Mercurial > vim
view src/testdir/test_wordcount.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 | 08940efa6b4e |
children |
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" Test for wordcount() function func Test_wordcount() let save_enc = &enc set encoding=utf-8 set selection=inclusive fileformat=unix fileformats=unix new " Test 1: empty window call assert_equal({'chars': 0, 'cursor_chars': 0, 'words': 0, 'cursor_words': 0, \ 'bytes': 0, 'cursor_bytes': 0}, wordcount()) " Test 2: some words, cursor at start call append(1, 'one two three') call cursor([1, 1, 0]) call assert_equal({'chars': 15, 'cursor_chars': 1, 'words': 3, 'cursor_words': 0, \ 'bytes': 15, 'cursor_bytes': 1}, wordcount()) " Test 3: some words, cursor at end %d _ call append(1, 'one two three') call cursor([2, 99, 0]) call assert_equal({'chars': 15, 'cursor_chars': 14, 'words': 3, 'cursor_words': 3, \ 'bytes': 15, 'cursor_bytes': 14}, wordcount()) " Test 4: some words, cursor at end, ve=all set ve=all %d _ call append(1, 'one two three') call cursor([2, 99, 0]) call assert_equal({'chars': 15, 'cursor_chars': 15, 'words': 3, 'cursor_words': 3, \ 'bytes': 15, 'cursor_bytes': 15}, wordcount()) set ve= " Test 5: several lines with words %d _ call append(1, ['one two three', 'one two three', 'one two three']) call cursor([4, 99, 0]) call assert_equal({'chars': 43, 'cursor_chars': 42, 'words': 9, 'cursor_words': 9, \ 'bytes': 43, 'cursor_bytes': 42}, wordcount()) " Test 6: one line with BOM set %d _ call append(1, 'one two three') set bomb w! Xtest call cursor([2, 99, 0]) call assert_equal({'chars': 15, 'cursor_chars': 14, 'words': 3, 'cursor_words': 3, \ 'bytes': 18, 'cursor_bytes': 14}, wordcount()) set nobomb w! call delete('Xtest') " Test 7: one line with multibyte words %d _ call append(1, ['Äne M¤ne Müh']) call cursor([2, 99, 0]) call assert_equal({'chars': 14, 'cursor_chars': 13, 'words': 3, 'cursor_words': 3, \ 'bytes': 17, 'cursor_bytes': 16}, wordcount()) " Test 8: several lines with multibyte words %d _ call append(1, ['Äne M¤ne Müh', 'und raus bist dü!']) call cursor([3, 99, 0]) call assert_equal({'chars': 32, 'cursor_chars': 31, 'words': 7, 'cursor_words': 7, \ 'bytes': 36, 'cursor_bytes': 35}, wordcount()) " Visual map to capture wordcount() in visual mode vnoremap <expr> <F2> execute("let g:visual_stat = wordcount()") " Test 9: visual mode, complete buffer let g:visual_stat = {} %d _ call append(1, ['Äne M¤ne Müh', 'und raus bist dü!']) " start visual mode and select the complete buffer 0 exe "normal V2j\<F2>y" call assert_equal({'chars': 32, 'words': 7, 'bytes': 36, 'visual_chars': 32, \ 'visual_words': 7, 'visual_bytes': 36}, g:visual_stat) " Test 10: visual mode (empty) %d _ call append(1, ['Äne M¤ne Müh', 'und raus bist dü!']) " start visual mode and select the complete buffer 0 exe "normal v$\<F2>y" call assert_equal({'chars': 32, 'words': 7, 'bytes': 36, 'visual_chars': 1, \ 'visual_words': 0, 'visual_bytes': 1}, g:visual_stat) " Test 11: visual mode, single line %d _ call append(1, ['Äne M¤ne Müh', 'und raus bist dü!']) " start visual mode and select the complete buffer 2 exe "normal 0v$\<F2>y" call assert_equal({'chars': 32, 'words': 7, 'bytes': 36, 'visual_chars': 13, \ 'visual_words': 3, 'visual_bytes': 16}, g:visual_stat) set selection& fileformat& fileformats& let &enc = save_enc enew! close endfunc " vim: shiftwidth=2 sts=2 expandtab