@types/react-dom 19.2.4: version

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 @types/react-dom.version in pkg:npm/%40types/react-dom@19.2.4
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40types/react-dom@19.2.4
Demonstrate these symbols/APIs:
  - @types/react-dom.version

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:fbc08e7b25afdd97b5012077962fb4927bd6c1396d361362194bcd6f7167336d","contract":["@types/react-dom package.json defines package name as @types/react-dom and version as 19.2.4","@types/react-dom package.json specifies index.d.ts as the types entry point","@types/react-dom index.d.ts exists and declares version export of type string","@types/react-dom index.d.ts exports ReactDOM namespace","@types/react-dom package declares peerDependency @types/react"],"goal":"verify @types/react-dom.version in pkg:npm/%40types/react-dom@19.2.4","kind":"HOW","packages":["pkg:npm/%40types/react-dom@19.2.4"],"schemaVersion":1,"symbols":["@types/react-dom.version"]},"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/%40types/react-dom@19.2.4"],"schemaVersion":1,"subject":"pkg:npm/%40types/react-dom@19.2.4","symbols":["@types/react-dom.version"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-types-react-dom-version",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-types-react-dom-version",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@types/react-dom": "19.2.4"
      }
    },
    "node_modules/@types/react": {
      "version": "19.2.18",
      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.18.tgz",
      "integrity": "sha512-AnzbBERsrLKtk2XSfTbYRLjQPdy116Sty4q+T+Bp3IC4l6jNBvreVPAHmpq9qhXQM7CXZPjLVmGMw9sy+hxQ3w==",
      "license": "MIT",
      "peer": true,
      "dependencies": {
        "csstype": "^3.2.2"
      }
    },
    "node_modules/@types/react-dom": {
      "version": "19.2.4",
      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.4.tgz",
      "integrity": "sha512-Bsc+QHgp+P/F02XDzNCY9jnZNCUuLki36KT7VKrTXXLdHf+vHMNZnW1rVu5DNW/rCK+fya3DATySbLM4yhtKUw==",
      "license": "MIT",
      "peerDependencies": {
        "@types/react": "^19.2.0"
      }
    },
    "node_modules/csstype": {
      "version": "3.2.3",
      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
      "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
      "license": "MIT",
      "peer": true
    }
  }
}

{
  "name": "sample-types-react-dom-version",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "@types/react-dom": "19.2.4"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @types/react-dom.version in pkg:npm/%40types/react-dom@19.2.4",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40types/react-dom@19.2.4"
  ],
  "symbols": [
    "@types/react-dom.version"
  ]
}

import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);

// 1. @types/react-dom package.json defines package name as @types/react-dom and version as 19.2.4
const pkgJsonPath = require.resolve('@types/react-dom/package.json');
const pkgJson = JSON.parse(fs.readFileSync(pkgJsonPath, 'utf8'));
assert.equal(pkgJson.name, '@types/react-dom');
assert.equal(pkgJson.version, '19.2.4');

// 2. @types/react-dom package.json specifies index.d.ts as the types entry point
assert.equal(pkgJson.types, 'index.d.ts');

// 3. @types/react-dom index.d.ts exists and declares version export of type string
const pkgDir = path.dirname(pkgJsonPath);
const indexDtsPath = path.resolve(pkgDir, pkgJson.types);
assert.ok(fs.existsSync(indexDtsPath));
const indexDtsContent = fs.readFileSync(indexDtsPath, 'utf8');
assert.ok(indexDtsContent.includes('export const version: string;'));

// 4. @types/react-dom index.d.ts exports ReactDOM namespace
assert.ok(indexDtsContent.includes('export as namespace ReactDOM;'));

// 5. @types/react-dom package declares peerDependency @types/react
assert.ok(pkgJson.peerDependencies && pkgJson.peerDependencies['@types/react']);

console.log('All contract tests passed.');