CodeSampleX

Exemplo

jsdom 26.0.0

Amostra verificada para npm jsdom 26.0.0. O contrato rodou em node 22 · linux alpine/x64 · docker e passou: Instantiating JSDOM parses HTML markup and…

sha256:710b8f223b112ce8086b540bbe4eb3c65f0e072df9706b72d1cb8e72cd7b62a8

Esta rede oferece uma coisa: uma amostra que compila. Ela a executou em um sandbox e guardou o recibo assinado. Não classifica nem garante nada — se o mesmo código compila onde você está, ela não mediu. Quantas chaves de assinatura distintas enviaram um recibo de contrato aprovado. Uma é só o autor; mais de uma significa que outra pessoa também o compilou. Uma chave é gerada por conta própria e não tem identidade registrada por trás, então conta chaves, não pessoas. MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência
Contrato assinado aprovado
Recibos de verificação
1
Chaves de assinatura que o compilaram
1
Ambiente declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Ambientes das execuções de verificação

Ambiente Contrato Etapas Execução
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1		 2026-08-21

Caso

HOW
Objetivo
verify pkg:npm/jsdom@26.0.0
Pacotes
Criado
2026-08-21T12:47:05Z

Contrato

  1. Instantiating JSDOM parses HTML markup and initializes window and document object models with title and body elements
  2. Standard DOM query methods querySelector, querySelectorAll, and getElementById find matching element nodes in the document
  3. Creating elements, setting attributes, modifying classList, and appending nodes dynamically updates the live DOM tree
  4. Mutating innerHTML and textContent updates child elements and text node content in real time
  5. CustomEvent creation and dispatchEvent trigger attached event listeners with bubbling and payload detail support
  6. dom.serialize() outputs the complete serialized HTML document reflecting dynamic DOM mutations
  7. JSDOM.fragment parses HTML strings into a DocumentFragment node containing the parsed child elements

Arquivos

  • PROMPT.md
  • csx.json
  • index.mjs
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

PROMPT.md
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 pkg:npm/jsdom@26.0.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/jsdom@26.0.0

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.
csx.json
{"case":{"caseId":"case:sha256:21c94bbd76eca69801b78a9c02df9268942c0a24d350dda217c4e3d911ac9c54","contract":["Instantiating JSDOM parses HTML markup and initializes window and document object models with title and body elements","Standard DOM query methods querySelector, querySelectorAll, and getElementById find matching element nodes in the document","Creating elements, setting attributes, modifying classList, and appending nodes dynamically updates the live DOM tree","Mutating innerHTML and textContent updates child elements and text node content in real time","CustomEvent creation and dispatchEvent trigger attached event listeners with bubbling and payload detail support","dom.serialize() outputs the complete serialized HTML document reflecting dynamic DOM mutations","JSDOM.fragment parses HTML strings into a DocumentFragment node containing the parsed child elements"],"goal":"verify pkg:npm/jsdom@26.0.0","kind":"HOW","packages":["pkg:npm/jsdom@26.0.0"],"schemaVersion":1},"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/jsdom@26.0.0"],"schemaVersion":1,"subject":"pkg:npm/jsdom@26.0.0","verifierAdapter":"node-typescript@1"}
index.mjs
import { JSDOM } from 'jsdom';

/**
 * Creates a JSDOM instance with the specified HTML string and options.
 * @param {string} [html=''] - HTML content to initialize the DOM.
 * @param {object} [options={}] - JSDOM configuration options.
 * @returns {JSDOM}
 */
export function createDOM(html = '', options = {}) {
  return new JSDOM(html, options);
}

/**
 * Parses an HTML fragment string into a DocumentFragment node.
 * @param {string} fragmentHtml - HTML snippet to parse.
 * @returns {DocumentFragment}
 */
export function parseFragment(fragmentHtml) {
  return JSDOM.fragment(fragmentHtml);
}

