patch 9.0.0172: trying to allocate zero bytes Commit: https://github.com/vim/vim/commit/1024690c015921b0a458172bc368133f63af1b89 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 8 17:08:05 2022 +0100 patch 9.0.0172: trying to allocate zero bytes Problem: Trying to allocate zero bytes. Solution: Do not allocate the proptype array when there are none. (closes #10867)

" 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