view src/testdir/test_undolevels.vim @ 7460:1420ccc9f610 v7.4.1033

commit https://github.com/vim/vim/commit/ee2739787f1e996739541bb60e6003b892497e03 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 2 21:11:51 2016 +0100 patch 7.4.1033 Problem: Memory use on MS-Windows is very conservative. Solution: Use the global memory status to estimate amount of memory. (Mike Williams)
author Christian Brabandt <cb@256bit.org>
date Sat, 02 Jan 2016 21:15:04 +0100
parents b5e9810b389d
children 17bbbca531be
line wrap: on
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" Tests for 'undolevels'

set nocompatible viminfo+=nviminfo

func FillBuffer()
  for i in range(1,13)
    put=i
    " Set 'undolevels' to split undo. 
    exe "setg ul=" . &g:ul
  endfor
endfunc

func Test_global_local_undolevels()
  new one
  set undolevels=5
  call FillBuffer()
  " will only undo the last 5 changes, end up with 13 - (5 + 1) = 7 lines
  earlier 10
  call assert_equal(5, &g:undolevels)
  call assert_equal(-123456, &l:undolevels)
  call assert_equal('7', getline('$'))

  new two
  setlocal undolevels=2
  call FillBuffer()
  " will only undo the last 2 changes, end up with 13 - (2 + 1) = 10 lines
  earlier 10
  call assert_equal(5, &g:undolevels)
  call assert_equal(2, &l:undolevels)
  call assert_equal('10', getline('$'))

  setlocal ul=10
  call assert_equal(5, &g:undolevels)
  call assert_equal(10, &l:undolevels)

  " Setting local value in "two" must not change local value in "one"
  wincmd p
  call assert_equal(5, &g:undolevels)
  call assert_equal(-123456, &l:undolevels)

  new three
  setglobal ul=50
  call assert_equal(50, &g:undolevels)
  call assert_equal(-123456, &l:undolevels)

endfunc