error when assigning to undefined variable Commit: https://github.com/vim/vim/commit/52c124d3303d3cc3e4504708881906d17d6d6c55 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Dec 20 21:43:35 2020 +0100 patch 8.2.2173: Vim9: get internal error when assigning to undefined variable Problem: Vim9: get internal error when assigning to undefined variable. Solution: Add error message. (closes https://github.com/vim/vim/issues/7475)

" 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

" vim: shiftwidth=2 sts=2 expandtab