Mercurial > vim
view src/testdir/test_comments.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 | 55b3849ded11 |
children | 1fa23ccd6d9a |
line wrap: on
line source
" Tests for the various flags in the 'comments' option " Test for the 'n' flag in 'comments' func Test_comment_nested() new setlocal comments=n:> fo+=ro exe "normal i> B\nD\<C-C>ggOA\<C-C>joC\<C-C>Go\<BS>>>> F\nH" exe "normal 5GOE\<C-C>6GoG" let expected =<< trim END > A > B > C > D >>>> E >>>> F >>>> G >>>> H END call assert_equal(expected, getline(1, '$')) close! endfunc " Test for the 'b' flag in 'comments' func Test_comment_blank() new setlocal comments=b:* fo+=ro exe "normal i* E\nF\n\<BS>G\nH\<C-C>ggOC\<C-C>O\<BS>B\<C-C>OA\<C-C>2joD" let expected =<< trim END A *B * C * D * E * F *G H END call assert_equal(expected, getline(1, '$')) close! endfunc " Test for the 'f' flag in 'comments' (only the first line has a comment " string) func Test_comment_firstline() new setlocal comments=f:- fo+=ro exe "normal i- B\nD\<C-C>ggoC\<C-C>ggOA\<C-C>" call assert_equal(['A', '- B', ' C', ' D'], getline(1, '$')) %d setlocal comments=:- exe "normal i- B\nD\<C-C>ggoC\<C-C>ggOA\<C-C>" call assert_equal(['- A', '- B', '- C', '- D'], getline(1, '$')) close! endfunc " Test for the 's', 'm' and 'e' flags in 'comments' " Test for automatically adding comment leaders in insert mode func Test_comment_threepiece() new setlocal expandtab call setline(1, ["\t/*"]) setlocal formatoptions=croql call cursor(1, 3) call feedkeys("A\<cr>\<cr>/", 'tnix') call assert_equal(["\t/*", " *", " */"], getline(1, '$')) " If a comment ends in a single line, then don't add it in the next line %d call setline(1, '/* line1 */') call feedkeys("A\<CR>next line", 'xt') call assert_equal(['/* line1 */', 'next line'], getline(1, '$')) %d " Copy the trailing indentation from the leader comment to a new line setlocal autoindent noexpandtab call feedkeys("a\t/*\tone\ntwo\n/", 'xt') call assert_equal(["\t/*\tone", "\t *\ttwo", "\t */"], getline(1, '$')) close! endfunc " Test for the 'r' flag in 'comments' (right align comment) func Test_comment_rightalign() new setlocal comments=sr:/***,m:**,ex-2:******/ fo+=ro exe "normal i=\<C-C>o\t /***\nD\n/" exe "normal 2GOA\<C-C>joB\<C-C>jOC\<C-C>joE\<C-C>GOF\<C-C>joG" let expected =<< trim END = A /*** ** B ** C ** D ** E ** F ******/ G END call assert_equal(expected, getline(1, '$')) close! endfunc " Test for the 'O' flag in 'comments' func Test_comment_O() new setlocal comments=Ob:* fo+=ro exe "normal i* B\nD\<C-C>kOA\<C-C>joC" let expected =<< trim END A * B * C * D END call assert_equal(expected, getline(1, '$')) close! endfunc " Test for using a multibyte character as a comment leader func Test_comment_multibyte_leader() new let t =<< trim END { X Xa XaY XY XYZ X Y X YZ XX XXa XXY } END call setline(1, t) call cursor(2, 1) set tw=2 fo=cqm comments=n:X exe "normal gqgqjgqgqjgqgqjgqgqjgqgqjgqgqjgqgqjgqgqjgqgqjgqgq" let t =<< trim END X Xa XaY XY XYZ X Y X YZ XX XXa XXY END exe "normal o\n" . join(t, "\n") let expected =<< trim END { X Xa Xa XY XY XY XZ X Y X Y X Z XX XXa XXY X Xa Xa XY XY XY XZ X Y X Y X Z XX XXa XXY } END call assert_equal(expected, getline(1, '$')) set tw& fo& comments& close! endfunc " Test for a space character in 'comments' setting func Test_comment_space() new setlocal comments=b:\ > fo+=ro exe "normal i> B\nD\<C-C>ggOA\<C-C>joC" exe "normal Go > F\nH\<C-C>kOE\<C-C>joG" let expected =<< trim END A > B C D > E > F > G > H END call assert_equal(expected, getline(1, '$')) close! endfunc " Test for formatting lines with and without comments func Test_comment_format_lines() new call setline(1, ['one', '/* two */', 'three']) normal gggqG call assert_equal(['one', '/* two */', 'three'], getline(1, '$')) close! endfunc " Test for using 'a' in 'formatoptions' with comments func Test_comment_autoformat() new setlocal formatoptions+=a call feedkeys("a- one\n- two\n", 'xt') call assert_equal(['- one', '- two', ''], getline(1, '$')) %d call feedkeys("a\none\n", 'xt') call assert_equal(['', 'one', ''], getline(1, '$')) setlocal formatoptions+=aw %d call feedkeys("aone \ntwo\n", 'xt') call assert_equal(['one two', ''], getline(1, '$')) %d call feedkeys("aone\ntwo\n", 'xt') call assert_equal(['one', 'two', ''], getline(1, '$')) close! endfunc " Test for joining lines with comments ('j' flag in 'formatoptions') func Test_comment_join_lines_fo_j() new setlocal fo+=j comments=:// call setline(1, ['i++; // comment1', ' // comment2']) normal J call assert_equal('i++; // comment1 comment2', getline(1)) setlocal fo-=j call setline(1, ['i++; // comment1', ' // comment2']) normal J call assert_equal('i++; // comment1 // comment2', getline(1)) " Test with nested comments setlocal fo+=j comments=n:>,n:) call setline(1, ['i++; > ) > ) comment1', ' > ) comment2']) normal J call assert_equal('i++; > ) > ) comment1 comment2', getline(1)) close! endfunc " Test for formatting lines where only the first line has a comment. func Test_comment_format_firstline_comment() new setlocal formatoptions=tcq call setline(1, ['- one two', 'three']) normal gggqG call assert_equal(['- one two three'], getline(1, '$')) %d call setline(1, ['- one', '- two']) normal gggqG call assert_equal(['- one', '- two'], getline(1, '$')) close! endfunc " vim: shiftwidth=2 sts=2 expandtab