view src/testdir/test_exit.vim @ 33776:9503dc55b5ed v9.0.2108

patch 9.0.2108: [security]: overflow with count for :s command Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78 Author: Christian Brabandt <cb@256bit.org> Date: Tue Nov 14 20:45:48 2023 +0100 patch 9.0.2108: [security]: overflow with count for :s command Problem: [security]: overflow with count for :s command Solution: Abort the :s command if the count is too large If the count after the :s command is larger than what fits into a (signed) long variable, abort with e_value_too_large. Adds a test with INT_MAX as count and verify it correctly fails. It seems the return value on Windows using mingw compiler wraps around, so the initial test using :s/./b/9999999999999999999999999990 doesn't fail there, since the count is wrapping around several times and finally is no longer larger than 2147483647. So let's just use 2147483647 in the test, which hopefully will always cause a failure Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 16 Nov 2023 22:15:10 +0100
parents 695b50472e85
children
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" Tests for exiting Vim.

source shared.vim
source check.vim

func Test_exiting()
  let after =<< trim [CODE]
    au QuitPre * call writefile(["QuitPre"], "Xtestout")
    au ExitPre * call writefile(["ExitPre"], "Xtestout", "a")
    quit
  [CODE]

  if RunVim([], after, '')
    call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout'))
  endif
  call delete('Xtestout')

  let after =<< trim [CODE]
    au QuitPre * call writefile(["QuitPre"], "Xtestout")
    au ExitPre * call writefile(["ExitPre"], "Xtestout", "a")
    help
    wincmd w
    quit
  [CODE]

  if RunVim([], after, '')
    call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout'))
  endif
  call delete('Xtestout')

  let after =<< trim [CODE]
    au QuitPre * call writefile(["QuitPre"], "Xtestout")
    au ExitPre * call writefile(["ExitPre"], "Xtestout", "a")
    split
    new
    qall
  [CODE]

  if RunVim([], after, '')
    call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout'))
  endif
  call delete('Xtestout')

  " ExitPre autocommand splits the window, so that it's no longer the last one.
  let after =<< trim [CODE]
    au QuitPre * call writefile(["QuitPre"], "Xtestout", "a")
    au ExitPre * call writefile(["ExitPre"], "Xtestout", "a")
    augroup nasty
      au ExitPre * split
    augroup END
    quit
    augroup nasty
      au! ExitPre
    augroup END
    quit
  [CODE]

  if RunVim([], after, '')
    call assert_equal(['QuitPre', 'ExitPre', 'QuitPre', 'ExitPre'],
	  \ readfile('Xtestout'))
  endif
  call delete('Xtestout')

  " ExitPre autocommand splits and closes the window, so that there is still
  " one window but it's a different one.
  let after =<< trim [CODE]
    au QuitPre * call writefile(["QuitPre"], "Xtestout", "a")
    au ExitPre * call writefile(["ExitPre"], "Xtestout", "a")
    augroup nasty
      au ExitPre * split | only
    augroup END
    quit
    augroup nasty
      au! ExitPre
    augroup END
    quit
  [CODE]

  if RunVim([], after, '')
    call assert_equal(['QuitPre', 'ExitPre', 'QuitPre', 'ExitPre'],
	  \ readfile('Xtestout'))
  endif
  call delete('Xtestout')

  " ExitPre autocommand also executed on :wqall
  let after =<< trim [CODE]
    au QuitPre * call writefile(["QuitPre"], "Xtestout", "a")
    au ExitPre * call writefile(["ExitPre"], "Xtestout", "a")
    wqall
  [CODE]

  if RunVim([], after, '')
    call assert_equal(['QuitPre', 'ExitPre'], readfile('Xtestout'))
  endif
  call delete('Xtestout')
endfunc

" Test for getting the Vim exit code from v:exiting
func Test_exit_code()
  call assert_equal(v:null, v:exiting)

  let before =<< trim [CODE]
    au QuitPre * call writefile(['qp = ' .. v:exiting], 'Xtestout', 'a')
    au ExitPre * call writefile(['ep = ' .. v:exiting], 'Xtestout', 'a')
    au VimLeavePre * call writefile(['lp = ' .. v:exiting], 'Xtestout', 'a')
    au VimLeave * call writefile(['l = ' .. v:exiting], 'Xtestout', 'a')
  [CODE]

  if RunVim(before, ['quit'], '')
    call assert_equal(['qp = v:null', 'ep = v:null', 'lp = 0', 'l = 0'], readfile('Xtestout'))
  endif
  call delete('Xtestout')

  if RunVim(before, ['cquit'], '')
    call assert_equal(['lp = 1', 'l = 1'], readfile('Xtestout'))
  endif
  call delete('Xtestout')

  if RunVim(before, ['cquit 4'], '')
    call assert_equal(['lp = 4', 'l = 4'], readfile('Xtestout'))
  endif
  call delete('Xtestout')
endfunc

func Test_exit_error_reading_input()
  CheckNotGui
  CheckNotMSWindows
  " The early exit causes memory not to be freed somehow
  CheckNotAsan
  CheckNotValgrind

  call writefile([":au VimLeave * call writefile(['l = ' .. v:exiting], 'Xtestout')", ":tabnew", "q:"], 'Xscript', 'bD')

  if RunVim([], [], '<Xscript')
    call assert_equal(1, v:shell_error)
    call assert_equal(['l = 1'], readfile('Xtestout'))
  endif
  call delete('Xtestout')
endfun


" vim: shiftwidth=2 sts=2 expandtab