resolve-cwd 3.0.0: resolve module path from current working directory or return undefined silently

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: resolve module path from current working directory or return undefined silently
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/resolve-cwd@3.0.0
Demonstrate these symbols/APIs:
  - resolveCwd
  - resolveCwd.silent

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:de79658d54cf23daa19731dfd35f04b4cb14452b3e1f11ef3925758ce4fcbdf5","contract":["assert resolveCwd resolves existing module path relative to current working directory","assert resolveCwd resolves installed package module from current working directory","assert resolveCwd throws MODULE_NOT_FOUND error when target module does not exist","assert resolveCwd.silent returns absolute path for existing module relative to current working directory","assert resolveCwd.silent returns undefined without throwing for non-existent module"],"goal":"resolve module path from current working directory or return undefined silently","kind":"HOW","packages":["pkg:npm/resolve-cwd@3.0.0"],"schemaVersion":1,"symbols":["resolveCwd","resolveCwd.silent"]},"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/resolve-cwd@3.0.0"],"schemaVersion":1,"subject":"pkg:npm/resolve-cwd@3.0.0","symbols":["resolveCwd","resolveCwd.silent"],"verifierAdapter":"node-typescript@1"}

const resolveCwd = require('resolve-cwd');

/**
 * Resolves the path of a module from the current working directory.
 * Throws MODULE_NOT_FOUND error if the module cannot be resolved.
 *
 * @param {string} moduleId - The module identifier or relative path to resolve.
 * @returns {string} The resolved absolute file path.
 */
function resolveFromCurrentDir(moduleId) {
  return resolveCwd(moduleId);
}

/**
 * Resolves the path of a module from the current working directory silently.
 * Returns undefined instead of throwing if the module cannot be resolved.
 *
 * @param {string} moduleId - The module identifier or relative path to resolve.
 * @returns {string | undefined} The resolved absolute file path or undefined.
 */
function resolveFromCurrentDirSilent(moduleId) {
  return resolveCwd.silent(moduleId);
}

module.exports = {
  resolveFromCurrentDir,
  resolveFromCurrentDirSilent,
  resolveCwd,
};

{
  "name": "sample-resolve-cwd",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-resolve-cwd",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "resolve-cwd": "3.0.0"
      }
    },
    "node_modules/resolve-cwd": {
      "version": "3.0.0",
      "resolved": "https://registry.npmjs.org/resolve-cwd/-/resolve-cwd-3.0.0.tgz",
      "integrity": "sha512-OrZaX2Mb+rJCpH/6CpSqt9xFVpN++x01XnN2ie9g6P5/3xelLAkXWVADpdz1IHD/KFfEXyE6V0U01OQ3UO2rEg==",
      "license": "MIT",
      "dependencies": {
        "resolve-from": "^5.0.0"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/resolve-from": {
      "version": "5.0.0",
      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
      "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
      "license": "MIT",
      "engines": {
        "node": ">=8"
      }
    }
  }
}

{
  "name": "sample-resolve-cwd",
  "version": "1.0.0",
  "description": "Clean-room sample demonstrating resolve-cwd module resolution from current working directory",
  "main": "index.js",
  "license": "MIT-0",
  "dependencies": {
    "resolve-cwd": "3.0.0"
  }
}

{
  "schemaVersion": 1,
  "goal": "resolve module path from current working directory or return undefined silently",
  "kind": "HOW",
  "packages": [
    "pkg:npm/resolve-cwd@3.0.0"
  ],
  "symbols": [
    "resolveCwd",
    "resolveCwd.silent"
  ]
}

import assert from 'node:assert';
import path from 'node:path';
import resolveCwd from 'resolve-cwd';
import { resolveFromCurrentDir, resolveFromCurrentDirSilent } from '../index.js';

// 1. Verify resolveCwd resolves an existing relative file from the current working directory
const expectedPackageJsonPath = path.resolve(process.cwd(), 'package.json');
const resolvedPkg = resolveCwd('./package.json');
assert.strictEqual(resolvedPkg, expectedPackageJsonPath, 'resolveCwd must resolve relative package.json to its absolute path');

const helperResolvedPkg = resolveFromCurrentDir('./package.json');
assert.strictEqual(helperResolvedPkg, expectedPackageJsonPath, 'resolveFromCurrentDir must resolve relative package.json to its absolute path');

// 2. Verify resolveCwd resolves an installed package from cwd
const resolvedPackage = resolveCwd('resolve-cwd');
assert.strictEqual(typeof resolvedPackage, 'string', 'resolveCwd must resolve installed package to a string path');
assert.ok(resolvedPackage.includes('resolve-cwd'), 'Resolved path must contain package name');

// 3. Verify resolveCwd throws MODULE_NOT_FOUND error when the module does not exist
assert.throws(
  () => {
    resolveCwd('./non-existent-module-xyz.js');
  },
  (err) => {
    assert.strictEqual(err.code, 'MODULE_NOT_FOUND', 'resolveCwd must throw error with code MODULE_NOT_FOUND for missing module');
    return true;
  },
  'resolveCwd must throw MODULE_NOT_FOUND for non-existent module'
);

assert.throws(
  () => {
    resolveFromCurrentDir('./non-existent-module-xyz.js');
  },
  (err) => {
    assert.strictEqual(err.code, 'MODULE_NOT_FOUND', 'resolveFromCurrentDir must throw error with code MODULE_NOT_FOUND for missing module');
    return true;
  },
  'resolveFromCurrentDir must throw MODULE_NOT_FOUND for non-existent module'
);

// 4. Verify resolveCwd.silent returns absolute path for an existing relative file
const silentResolvedPkg = resolveCwd.silent('./package.json');
assert.strictEqual(silentResolvedPkg, expectedPackageJsonPath, 'resolveCwd.silent must resolve existing relative module');

const helperSilentResolvedPkg = resolveFromCurrentDirSilent('./package.json');
assert.strictEqual(helperSilentResolvedPkg, expectedPackageJsonPath, 'resolveFromCurrentDirSilent must resolve existing relative module');

// 5. Verify resolveCwd.silent returns undefined without throwing for non-existent module
const silentMissing = resolveCwd.silent('./non-existent-module-xyz.js');
assert.strictEqual(silentMissing, undefined, 'resolveCwd.silent must return undefined for non-existent module');

const helperSilentMissing = resolveFromCurrentDirSilent('./non-existent-module-xyz.js');
assert.strictEqual(helperSilentMissing, undefined, 'resolveFromCurrentDirSilent must return undefined for non-existent module');

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