electron-to-chromium 1.5.412: electronToChromium

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 electron-to-chromium.electronToChromium in pkg:npm/electron-to-chromium@1.5.412
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/electron-to-chromium@1.5.412
Demonstrate these symbols/APIs:
  - electron-to-chromium.electronToChromium
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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:sha256:11937fcfbaa2d2ea3dce6852ca7b839e3f50983a238d84df181b21e419b90e9d","constraints":{"executionContext":"node"},"contract":["electronToChromium maps major Electron version strings to corresponding Chromium major version strings","electronToChromium maps numeric Electron version inputs to corresponding Chromium version strings","electronToChromium maps full three-segment Electron version strings to exact Chromium full release version strings","electronToChromium returns undefined for unknown or unreleased Electron versions"],"goal":"verify electron-to-chromium.electronToChromium in pkg:npm/electron-to-chromium@1.5.412","kind":"HOW","packages":["pkg:npm/electron-to-chromium@1.5.412"],"schemaVersion":1,"symbols":["electron-to-chromium.electronToChromium"]},"contractCommand":["node","test/contract.mjs"],"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/electron-to-chromium@1.5.412"],"schemaVersion":1,"subject":"pkg:npm/electron-to-chromium@1.5.412","symbols":["electron-to-chromium.electronToChromium"],"verifierAdapter":"node-typescript@1"}

import electronToChromiumPkg from 'electron-to-chromium';

const { electronToChromium } = electronToChromiumPkg;

/**
 * Resolve the Chromium version corresponding to a given Electron version string or number.
 *
 * @param {string|number} electronVersion - The Electron version to resolve (e.g. "1.4", "1.4.13", 1).
 * @returns {string|undefined} The mapped Chromium version string, or undefined if not found.
 */
export function getChromiumVersion(electronVersion) {
  return electronToChromium(electronVersion);
}

export { electronToChromium };
export default electronToChromium;

{
  "name": "sample-electron-to-chromium-electrontochromium",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-electron-to-chromium-electrontochromium",
      "version": "1.0.0",
      "dependencies": {
        "electron-to-chromium": "1.5.412"
      }
    },
    "node_modules/electron-to-chromium": {
      "version": "1.5.412",
      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.412.tgz",
      "integrity": "sha512-z4rMe3esBzlzovKHj4gxJnsCGZRK5l4baUvm+gCGJBPE+gsyUMKsuU9tnEUtI1dOebXz1ytAPGjvXhmQ7rIPwA==",
      "license": "ISC"
    }
  }
}

{
  "name": "sample-electron-to-chromium-electrontochromium",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "electron-to-chromium": "1.5.412"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify electron-to-chromium.electronToChromium in pkg:npm/electron-to-chromium@1.5.412",
  "kind": "HOW",
  "packages": [
    "pkg:npm/electron-to-chromium@1.5.412"
  ],
  "symbols": [
    "electron-to-chromium.electronToChromium"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}

import assert from 'node:assert/strict';
import electronToChromium, { getChromiumVersion } from '../index.mjs';

// 1. electronToChromium maps major Electron version strings to corresponding Chromium major version strings
{
  assert.strictEqual(electronToChromium('1.4'), '53');
  assert.strictEqual(electronToChromium('2.0'), '61');
  assert.strictEqual(electronToChromium('3.0'), '66');
  assert.strictEqual(electronToChromium('32.0'), '128');

  assert.strictEqual(getChromiumVersion('1.4'), '53');
  assert.strictEqual(getChromiumVersion('32.0'), '128');
}

// 2. electronToChromium maps numeric Electron version inputs to corresponding Chromium version strings
{
  assert.strictEqual(electronToChromium(1), '49');
  assert.strictEqual(electronToChromium(1.4), '53');
  assert.strictEqual(getChromiumVersion(1), '49');
  assert.strictEqual(getChromiumVersion(1.4), '53');
}

// 3. electronToChromium maps full three-segment Electron version strings to exact Chromium full release version strings
{
  assert.strictEqual(electronToChromium('1.4.13'), '53.0.2785.143');
  assert.strictEqual(electronToChromium('2.0.18'), '61.0.3163.100');
  assert.strictEqual(electronToChromium('30.0.0'), '124.0.6367.49');
  assert.strictEqual(electronToChromium('32.0.0'), '128.0.6613.36');

  assert.strictEqual(getChromiumVersion('1.4.13'), '53.0.2785.143');
  assert.strictEqual(getChromiumVersion('32.0.0'), '128.0.6613.36');
}

// 4. electronToChromium returns undefined for unknown or unreleased Electron versions
{
  assert.strictEqual(electronToChromium('9999.0'), undefined);
  assert.strictEqual(electronToChromium('9999.0.0'), undefined);
  assert.strictEqual(electronToChromium('invalid-version'), undefined);

  assert.strictEqual(getChromiumVersion('9999.0'), undefined);
  assert.strictEqual(getChromiumVersion('unknown'), undefined);
}

console.log('Contract test passed.');