patch 8.0.1024: folds lost when session file has a buffer in two windows commit https://github.com/vim/vim/commit/4bebc9a0565670b853d227f81a9a31eafdb47eed Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 30 21:07:38 2017 +0200 patch 8.0.1024: folds lost when session file has a buffer in two windows Problem: Manual folds are lost when a session file has the same buffer in two windows. (Jeansen) Solution: Use ":edit" only once. (Christian Brabandt, closes #1958)

" Test for :cd

func Test_cd_large_path()
  " This used to crash with a heap write overflow.
  call assert_fails('cd ' . repeat('x', 5000), 'E472:')
endfunc

func Test_cd_up_and_down()
  let path = getcwd()
  cd ..
  exe 'cd ' . path
  call assert_equal(path, getcwd())
endfunc