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view src/testdir/test_expr_utf8.vim @ 33130:3e4c08a8d637 v9.0.1847

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patch 9.0.1847: [security] potential oob write in do_addsub() Commit: https://github.com/vim/vim/commit/889f6af37164775192e33b233a90e86fd3df0f57 Author: Christian Brabandt <cb@256bit.org> Date: Sat Sep 2 19:43:33 2023 +0200 patch 9.0.1847: [security] potential oob write in do_addsub() Problem: potential oob write in do_addsub() Solution: don't overflow buf2, check size in for loop() Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Sat, 02 Sep 2023 20:00:02 +0200
parents 512f48dc7100
children
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" Tests for expressions using utf-8.

func Test_strgetchar()
  call assert_equal(char2nr('á'), strgetchar('áxb', 0))
  call assert_equal(char2nr('x'), strgetchar('áxb', 1))

  call assert_equal(char2nr('a'), strgetchar('àxb', 0))
  call assert_equal(char2nr('̀'), strgetchar('àxb', 1))
  call assert_equal(char2nr('x'), strgetchar('àxb', 2))

  call assert_equal(char2nr('あ'), strgetchar('あaい', 0))
  call assert_equal(char2nr('a'), strgetchar('あaい', 1))
  call assert_equal(char2nr('い'), strgetchar('あaい', 2))
endfunc

func Test_strcharpart()
  call assert_equal('áxb', strcharpart('áxb', 0))
  call assert_equal('á', strcharpart('áxb', 0, 1))
  call assert_equal('x', strcharpart('áxb', 1, 1))

  call assert_equal('いうeお', strcharpart('あいうeお', 1))
  call assert_equal('い', strcharpart('あいうeお', 1, 1))
  call assert_equal('いう', strcharpart('あいうeお', 1, 2))
  call assert_equal('いうe', strcharpart('あいうeお', 1, 3))
  call assert_equal('いうeお', strcharpart('あいうeお', 1, 4))
  call assert_equal('eお', strcharpart('あいうeお', 3))
  call assert_equal('e', strcharpart('あいうeお', 3, 1))

  call assert_equal('あ', strcharpart('あいうeお', -3, 4))

  call assert_equal('a', strcharpart('àxb', 0, 1))
  call assert_equal('̀', strcharpart('àxb', 1, 1))
  call assert_equal('x', strcharpart('àxb', 2, 1))


  call assert_equal('a', strcharpart('àxb', 0, 1, 0))
  call assert_equal('à', strcharpart('àxb', 0, 1, 1))
  call assert_equal('x', strcharpart('àxb', 1, 1, 1))

  call assert_fails("let v = strcharpart('abc', 0, 0, [])", 'E745:')
  call assert_fails("let v = strcharpart('abc', 0, 0, 2)", 'E1023:')
endfunc

" vim: shiftwidth=2 sts=2 expandtab