patch 8.2.1674: Vim9: internal error when using variable that was not set Commit: https://github.com/vim/vim/commit/f0afd9e18227d3459c888584d0658a1837d2aaf8 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 13 18:57:47 2020 +0200 patch 8.2.1674: Vim9: internal error when using variable that was not set Problem: Vim9: internal error when using variable that was not set. Solution: Give a meaningful error. (closes https://github.com/vim/vim/issues/6937)

" Tests for :undo

func Test_ex_undo()
  new ex-undo
  setlocal ul=10
  exe "normal ione\n\<Esc>"
  setlocal ul=10
  exe "normal itwo\n\<Esc>"
  setlocal ul=10
  exe "normal ithree\n\<Esc>"
  call assert_equal(4, line('$'))
  undo
  call assert_equal(3, line('$'))
  undo 1
  call assert_equal(2, line('$'))
  undo 0
  call assert_equal(1, line('$'))
  quit!
endfunc

" vim: shiftwidth=2 sts=2 expandtab