Mercurial > vim
view src/testdir/test_timers.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 |
line wrap: on
line source
" Test for timers source check.vim CheckFeature timers source screendump.vim source shared.vim source term_util.vim func SetUp() " The tests here use timers, thus are sensitive to timing. let g:test_is_flaky = 1 endfunc func MyHandler(timer) let g:val += 1 endfunc func MyHandlerWithLists(lists, timer) let x = string(a:lists) endfunc func Test_timer_oneshot() let g:val = 0 let timer = timer_start(50, 'MyHandler') let slept = WaitFor('g:val == 1') call assert_equal(1, g:val) if has('mac') " Mac on Travis can be very slow. let limit = 180 else let limit = 100 endif if has('reltime') call assert_inrange(49, limit, slept) else call assert_inrange(20, limit, slept) endif endfunc func Test_timer_repeat_three() let g:val = 0 let timer = timer_start(50, 'MyHandler', {'repeat': 3}) let slept = WaitFor('g:val == 3') call assert_equal(3, g:val) if has('reltime') if has('mac') " Mac on Travis can be slow. call assert_inrange(149, 400, slept) else call assert_inrange(149, 250, slept) endif else call assert_inrange(80, 200, slept) endif endfunc func Test_timer_repeat_many() let g:val = 0 let timer = timer_start(50, 'MyHandler', {'repeat': -1}) sleep 200m call timer_stop(timer) " Mac on Travis can be slow. if has('mac') call assert_inrange(1, 5, g:val) else call assert_inrange(2, 5, g:val) endif endfunc func Test_timer_with_partial_callback() let g:val = 0 let meow = {'one': 1} function meow.bite(...) let g:val += self.one endfunction call timer_start(50, meow.bite) let slept = WaitFor('g:val == 1') call assert_equal(1, g:val) if has('reltime') " Mac on Travis can be slow. if has('mac') call assert_inrange(49, 180, slept) else call assert_inrange(49, 130, slept) endif else call assert_inrange(20, 100, slept) endif endfunc func Test_timer_retain_partial() call timer_start(50, function('MyHandlerWithLists', [['a']])) call test_garbagecollect_now() sleep 100m endfunc func Test_timer_info() let id = timer_start(1000, 'MyHandler') let info = id->timer_info() call assert_equal(id, info[0]['id']) call assert_equal(1000, info[0]['time']) call assert_true(info[0]['remaining'] > 500) call assert_true(info[0]['remaining'] <= 1000) call assert_equal(1, info[0]['repeat']) call assert_equal("function('MyHandler')", string(info[0]['callback'])) let found = 0 for info in timer_info() if info['id'] == id let found += 1 endif endfor call assert_equal(1, found) call timer_stop(id) call assert_equal([], timer_info(id)) call assert_fails('call timer_info("abc")', 'E1210:') " check repeat count inside the callback let g:timer_repeat = [] let tid = timer_start(10, {tid -> execute("call add(g:timer_repeat, timer_info(tid)[0].repeat)")}, #{repeat: 3}) call WaitForAssert({-> assert_equal([2, 1, 0], g:timer_repeat)}) unlet g:timer_repeat endfunc func Test_timer_stopall() let id1 = timer_start(1000, 'MyHandler') let id2 = timer_start(2000, 'MyHandler') let info = timer_info() " count one for the TestTimeout() timer call assert_equal(3, len(info)) call timer_stopall() let info = timer_info() call assert_equal(0, len(info)) endfunc def Test_timer_stopall_with_popup() # Create a popup that times out after ten seconds. # Another timer will fire in half a second and close it early after stopping # all timers. var pop = popup_create('Popup', {time: 10000}) var tmr = timer_start(500, (_) => { timer_stopall() popup_clear() }) sleep 1 assert_equal([], timer_info(tmr)) assert_equal([], popup_list()) enddef func Test_timer_paused() let g:val = 0 let id = timer_start(50, 'MyHandler') let info = timer_info(id) call assert_equal(0, info[0]['paused']) eval id->timer_pause(1) let info = timer_info(id) call assert_equal(1, info[0]['paused']) sleep 100m call assert_equal(0, g:val) call timer_pause(id, 0) let info = timer_info(id) call assert_equal(0, info[0]['paused']) let slept = WaitFor('g:val == 1') call assert_equal(1, g:val) if has('reltime') if has('mac') " The travis Mac machines appear to be very busy. call assert_inrange(0, 90, slept) else call assert_inrange(0, 30, slept) endif else call assert_inrange(0, 10, slept) endif call assert_fails('call timer_pause("abc", 1)', 'E39:') endfunc func StopMyself(timer) let