mirror of
https://github.com/nodejs/node.git
synced 2025-05-02 17:01:08 +00:00
4f20c882ec
PR-URL: https://github.com/nodejs/node/pull/45548 Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
49 lines
1.5 KiB
JavaScript
49 lines
1.5 KiB
JavaScript
// Flags: --expose-gc
|
|
'use strict';
|
|
|
|
const common = require('../../common');
|
|
const skipMessage = 'intensive toString tests due to memory confinements';
|
|
if (!common.enoughTestMem)
|
|
common.skip(skipMessage);
|
|
|
|
const binding = require(`./build/${common.buildType}/binding`);
|
|
const assert = require('assert');
|
|
|
|
// v8 fails silently if string length > v8::String::kMaxLength
|
|
// v8::String::kMaxLength defined in v8.h
|
|
const kStringMaxLength = require('buffer').constants.MAX_STRING_LENGTH;
|
|
|
|
let buf;
|
|
try {
|
|
buf = Buffer.allocUnsafe(kStringMaxLength + 1);
|
|
} catch (e) {
|
|
// If the exception is not due to memory confinement then rethrow it.
|
|
if (e.message !== 'Array buffer allocation failed') throw (e);
|
|
common.skip(skipMessage);
|
|
}
|
|
|
|
// Ensure we have enough memory available for future allocations to succeed.
|
|
if (!binding.ensureAllocation(2 * kStringMaxLength))
|
|
common.skip(skipMessage);
|
|
|
|
const stringLengthHex = kStringMaxLength.toString(16);
|
|
assert.throws(() => {
|
|
buf.toString('latin1');
|
|
}, {
|
|
message: `Cannot create a string longer than 0x${stringLengthHex} ` +
|
|
'characters',
|
|
code: 'ERR_STRING_TOO_LONG',
|
|
name: 'Error',
|
|
});
|
|
|
|
// FIXME: Free the memory early to avoid OOM.
|
|
// REF: https://github.com/nodejs/reliability/issues/12#issuecomment-412619655
|
|
global.gc();
|
|
let maxString = buf.toString('latin1', 1);
|
|
assert.strictEqual(maxString.length, kStringMaxLength);
|
|
maxString = undefined;
|
|
global.gc();
|
|
|
|
maxString = buf.toString('latin1', 0, kStringMaxLength);
|
|
assert.strictEqual(maxString.length, kStringMaxLength);
|