Mercurial > vim
view src/testdir/test_memory_usage.vim @ 33225:52b121d4feb5 v9.0.1887
patch 9.0.1887: Vim9: class members are accessible via object
Commit: https://github.com/vim/vim/commit/23c92d93c1b877edf18881b715ad51ec26386c2e
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Sat Sep 9 11:33:29 2023 +0200
patch 9.0.1887: Vim9: class members are accessible via object
Problem: Vim9: class members are accessible via object
Solution: Disable class member variable access using an object
Class methods can be accessed only using the class name and cannot be
accessed using an object. To be consistent with this, do the same for
class member variables also. They can be accessed only using the class
name and not using an object.
closes: #13057
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sat, 09 Sep 2023 11:45:06 +0200 |
parents | 72245f9c9405 |
children |
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" Tests for memory usage. source check.vim CheckFeature terminal CheckNotGui " Skip tests on Travis CI ASAN build because it's difficult to estimate memory " usage. CheckNotAsan source shared.vim func s:pick_nr(str) abort return substitute(a:str, '[^0-9]', '', 'g') * 1 endfunc if has('win32') if !executable('wmic') throw 'Skipped: wmic program missing' endif func s:memory_usage(pid) abort let cmd = printf('wmic process where processid=%d get WorkingSetSize', a:pid) return s:pick_nr(system(cmd)) / 1024 endfunc elseif has('unix') if !executable('ps') throw 'Skipped: ps program missing' endif func s:memory_usage(pid) abort return s:pick_nr(system('ps -o rss= -p ' . a:pid)) endfunc else throw 'Skipped: not win32 or unix' endif " Wait for memory usage to level off. func s:monitor_memory_usage(pid) abort let proc = {} let proc.pid = a:pid let proc.hist = [] let proc.max = 0 func proc.op() abort " Check the last 200ms. let val = s:memory_usage(self.pid) if self.max < val let self.max = val endif call add(self.hist, val) if len(self.hist) < 20 return 0 endif let sample = remove(self.hist, 0) return len(uniq([sample] + self.hist)) == 1 endfunc call WaitFor({-> proc.op()}, 10000) return {'last': get(proc.hist, -1), 'max': proc.max} endfunc let s:term_vim = {} func s:term_vim.start(...) abort let self.buf = term_start([GetVimProg()] + a:000) let self.job = term_getjob(self.buf) call WaitFor({-> job_status(self.job) ==# 'run'}) let self.pid = job_info(self.job).process " running an external command may fail once in a while let g:test_is_flaky = 1 endfunc func s:term_vim.stop() abort call term_sendkeys(self.buf, ":qall!\<CR>") call WaitFor({-> job_status(self.job) ==# 'dead'}) exe self.buf . 'bwipe!' endfunc func s:vim_new() abort return copy(s:term_vim) endfunc func Test_memory_func_capture_vargs() " Case: if a local variable captures a:000, funccall object will be free " just after it finishes. let testfile = 'Xtest.vim' let lines =<< trim END func s:f(...) let x = a:000 endfunc for _ in range(10000) call s:f(0) endfor END call writefile(lines, testfile, 'D') let vim = s:vim_new() call vim.start('--clean', '-c', 'set noswapfile', testfile) let before = s:monitor_memory_usage(vim.pid).last call term_sendkeys(vim.buf, ":so %\<CR>") call WaitFor({-> term_getcursor(vim.buf)[0] == 1}) let after = s:monitor_memory_usage(vim.pid) " Estimate the limit of max usage as 2x initial usage. " The lower limit can fluctuate a bit, use 97%. call assert_inrange(before * 97 / 100, 2 * before, after.max) " In this case, garbage collecting is not needed. " The value might fluctuate a bit, allow for 3% tolerance below and 5% above. " Based on various test runs. let lower = after.last * 97 / 100 let upper = after.last * 105 / 100 call assert_inrange(lower, upper, after.max) call vim.stop() endfunc func Test_memory_func_capture_lvars() " Case: if a local variable captures l: dict, funccall object will not be " free until garbage collector runs, but after that memory usage doesn't " increase so much even when rerun Xtest.vim since system memory caches. let testfile = 'Xtest.vim' let lines =<< trim END func s:f() let x = l: endfunc for _ in range(10000) call s:f() endfor END call writefile(lines, testfile, 'D') let vim = s:vim_new() call vim.start('--clean', '-c', 'set noswapfile', testfile) let before = s:monitor_memory_usage(vim.pid).last call term_sendkeys(vim.buf, ":so %\<CR>") call WaitFor({-> term_getcursor(vim.buf)[0] == 1}) let after = s:monitor_memory_usage(vim.pid) " Rerun Xtest.vim. for _ in range(3) call term_sendkeys(vim.buf, ":so %\<CR>") call WaitFor({-> term_getcursor(vim.buf)[0] == 1}) let last = s:monitor_memory_usage(vim.pid).last endfor " The usage may be a bit less than the last value, use 80%. " Allow for 20% tolerance at the upper limit. That's very permissive, but " otherwise the test fails sometimes. On Cirrus CI with FreeBSD we need to " be even much more permissive. if has('bsd') let multiplier = 19 else let multiplier = 12 endif let lower = before * 8 / 10 let upper = (after.max + (after.last - before)) * multiplier / 10 call assert_inrange(lower, upper, last) call vim.stop() endfunc " vim: shiftwidth=2 sts=2 expandtab