@xmldom/xmldom 0.8.13: DOMParser

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 @xmldom/xmldom.DOMParser in pkg:npm/%40xmldom/xmldom@0.8.13
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40xmldom/xmldom@0.8.13
Demonstrate these symbols/APIs:
  - @xmldom/xmldom.DOMParser

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:f39eacacfbd38bea5d9efd12522904abca6299749f53a89cc9f17facb205e2e3","contract":["@xmldom/xmldom.DOMParser parses XML string and returns a DOM Document with documentElement and child nodes","@xmldom/xmldom.DOMParser supports getElementsByTagName, getElementsByTagNameNS, and attribute retrieval on parsed elements","@xmldom/xmldom.DOMParser supports custom errorHandler callbacks for warning, error, and fatalError"],"goal":"verify @xmldom/xmldom.DOMParser in pkg:npm/%40xmldom/xmldom@0.8.13","kind":"HOW","packages":["pkg:npm/%40xmldom/xmldom@0.8.13"],"schemaVersion":1,"symbols":["@xmldom/xmldom.DOMParser"]},"contractCommand":["node","test/contract.cjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40xmldom/xmldom@0.8.13"],"schemaVersion":1,"subject":"pkg:npm/%40xmldom/xmldom@0.8.13","symbols":["@xmldom/xmldom.DOMParser"],"verifierAdapter":"node-typescript@1"}

'use strict';

const { DOMParser } = require('@xmldom/xmldom');

/**
 * Parses an XML string into a DOM Document using @xmldom/xmldom.DOMParser.
 * @param {string} xmlString
 * @param {string} [mimeType='text/xml']
 * @param {object} [options]
 * @returns {Document}
 */
function parseXml(xmlString, mimeType = 'text/xml', options = {}) {
  const parser = new DOMParser(options);
  return parser.parseFromString(xmlString, mimeType);
}

module.exports = {
  DOMParser,
  parseXml
};

{
  "name": "sample-xmldom-domparser",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-xmldom-domparser",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@xmldom/xmldom": "0.8.13"
      }
    },
    "node_modules/@xmldom/xmldom": {
      "version": "0.8.13",
      "resolved": "https://registry.npmjs.org/@xmldom/xmldom/-/xmldom-0.8.13.tgz",
      "integrity": "sha512-KRYzxepc14G/CEpEGc3Yn+JKaAeT63smlDr+vjB8jRfgTBBI9wRj/nkQEO+ucV8p8I9bfKLWp37uHgFrbntPvw==",
      "deprecated": "this version has critical issues, please update to the latest version",
      "license": "MIT",
      "engines": {
        "node": ">=10.0.0"
      }
    }
  }
}

{
  "name": "sample-xmldom-domparser",
  "version": "1.0.0",
  "private": true,
  "description": "verify @xmldom/xmldom.DOMParser in pkg:npm/%40xmldom/xmldom@0.8.13",
  "main": "index.js",
  "scripts": {
    "test": "node test/contract.cjs"
  },
  "dependencies": {
    "@xmldom/xmldom": "0.8.13"
  },
  "license": "MIT-0"
}

{
  "schemaVersion": 1,
  "goal": "verify @xmldom/xmldom.DOMParser in pkg:npm/%40xmldom/xmldom@0.8.13",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40xmldom/xmldom@0.8.13"
  ],
  "symbols": [
    "@xmldom/xmldom.DOMParser"
  ]
}

'use strict';

const assert = require('assert');
const { DOMParser } = require('@xmldom/xmldom');
const { parseXml } = require('../index.js');

function run() {
  // 1. Basic XML parsing and document element inspection
  const parser = new DOMParser();
  const xml = '<library><book id="b1"><title>Clean Code</title><author>Robert Martin</author></book><book id="b2"><title>Refactoring</title><author>Martin Fowler</author></book></library>';
  const doc = parser.parseFromString(xml, 'text/xml');

  assert(doc, 'parseFromString should return a document object');
  assert.strictEqual(doc.documentElement.nodeName, 'library', 'Root element should be library');

  // 2. Element retrieval by tag name and attribute inspection
  const books = doc.getElementsByTagName('book');
  assert.strictEqual(books.length, 2, 'Should find two book elements');
  assert.strictEqual(books[0].getAttribute('id'), 'b1', 'First book id should be b1');
  assert.strictEqual(books[1].getAttribute('id'), 'b2', 'Second book id should be b2');

  const titles = doc.getElementsByTagName('title');
  assert.strictEqual(titles.length, 2, 'Should find two title elements');
  assert.strictEqual(titles[0].textContent, 'Clean Code', 'First title text should match');
  assert.strictEqual(titles[1].textContent, 'Refactoring', 'Second title text should match');

  // 3. XML namespace handling
  const nsXml = '<root xmlns:ns="http://example.com/ns"><ns:item name="sample">Namespaced Content</ns:item></root>';
  const nsDoc = parser.parseFromString(nsXml, 'text/xml');
  const items = nsDoc.getElementsByTagNameNS('http://example.com/ns', 'item');
  assert.strictEqual(items.length, 1, 'Should find one namespaced item');
  assert.strictEqual(items[0].getAttribute('name'), 'sample', 'Attribute name should match');
  assert.strictEqual(items[0].textContent, 'Namespaced Content', 'Text content should match');

  // 4. Helper function exported by index.js
  const helperDoc = parseXml('<response status="ok"><data>Payload</data></response>');
  assert.strictEqual(helperDoc.documentElement.nodeName, 'response', 'Helper parseXml should return valid doc');
  assert.strictEqual(helperDoc.documentElement.getAttribute('status'), 'ok', 'Attribute status should be ok');
  assert.strictEqual(helperDoc.getElementsByTagName('data')[0].textContent, 'Payload', 'Data text should match');

  // 5. Custom errorHandler callback handling
  const warnings = [];
  const errorParser = new DOMParser({
    errorHandler: {
      warning: (w) => warnings.push(w),
      error: (e) => {},
      fatalError: (fe) => {}
    }
  });
  errorParser.parseFromString('<unclosed><tag>', 'text/xml');
  assert(warnings.length > 0, 'DOMParser should invoke custom errorHandler callbacks on malformed XML');

  console.log('Contract tests passed successfully.');
}

try {
  run();
  process.exit(0);
} catch (err) {
  console.error('Contract test failed:', err);
  process.exit(1);
}