@types/prop-types 15.7.15: typeScriptVersion

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/prop-types.typeScriptVersion in pkg:npm/%40types/prop-types@15.7.15
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40types/prop-types@15.7.15
Demonstrate these symbols/APIs:
  - @types/prop-types.typeScriptVersion

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:f73916a31abda3f8585566e05d6fd65ef5104c7ef60e41cd1f91d48ba193489f","contract":["@types/prop-types package.json declares typeScriptVersion property with value \"5.1\"","@types/prop-types package.json typeScriptVersion is accessible via package manifest resolution","@types/prop-types package.json typeScriptVersion format is valid major.minor version string matching semver pattern","@types/prop-types package manifest pairs typeScriptVersion \"5.1\" with types entry point \"index.d.ts\" and package version \"15.7.15\"","@types/prop-types index.d.ts exists and declares TypeScript definitions compatible with typeScriptVersion \"5.1\""],"goal":"verify @types/prop-types.typeScriptVersion in pkg:npm/%40types/prop-types@15.7.15","kind":"HOW","packages":["pkg:npm/%40types/prop-types@15.7.15"],"schemaVersion":1,"symbols":["@types/prop-types.typeScriptVersion"]},"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/prop-types@15.7.15"],"schemaVersion":1,"subject":"pkg:npm/%40types/prop-types@15.7.15","symbols":["@types/prop-types.typeScriptVersion"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-types-prop-types-typescript-version",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-types-prop-types-typescript-version",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@types/prop-types": "15.7.15"
      }
    },
    "node_modules/@types/prop-types": {
      "version": "15.7.15",
      "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.15.tgz",
      "integrity": "sha512-F6bEyamV9jKGAFBEmlQnesRPGOQqS2+Uwi0Em15xenOxHaf2hv6L8YCVn3rPdPJOiJfPiCnLIRyvwVaqMY3MIw==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-types-prop-types-typescript-version",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "@types/prop-types": "15.7.15"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @types/prop-types.typeScriptVersion in pkg:npm/%40types/prop-types@15.7.15",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40types/prop-types@15.7.15"
  ],
  "symbols": [
    "@types/prop-types.typeScriptVersion"
  ]
}

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

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

// 1. @types/prop-types package.json declares typeScriptVersion property with value "5.1"
const pkgJsonPath = require.resolve('@types/prop-types/package.json');
assert.ok(fs.existsSync(pkgJsonPath));
const pkgJson = JSON.parse(fs.readFileSync(pkgJsonPath, 'utf8'));

assert.equal(pkgJson.typeScriptVersion, '5.1');
assert.equal(typeof pkgJson.typeScriptVersion, 'string');

// 2. @types/prop-types package.json typeScriptVersion is accessible via package manifest resolution
assert.equal(pkgJson.name, '@types/prop-types');
assert.ok('typeScriptVersion' in pkgJson);

// 3. @types/prop-types package.json typeScriptVersion format is valid major.minor version string matching semver pattern
assert.match(pkgJson.typeScriptVersion, /^\d+\.\d+$/);
const [tsMajor, tsMinor] = pkgJson.typeScriptVersion.split('.').map(Number);
assert.ok(tsMajor >= 5);
assert.ok(tsMinor >= 1);

// 4. @types/prop-types package manifest pairs typeScriptVersion "5.1" with types entry point "index.d.ts" and package version "15.7.15"
assert.equal(pkgJson.types, 'index.d.ts');
assert.equal(pkgJson.version, '15.7.15');

// 5. @types/prop-types index.d.ts exists and declares TypeScript definitions compatible with typeScriptVersion "5.1"
const dtsPath = require.resolve('@types/prop-types/index.d.ts');
assert.ok(fs.existsSync(dtsPath));
const dtsContent = fs.readFileSync(dtsPath, 'utf8');
assert.ok(dtsContent.includes('export = PropTypes;'));
assert.ok(dtsContent.includes('declare namespace PropTypes {'));

console.log('Contract tests for @types/prop-types.typeScriptVersion passed.');