/**
 * Serializes a JSDOM instance back into an HTML string.
 * @param {JSDOM} dom - JSDOM instance to serialize.
 * @returns {string}
 */
export function serializeDOM(dom) {
  return dom.serialize();
}
package-lock.json
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package.json
{
  "name": "sample-jsdom",
  "version": "1.0.0",
  "description": "Clean-room verification sample for jsdom",
  "type": "module",
  "private": true,
  "dependencies": {
    "jsdom": "26.0.0"
  },
  "license": "MIT-0"
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/jsdom@26.0.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/jsdom@26.0.0"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { JSDOM } from 'jsdom';
import { createDOM, parseFragment, serializeDOM } from '../index.mjs';

// 1. Initializing JSDOM creates window and document with parsed HTML structure
const dom = createDOM('<!DOCTYPE html><html><head><title>Cleanroom Test</title></head><body><div id="root" class="container"><p class="item">First</p><p class="item">Second</p></div></body></html>');
const { window } = dom;
const { document } = window;

assert.equal(document.title, 'Cleanroom Test');
assert.ok(document.body);
assert.equal(document.body.children.length, 1);

// 2. Querying elements with querySelector, querySelectorAll, and getElementById
const root = document.getElementById('root');
assert.ok(root);
assert.equal(root.className, 'container');

const items = document.querySelectorAll('.item');
assert.equal(items.length, 2);
assert.equal(items[0].textContent, 'First');
assert.equal(items[1].textContent, 'Second');

const firstItem = document.querySelector('#root > p.item');
assert.equal(firstItem.textContent, 'First');

// 3. DOM element creation, attribute mutation, and tree manipulation
const badge = document.createElement('span');
badge.id = 'status-badge';
badge.setAttribute('data-status', 'ready');
badge.classList.add('badge', 'active');
badge.textContent = 'Ready';

root.appendChild(badge);

assert.equal(root.children.length, 3);
const retrievedBadge = document.getElementById('status-badge');
assert.equal(retrievedBadge.getAttribute('data-status'), 'ready');
assert.ok(retrievedBadge.classList.contains('badge'));
assert.ok(retrievedBadge.classList.contains('active'));

// 4. innerHTML and textContent mutation update the live DOM
items[0].innerHTML = '<em>Modified First</em>';
assert.equal(items[0].children.length, 1);
assert.equal(items[0].children[0].tagName, 'EM');
assert.equal(items[0].textContent, 'Modified First');

// 5. Event dispatching and listener execution with bubbling
let eventDispatched = false;
let eventPayload = null;

root.addEventListener('custom-update', (event) => {
  eventDispatched = true;
  eventPayload = event.detail;
});

const customEvent = new window.CustomEvent('custom-update', {
  bubbles: true,
  detail: { status: 'ok', code: 200 }
});

badge.dispatchEvent(customEvent);
assert.equal(eventDispatched, true);
assert.deepEqual(eventPayload, { status: 'ok', code: 200 });

// 6. Document serialization via dom.serialize() reflects dynamic mutations
const serializedHtml = serializeDOM(dom);
assert.ok(serializedHtml.includes('<title>Cleanroom Test</title>'));
assert.ok(serializedHtml.includes('<em>Modified First</em>'));
assert.ok(serializedHtml.includes('<span id="status-badge" data-status="ready" class="badge active">Ready</span>'));

// 7. JSDOM.fragment() parses HTML snippets into a DocumentFragment without full document wrapper
const fragment = parseFragment('<article class="post"><h1>Post Title</h1><p>Post Body</p></article>');
assert.equal(fragment.nodeType, 11);
assert.equal(fragment.children.length, 1);
assert.equal(fragment.firstElementChild.tagName, 'ARTICLE');
assert.equal(fragment.querySelector('h1').textContent, 'Post Title');
assert.equal(fragment.querySelector('p').textContent, 'Post Body');

console.log('All jsdom@26.0.0 contract tests passed successfully.');

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