patch 8.2.1219: symlink not followed if dirname ends in // Commit: https://github.com/vim/vim/commit/5966ea105ea86e52a734e04267956e11efffc92d Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 15 15:30:05 2020 +0200 patch 8.2.1219: symlink not followed if dirname ends in // Problem: Symlink not followed if dirname ends in //. Solution: Resolve symlink earlier. (Tom?? Janou?ek, closes https://github.com/vim/vim/issues/6454)

" 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