Mercurial > vim
view src/testdir/test_move.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 | 984969b81d63 |
children |
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" Test the ":move" command. source check.vim source screendump.vim func Test_move() enew! call append(0, ['line 1', 'line 2', 'line 3']) g /^$/ delete _ set nomodified move . call assert_equal(['line 1', 'line 2', 'line 3'], getline(1, 3)) call assert_false(&modified) 1,2move 0 call assert_equal(['line 1', 'line 2', 'line 3'], getline(1, 3)) call assert_false(&modified) 1,3move 3 call assert_equal(['line 1', 'line 2', 'line 3'], getline(1, 3)) call assert_false(&modified) 1move 2 call assert_equal(['line 2', 'line 1', 'line 3'], getline(1, 3)) call assert_true(&modified) set nomodified 3move 0 call assert_equal(['line 3', 'line 2', 'line 1'], getline(1, 3)) call assert_true(&modified) set nomodified 2,3move 0 call assert_equal(['line 2', 'line 1', 'line 3'], getline(1, 3)) call assert_true(&modified) set nomodified call assert_fails('1,2move 1', 'E134:') call assert_fails('2,3move 2', 'E134:') call assert_fails("move -100", 'E16:') call assert_fails("move +100", 'E16:') call assert_fails('move', 'E16:') call assert_fails("move 'r", 'E20:') %bwipeout! endfunc func Test_move_undo() CheckRunVimInTerminal let lines =<< trim END call setline(1, ['First', 'Second', 'Third', 'Fourth']) END call writefile(lines, 'Xtest_move_undo.vim', 'D') let buf = RunVimInTerminal('-S Xtest_move_undo.vim', #{rows: 10, cols: 60, statusoff: 2}) call term_sendkeys(buf, "gg:move +1\<CR>") call VerifyScreenDump(buf, 'Test_move_undo_1', {}) " here the display would show the last few lines scrolled down call term_sendkeys(buf, "u") call term_sendkeys(buf, ":\<Esc>") call VerifyScreenDump(buf, 'Test_move_undo_2', {}) call StopVimInTerminal(buf) endfunc " vim: shiftwidth=2 sts=2 expandtab