patch 8.0.0537: illegal memory access with :z and large count commit https://github.com/vim/vim/commit/fa0ad0bb0b4255e64ebcf9269d60a942e0ae7ff9 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 2 15:45:17 2017 +0200 patch 8.0.0537: illegal memory access with :z and large count Problem: Illegal memory access with :z and large count. Solution: Check for number overflow, using long instead of int. (Dominique Pelle, closes #1612)

" Tests for Lua.
" TODO: move tests from test85.in here.

if !has('lua')
  finish
endif

func Test_luado()
  new
  call setline(1, ['one', 'two', 'three'])
  luado vim.command("%d_")
  bwipe!

  " Check switching to another buffer does not trigger ml_get error.
  new
  let wincount = winnr('$')
  call setline(1, ['one', 'two', 'three'])
  luado vim.command("new")
  call assert_equal(wincount + 1, winnr('$'))
  bwipe!
  bwipe!
endfunc