path-parse 1.0.7

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/path-parse@1.0.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/path-parse@1.0.7
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - 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:a4bca1a6132da572af67c38edc3d95f3d4b78f5f17f9d973db3760d456fdafbc","constraints":{"executionContext":"node"},"contract":["pathParse parses POSIX file paths into root, dir, base, ext, and name components","pathParse.posix parses POSIX file paths and correctly separates extension and basename","pathParse.win32 parses Windows file paths with directory separators and extensions","pathParse handles relative paths, paths without file extensions, and directory paths","pathParse handles hidden dotfiles without treating the leading dot as an extension","pathParse throws a TypeError when the input path is not a string"],"goal":"verify pkg:npm/path-parse@1.0.7","kind":"HOW","packages":["pkg:npm/path-parse@1.0.7"],"schemaVersion":1},"contractCommand":["node","test/contract.js"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/path-parse@1.0.7"],"schemaVersion":1,"subject":"pkg:npm/path-parse@1.0.7","verifierAdapter":"node-typescript@1"}

{
  "name": "sample-path-parse",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-path-parse",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "path-parse": "1.0.7"
      }
    },
    "node_modules/path-parse": {
      "version": "1.0.7",
      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-path-parse",
  "version": "1.0.0",
  "description": "verify pkg:npm/path-parse@1.0.7",
  "main": "src/index.js",
  "scripts": {
    "test": "node test/contract.js"
  },
  "dependencies": {
    "path-parse": "1.0.7"
  },
  "license": "MIT-0"
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/path-parse@1.0.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/path-parse@1.0.7"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "runtime": "node@22.23.2"
  }
}

'use strict';

const pathParse = require('path-parse');

/**
 * Parses a file path into its constituent parts (root, dir, base, ext, name).
 *
 * @param {string} pathString - The file path to parse.
 * @returns {object} The parsed path object.
 */
function parsePath(pathString) {
  return pathParse(pathString);
}

/**
 * Explicitly parses a POSIX file path.
 *
 * @param {string} pathString - The POSIX file path.
 * @returns {object} The parsed path object.
 */
function parsePosixPath(pathString) {
  return pathParse.posix(pathString);
}

/**
 * Explicitly parses a Windows file path.
 *
 * @param {string} pathString - The Windows file path.
 * @returns {object} The parsed path object.
 */
function parseWin32Path(pathString) {
  return pathParse.win32(pathString);
}

module.exports = {
  pathParse,
  parsePath,
  parsePosixPath,
  parseWin32Path
};

'use strict';

const assert = require('assert');
const {
  pathParse,
  parsePath,
  parsePosixPath,
  parseWin32Path
} = require('../src/index');

// 1. pathParse parses POSIX file paths into root, dir, base, ext, and name components
{
  const result = parsePosixPath('app/data/report.pdf');
  assert.strictEqual(typeof result, 'object');
  assert.strictEqual(result.root, '');
  assert.strictEqual(result.dir, 'app/data');
  assert.strictEqual(result.base, 'report.pdf');
  assert.strictEqual(result.ext, '.pdf');
  assert.strictEqual(result.name, 'report');
}

// 2. pathParse.posix parses POSIX file paths and correctly separates extension and basename
{
  const result = parsePosixPath('fixtures/logs/access.log.gz');
  assert.strictEqual(result.root, '');
  assert.strictEqual(result.dir, 'fixtures/logs');
  assert.strictEqual(result.base, 'access.log.gz');
  assert.strictEqual(result.ext, '.gz');
  assert.strictEqual(result.name, 'access.log');
}

// 3. pathParse.win32 parses Windows file paths with directory separators and extensions
{
  const result = parseWin32Path('workspace\\project\\index.js');
  assert.strictEqual(result.root, '');
  assert.strictEqual(result.dir, 'workspace\\project');
  assert.strictEqual(result.base, 'index.js');
  assert.strictEqual(result.ext, '.js');
  assert.strictEqual(result.name, 'index');
}

// 4. pathParse handles relative paths, paths without file extensions, and directory paths
{
  const rel = parsePosixPath('src/components/button.jsx');
  assert.strictEqual(rel.root, '');
  assert.strictEqual(rel.dir, 'src/components');
  assert.strictEqual(rel.base, 'button.jsx');
  assert.strictEqual(rel.ext, '.jsx');
  assert.strictEqual(rel.name, 'button');

  const noExt = parsePosixPath('configs/hosts');
  assert.strictEqual(noExt.root, '');
  assert.strictEqual(noExt.dir, 'configs');
  assert.strictEqual(noExt.base, 'hosts');
  assert.strictEqual(noExt.ext, '');
  assert.strictEqual(noExt.name, 'hosts');

  const dirOnly = parsePosixPath('data/records/');
  assert.strictEqual(dirOnly.root, '');
  assert.strictEqual(dirOnly.dir, 'data/records');
  assert.strictEqual(dirOnly.base, '');
  assert.strictEqual(dirOnly.ext, '');
  assert.strictEqual(dirOnly.name, '');
}

// 5. pathParse handles hidden dotfiles without treating the leading dot as an extension
{
  const dotfile = parsePosixPath('configs/.gitignore');
  assert.strictEqual(dotfile.root, '');
  assert.strictEqual(dotfile.dir, 'configs');
  assert.strictEqual(dotfile.base, '.gitignore');
  assert.strictEqual(dotfile.ext, '');
  assert.strictEqual(dotfile.name, '.gitignore');
}

// 6. pathParse throws a TypeError when the input path is not a string
{
  assert.throws(() => {
    parsePath(12345);
  }, /^TypeError: Parameter 'pathString' must be a string/);

  assert.throws(() => {
    parsePath(null);
  }, /^TypeError: Parameter 'pathString' must be a string/);

  assert.throws(() => {
    parsePosixPath({});
  }, /^TypeError: Parameter 'pathString' must be a string/);

  assert.throws(() => {
    parseWin32Path(undefined);
  }, /^TypeError: Parameter 'pathString' must be a string/);
}

console.log('All path-parse contract tests passed.');