patch 8.0.1389: getqflist() items are missing if not set commit https://github.com/vim/vim/commit/a6d4849c711379b773529afaed640455287ac934 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 12 22:45:31 2017 +0100 patch 8.0.1389: getqflist() items are missing if not set Problem: getqflist() items are missing if not set, that makes it more difficult to handle the values. Solution: When a value is not available return zero or another invalid value. (Yegappan Lakshmanan, closes #2430)

" 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