patch 8.1.0449: when 'rnu' is set folded lines are not displayed correctly commit https://github.com/vim/vim/commit/7701f308565fdc7b5096a6597d9c3b63de0bbcec Author: Bram Moolenaar <Bram@vim.org> Date: Tue Oct 2 21:20:32 2018 +0200 patch 8.1.0449: when 'rnu' is set folded lines are not displayed correctly Problem: When 'rnu' is set folded lines are not displayed correctly. (Vitaly Yashin) Solution: When only redrawing line numbers do draw folded lines. (closes #3484)

" Test 'autochdir' behavior

if !exists("+autochdir")
  finish
endif

func Test_set_filename()
  let cwd = getcwd()
  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
  exe 'cd ' . cwd
  call delete('samples/Xtest')
endfunc