Exemple
puppeteer-core 24.4.0: defaultArgs
Échantillon vérifié pour npm puppeteer-core 24.4.0: defaultArgs. Le contrat s'est exécuté sur node 22 · linux alpine/x64 · docker et a réussi.
sha256:40287cdea3e952756ea8ea55918740504916de5c5ff6164c918d34fbcdb59d23
Ce réseau offre une seule chose : un échantillon qui compile. Il l'a exécuté dans un bac à sable et conservé le reçu signé. Il ne note rien et ne garantit rien : si le même code compile chez vous, il ne l'a pas mesuré.
Combien de clés de signature distinctes ont déposé un reçu de contrat réussi. Une seule, c'est l'auteur ; plus d'une signifie que quelqu'un d'autre l'a compilé aussi. Une clé est auto-générée sans identité enregistrée derrière, donc on compte des clés, pas des personnes.
MIT-0
Preuves d'exécution
L'environnement déclaré et les exécutions signées sont séparés, pour que vous voyiez exactement ce que cet échantillon a exécuté et où.
- Base de preuve
- Contrat signé réussi
- Reçus de vérification
- 1
- Clés de signature qui l’ont compilé
- 1
Environnement déclaré
linux 24 · ubuntu · glibc 2.39 x64 npm
Environnements des exécutions de vérification
| Environnement | Contrat | Étapes | Exécution |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-28 |
Cas
HOW- Objectif
- verify puppeteer-core.defaultArgs in pkg:npm/puppeteer-core@24.4.0
- Paquets
- Symboles
-
- puppeteer-core.defaultArgs
- Créé
- 2026-08-28T03:15:00Z
Contrat
- puppeteer.defaultArgs returns default chromium launch arguments array
- puppeteer.defaultArgs includes headless mode by default
- puppeteer.defaultArgs with headless false excludes headless flags
- puppeteer.defaultArgs with headless shell uses legacy headless flag
- puppeteer.defaultArgs with userDataDir adds custom user data directory argument
- puppeteer.defaultArgs with devtools true enables devtools and disables headless flags
- puppeteer.defaultArgs with custom args appends arguments to defaults
Fichiers
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Code source
Clean-room public code sample — generation instructions
Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.
A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.
Goal: verify puppeteer-core.defaultArgs in pkg:npm/puppeteer-core@24.4.0
Kind: HOW
Use EXACTLY these public packages and versions:
- pkg:npm/puppeteer-core@24.4.0
Demonstrate these symbols/APIs:
- puppeteer-core.defaultArgs
Rules:
- One focused purpose; the smallest project that proves the goal.
- Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
- Pin every dependency with a lockfile so resolution is reproducible.
- No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
- No personal names, emails, company names, or project identifiers of any kind.
- No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
- Keep it under 200 files and 256KB packed.
{"case":{"caseId":"case:sha256:03773c8eb76f336594b2da270fe8fbe149ccf6f5392a71615cbb4e1e576b0717","contract":["puppeteer.defaultArgs returns default chromium launch arguments array","puppeteer.defaultArgs includes headless mode by default","puppeteer.defaultArgs with headless false excludes headless flags","puppeteer.defaultArgs with headless shell uses legacy headless flag","puppeteer.defaultArgs with userDataDir adds custom user data directory argument","puppeteer.defaultArgs with devtools true enables devtools and disables headless flags","puppeteer.defaultArgs with custom args appends arguments to defaults"],"goal":"verify puppeteer-core.defaultArgs in pkg:npm/puppeteer-core@24.4.0","kind":"HOW","packages":["pkg:npm/puppeteer-core@24.4.0"],"schemaVersion":1,"symbols":["puppeteer-core.defaultArgs"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/puppeteer-core@24.4.0"],"schemaVersion":1,"subject":"pkg:npm/puppeteer-core@24.4.0","symbols":["puppeteer-core.defaultArgs"],"verifierAdapter":"node-typescript@1"}
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"node": ">=12"
}
},
"node_modules/yauzl": {
"version": "2.10.0",
"resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
"integrity": "sha512-p4a9I6X6nu6IhoGmBqAcbJy1mlC4j27vEPZX9F4L4/vZT3Lyq1VkFHw/V/PUcB9Buo+DG3iHkT0x3Qya58zc3g==",
"license": "MIT",
"dependencies": {
"buffer-crc32": "~0.2.3",
"fd-slicer": "~1.1.0"
}
},
"node_modules/zod": {
"version": "3.25.76",
"resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
"integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
"license": "MIT",
"funding": {
"url": "https://github.com/sponsors/colinhacks"
}
}
}
}
{
"name": "sample-puppeteer-core-default-args",
"version": "1.0.0",
"private": true,
"description": "Clean-room code sample for puppeteer-core defaultArgs",
"main": "src/index.js",
"license": "MIT-0",
"dependencies": {
"puppeteer-core": "24.4.0"
}
}
{
"schemaVersion": 1,
"goal": "verify puppeteer-core.defaultArgs in pkg:npm/puppeteer-core@24.4.0",
"kind": "HOW",
"packages": [
"pkg:npm/puppeteer-core@24.4.0"
],
"symbols": [
"puppeteer-core.defaultArgs"
]
}
const puppeteer = require('puppeteer-core');
/**
* Returns default Chromium launch arguments array configured by puppeteer-core.