g:called += 1 if g:called == 2 call timer_stop(a:timer) endif endfunc func Test_timer_delete_myself() let g:called = 0 let t = timer_start(10, 'StopMyself', {'repeat': -1}) call WaitForAssert({-> assert_equal(2, g:called)}) call assert_equal(2, g:called) call assert_equal([], timer_info(t)) endfunc func StopTimer1(timer) let g:timer2 = 10->timer_start('StopTimer2') " avoid maxfuncdepth error call timer_pause(g:timer1, 1) sleep 20m endfunc func StopTimer2(timer) call timer_stop(g:timer1) endfunc func Test_timer_stop_in_callback() call assert_equal(1, len(timer_info())) let g:timer1 = timer_start(10, 'StopTimer1') let slept = 0 for i in range(10) if len(timer_info()) == 1 break endif sleep 10m let slept += 10 endfor if slept == 100 call assert_equal(1, len(timer_info())) else " This should take only 30 msec, but on Mac it's often longer call assert_inrange(0, 50, slept) endif endfunc func StopTimerAll(timer) call timer_stopall() endfunc func Test_timer_stop_all_in_callback() " One timer is for TestTimeout() call assert_equal(1, len(timer_info())) call timer_start(10, 'StopTimerAll') call assert_equal(2, len(timer_info())) let slept = 0 for i in range(10) if len(timer_info()) == 0 break endif sleep 10m let slept += 10 endfor if slept == 100 call assert_equal(0, len(timer_info())) else call assert_inrange(0, 30, slept) endif endfunc func FeedkeysCb(timer) call feedkeys("hello\<CR>", 'nt') endfunc func InputCb(timer) call timer_start(10, 'FeedkeysCb') let g:val = input('?') call Resume() endfunc func Test_timer_input_in_timer() let g:val = '' call timer_start(10, 'InputCb') call Standby(1000) call assert_equal('hello', g:val) endfunc func FuncWithError(timer) let g:call_count += 1 if g:call_count == 4 return endif doesnotexist endfunc func Test_timer_errors() let g:call_count = 0 let timer = timer_start(10, 'FuncWithError', {'repeat': -1}) " Timer will be stopped after failing 3 out of 3 times. call WaitForAssert({-> assert_equal(3, g:call_count)}) sleep 50m call assert_equal(3, g:call_count) call assert_fails('call timer_start(100, "MyHandler", "abc")', 'E1206:') call assert_fails('call timer_start(100, [])', 'E921:') call assert_fails('call timer_stop("abc")', 'E1210:') endfunc func FuncWithCaughtError(timer) let g:call_count += 1 try doesnotexist catch " nop endtry endfunc func Test_timer_catch_error() let g:call_count = 0 let timer = timer_start(10, 'FuncWithCaughtError', {'repeat': 4}) " Timer will not be stopped. call WaitForAssert({-> assert_equal(4, g:call_count)}) sleep 50m call assert_equal(4, g:call_count) endfunc func FeedAndPeek(timer) call test_feedinput('a') call getchar(1) endfunc func Interrupt(timer) eval "\<C-C>"->test_feedinput() endfunc func Test_timer_peek_and_get_char() if !has('unix') && !has('gui_running') throw 'Skipped: cannot feed low-level input' endif call timer_start(0, 'FeedAndPeek') let intr = timer_start(100, 'Interrupt') let c = getchar() call assert_equal(char2nr('a'), c) eval intr->timer_stop() endfunc func Test_timer_getchar_zero() if has('win32') && !has('gui_running') throw 'Skipped: cannot feed low-level input' endif CheckFunction reltimefloat " Measure the elapsed time to avoid a hang when it fails. let start = reltime() let id = timer_start(20, {-> feedkeys('x', 'L')}) let c = 0 while c == 0 && reltimefloat(reltime(start)) < 0.2 let c = getchar(0) sleep 10m endwhile call assert_equal('x', nr2char(c)) call timer_stop(id) endfunc func Test_timer_ex_mode() " Function with an empty line. func Foo(...) endfunc let timer = timer_start(40, function('g:Foo'), {'repeat':-1}) " This used to throw error E749. exe "normal Qsleep 100m\rvi\r" call timer_stop(timer) endfunc func Test_timer_restore_count() CheckRunVimInTerminal " Check that v:count is saved and restored, not changed by a timer. call writefile([ \ 'nnoremap <expr><silent> L v:count ? v:count . "l" : "l"', \ 'func Doit(id)', \ ' normal 3j', \ 'endfunc', \ 'call timer_start(100, "Doit")', \ ], 'Xtrcscript', 'D') call writefile([ \ '1-1234', \ '2-1234', \ '3-1234', \ ], 'Xtrctext', 'D') let buf = RunVimInTerminal('-S Xtrcscript Xtrctext', {}) " Wait for the timer to move the cursor to the third line. call WaitForAssert({-> assert_equal(3, term_getcursor(buf)[0])}) call assert_equal(1, term_getcursor(buf)[1]) " Now