patch 8.0.1172: when E734 is given option is still set commit https://github.com/vim/vim/commit/2a6a6c3014e728cd01c750b0f60484d4eaf22a8c Author: Bram Moolenaar <Bram@vim.org> Date: Mon Oct 2 19:29:48 2017 +0200 patch 8.0.1172: when E734 is given option is still set Problem: When E734 is given option is still set. Solution: Assign NULL to "s". (Christian Brabandt)

" Test 'autochdir' behavior

if !exists("+autochdir")
  finish
endif

func Test_set_filename()
  call test_autochdir()
  set acd
  new
  w samples/Xtest
  call assert_equal("Xtest", expand('%'))
  call assert_equal("samples", substitute(getcwd(), '.*/\(\k*\)', '\1', ''))
  bwipe!
  set noacd
  call delete('samples/Xtest')
endfunc