*
* @param {object} [options] - Options for configuring default arguments.
* @param {boolean|'shell'} [options.headless] - Headless mode option.
* @param {string[]} [options.args] - Additional command-line arguments.
* @param {string} [options.userDataDir] - Custom user data directory.
* @param {boolean} [options.devtools] - Whether to auto-open DevTools panel.
* @returns {string[]} Array of command-line arguments for Chromium.
*/
function getDefaultArgs(options) {
return puppeteer.defaultArgs(options);
}
module.exports = {
puppeteer,
defaultArgs: puppeteer.defaultArgs,
getDefaultArgs
};
import assert from 'node:assert/strict';
import { createRequire } from 'node:module';
const require = createRequire(import.meta.url);
const { puppeteer, defaultArgs, getDefaultArgs } = require('../src/index.js');
async function runContractTests() {
// 1. puppeteer.defaultArgs returns default chromium launch arguments array
assert.equal(typeof puppeteer.defaultArgs, 'function', 'puppeteer.defaultArgs must be a function');
assert.equal(typeof defaultArgs, 'function', 'defaultArgs export must be a function');
assert.equal(typeof getDefaultArgs, 'function', 'getDefaultArgs export must be a function');
const baseArgs = defaultArgs();
assert.ok(Array.isArray(baseArgs), 'defaultArgs() must return an array');
assert.ok(baseArgs.includes('--disable-background-networking'), 'should include standard isolation flags');
assert.ok(baseArgs.includes('--enable-automation'), 'should include automation flags');
assert.ok(baseArgs.includes('about:blank'), 'should include target URL');
// 2. puppeteer.defaultArgs includes headless mode by default
assert.ok(baseArgs.includes('--headless=new'), 'default args should include --headless=new');
// 3. puppeteer.defaultArgs with headless false excludes headless flags
const nonHeadlessArgs = defaultArgs({ headless: false });
assert.ok(Array.isArray(nonHeadlessArgs), 'non-headless args must be an array');
assert.ok(!nonHeadlessArgs.includes('--headless=new'), 'non-headless args should not contain --headless=new');
assert.ok(!nonHeadlessArgs.includes('--headless'), 'non-headless args should not contain --headless');
// 4. puppeteer.defaultArgs with headless shell uses legacy headless flag
const shellHeadlessArgs = defaultArgs({ headless: 'shell' });
assert.ok(shellHeadlessArgs.includes('--headless'), 'headless shell should contain legacy --headless flag');
assert.ok(!shellHeadlessArgs.includes('--headless=new'), 'headless shell should not contain --headless=new');
// 5. puppeteer.defaultArgs with userDataDir adds custom user data directory argument
const customProfileArgs = defaultArgs({ userDataDir: 'custom-user-data-dir' });
assert.ok(
customProfileArgs.some(arg => arg.startsWith('--user-data-dir=') && arg.endsWith('custom-user-data-dir')),
'should include specified user data directory flag'
);
// 6. puppeteer.defaultArgs with devtools true enables devtools and disables headless flags
const devtoolsArgs = defaultArgs({ devtools: true });
assert.ok(
devtoolsArgs.includes('--auto-open-devtools-for-tabs'),
'devtools: true should include auto open devtools flag'
);
assert.ok(!devtoolsArgs.includes('--headless=new'), 'devtools: true should disable headless mode');
assert.ok(!devtoolsArgs.includes('--headless'), 'devtools: true should disable legacy headless flag');
// 7. puppeteer.defaultArgs with custom args appends arguments to defaults
const customFlags = defaultArgs({ args: ['--custom-flag-1', '--custom-flag-2'] });
assert.ok(customFlags.includes('--custom-flag-1'), 'should contain first custom argument');
assert.ok(customFlags.includes('--custom-flag-2'), 'should contain second custom argument');
assert.ok(customFlags.includes('--enable-automation'), 'should still contain base default arguments');
console.log('All puppeteer-core.defaultArgs contract tests passed.');
}
runContractTests().catch((err) => {
console.error('Contract test failed:', err);
process.exit(1);
});
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