check that v:count has not been set to 3 call term_sendkeys(buf, 'L') call WaitForAssert({-> assert_equal(2, term_getcursor(buf)[1])}) call StopVimInTerminal(buf) endfunc " Test that the garbage collector isn't triggered if a timer callback invokes " vgetc(). func Test_nocatch_timer_garbage_collect() " FIXME: why does this fail only on MacOS M1? try CheckNotMacM1 catch /Skipped/ let g:skipped_reason = v:exception return endtry " 'uptimetime. must be bigger than the timer timeout set ut=200 call test_garbagecollect_soon() call test_override('no_wait_return', 0) func CauseAnError(id) " This will show an error and wait for Enter. let a = {'foo', 'bar'} endfunc func FeedChar(id) call feedkeys(":\<CR>", 't') endfunc call timer_start(300, 'FeedChar') call timer_start(100, 'CauseAnError') let x = getchar() " wait for error in timer let x = getchar(0) " read any remaining chars let x = getchar(0) set ut& call test_override('no_wait_return', 1) delfunc CauseAnError delfunc FeedChar endfunc func Test_timer_error_in_timer_callback() if !has('terminal') || (has('win32') && has('gui_running')) throw 'Skipped: cannot run Vim in a terminal window' endif let lines =<< trim [CODE] func Func(timer) " fail to create list let x = [ endfunc set updatetime=50 call timer_start(1, 'Func') [CODE] call writefile(lines, 'Xtest.vim', 'D') let buf = term_start(GetVimCommandCleanTerm() .. ' -S Xtest.vim', {'term_rows': 8}) let job = term_getjob(buf) call WaitForAssert({-> assert_notequal('', term_getline(buf, 8))}) " GC must not run during timer callback, which can make Vim crash. call TermWait(buf, 50) call term_sendkeys(buf, "\<CR>") call TermWait(buf, 50) call assert_equal('run', job_status(job)) call term_sendkeys(buf, ":qall!\<CR>") call WaitFor({-> job_status(job) ==# 'dead'}) if has('unix') call assert_equal('', job_info(job).termsig) endif exe buf .. 'bwipe!' endfunc " Test for garbage collection when a timer is still running func Test_timer_garbage_collect() let timer = timer_start(1000, function('MyHandler'), {'repeat' : 10}) call test_garbagecollect_now() let l = timer_info(timer) call assert_equal(function('MyHandler'), l[0].callback) call timer_stop(timer) endfunc func Test_timer_invalid_callback() call assert_fails('call timer_start(0, "0")', 'E921:') endfunc func Test_timer_changing_function_list() CheckRunVimInTerminal " Create a large number of functions. Should get the "more" prompt. " The typing "G" triggers the timer, which changes the function table. let lines =<< trim END for func in map(range(1,99), "'Func' .. v:val") exe "func " .. func .. "()" endfunc endfor au CmdlineLeave : call timer_start(0, {-> 0}) END call writefile(lines, 'XTest_timerchange', 'D') let buf = RunVimInTerminal('-S XTest_timerchange', #{rows: 10}) call term_sendkeys(buf, ":fu\<CR>") call WaitForAssert({-> assert_match('-- More --', term_getline(buf, 10))}) call term_sendkeys(buf, "G") call WaitForAssert({-> assert_match('E454:', term_getline(buf, 9))}) call term_sendkeys(buf, "\<Esc>") call StopVimInTerminal(buf) endfunc func Test_timer_outputting_message() CheckRunVimInTerminal let lines =<< trim END vim9script setline(1, 'some text') set showcmd ut=2000 cmdheight=1 timer_start(0, (_) => { echon repeat('x', &columns - 11) }) END call writefile(lines, 'XTest_timermessage', 'D') let buf = RunVimInTerminal('-S XTest_timermessage', #{rows: 6}) call term_sendkeys(buf, "l") call term_wait(buf) " should not get a hit-enter prompt call WaitForAssert({-> assert_match('xxxxxxxxxxx', term_getline(buf, 6))}) call StopVimInTerminal(buf) endfunc func Test_timer_using_win_execute_undo_sync() " FIXME: why does this fail only on MacOS M1? CheckNotMacM1 let bufnr1 = bufnr() new let g:bufnr2 = bufnr() let g:winid = win_getid() exe "buffer " .. bufnr1 wincmd w call setline(1, ['test']) autocmd InsertEnter * call timer_start(100, { -> win_execute(g:winid, 'buffer ' .. g:bufnr2) }) call timer_start(200, { -> feedkeys("\<CR>bbbb\<Esc>") }) call feedkeys("Oaaaa", 'x!t') " will hang here until the second timer fires call assert_equal(['aaaa', 'bbbb', 'test'], getline(1, '$')) undo call assert_equal(['test'], getline(1, '$')) bwipe! bwipe! unlet g:winid unlet g:bufnr2 au! InsertEnter endfunc " vim: shiftwidth=2 sts=2 expandtab