patch 8.0.0678: closing a window does not trigger resizing commit https://github.com/vim/vim/commit/8eeeba8c025ff844e6514c4a60cec11bf1fc1b35 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 25 22:45:39 2017 +0200 patch 8.0.0678: closing a window does not trigger resizing Problem: When 'equalalways' is set and closing a window in a separate frame, not all window sizes are adjusted. (Glacambre) Solution: Resize all windows if the new current window is not in the same frame as the closed window. (closes #1707)

" 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