node/test/parallel/test-fs-write-sigxfsz.js
Antoine du Hamel 99e0d0d218
test: add escapePOSIXShell util
PR-URL: https://github.com/nodejs/node/pull/55125
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: LiviaMedeiros <livia@cirno.name>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
2024-09-29 20:44:52 +00:00

32 lines
1.1 KiB
JavaScript

// Check that exceeding RLIMIT_FSIZE fails with EFBIG
// rather than terminating the process with SIGXFSZ.
'use strict';
const common = require('../common');
const tmpdir = require('../common/tmpdir');
const assert = require('assert');
const child_process = require('child_process');
const fs = require('fs');
if (common.isWindows)
common.skip('no RLIMIT_FSIZE on Windows');
if (process.config.variables.node_shared)
common.skip('SIGXFSZ signal handler not installed in shared library mode');
if (process.argv[2] === 'child') {
const filename = tmpdir.resolve('efbig.txt');
tmpdir.refresh();
fs.writeFileSync(filename, '.'.repeat(1 << 16)); // Exceeds RLIMIT_FSIZE.
} else {
const [cmd, opts] = common.escapePOSIXShell`ulimit -f 1 && "${process.execPath}" "${__filename}" child`;
const result = child_process.spawnSync('/bin/sh', ['-c', cmd], opts);
const haystack = result.stderr.toString();
const needle = 'Error: EFBIG: file too large, write';
const ok = haystack.includes(needle);
if (!ok) console.error(haystack);
assert(ok);
assert.strictEqual(result.status, 1);
assert.strictEqual(result.stdout.toString(), '');
}