pvutils 1.2.0: getUTCDate

audit=false
fund=false

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 pvutils.getUTCDate in pkg:npm/pvutils@1.2.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/pvutils@1.2.0
Demonstrate these symbols/APIs:
  - pvutils.getUTCDate

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:sha256:417db21a6a1118c8363eadc8523eeb743cbfbf01a88f49ee73c1c919048ad832","constraints":{"executionContext":"node"},"contract":["assert pvutils.getUTCDate returns a new Date instance","assert pvutils.getUTCDate local hours match the input date UTC hours","assert pvutils.getUTCDate local year, month, and day of month match the input date UTC calendar components","assert pvutils.getUTCDate local minutes, seconds, and milliseconds match the input date UTC time components","assert pvutils.getUTCDate does not mutate the original Date object"],"goal":"verify pvutils.getUTCDate in pkg:npm/pvutils@1.2.0","kind":"HOW","packages":["pkg:npm/pvutils@1.2.0"],"schemaVersion":1,"symbols":["pvutils.getUTCDate"]},"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/pvutils@1.2.0"],"schemaVersion":1,"subject":"pkg:npm/pvutils@1.2.0","symbols":["pvutils.getUTCDate"],"verifierAdapter":"node-typescript@1"}

const pvutils = require('pvutils');

function getUTCDate(date) {
  return pvutils.getUTCDate(date);
}

module.exports = {
  pvutils,
  getUTCDate,
};

{
  "name": "sample-pvutils",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-pvutils",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "pvutils": "1.2.0"
      }
    },
    "node_modules/pvutils": {
      "version": "1.2.0",
      "resolved": "https://registry.npmjs.org/pvutils/-/pvutils-1.2.0.tgz",
      "integrity": "sha512-BbubeCEyTuQjVMakvJQ/Sxbc93F2pwmbsxONT/ZRrwU7Ua38d8unYTwXpTVLAKJ4BDuH9IGztCjQcd/N/39Dvg==",
      "license": "MIT",
      "engines": {
        "node": ">=16.0.0"
      }
    }
  }
}

{
  "name": "sample-pvutils",
  "version": "1.0.0",
  "description": "Minimal clean-room sample verifying pvutils.getUTCDate in pvutils",
  "main": "index.js",
  "license": "MIT-0",
  "dependencies": {
    "pvutils": "1.2.0"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify pvutils.getUTCDate in pkg:npm/pvutils@1.2.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/pvutils@1.2.0"
  ],
  "symbols": [
    "pvutils.getUTCDate"
  ]
}

import assert from 'node:assert';
import pvutils from 'pvutils';
import { getUTCDate } from '../index.js';

// 1. pvutils.getUTCDate returns a new Date instance
const original = new Date('2026-09-05T14:30:15.500Z');
const utcD = getUTCDate(original);
assert(utcD instanceof Date, 'getUTCDate must return a Date instance');
assert.notStrictEqual(utcD, original, 'getUTCDate must return a new Date instance');

// 2. pvutils.getUTCDate local hours match the input date UTC hours
assert.strictEqual(utcD.getHours(), original.getUTCHours(), 'Local hours must match UTC hours');

// 3. pvutils.getUTCDate local year, month, and day of month match the input date UTC calendar components
assert.strictEqual(utcD.getFullYear(), original.getUTCFullYear(), 'Local full year must match UTC full year');
assert.strictEqual(utcD.getMonth(), original.getUTCMonth(), 'Local month must match UTC month');
assert.strictEqual(utcD.getDate(), original.getUTCDate(), 'Local date must match UTC date');
assert.strictEqual(utcD.getDay(), original.getUTCDay(), 'Local day of week must match UTC day of week');

// 4. pvutils.getUTCDate local minutes, seconds, and milliseconds match the input date UTC time components
assert.strictEqual(utcD.getMinutes(), original.getUTCMinutes(), 'Local minutes must match UTC minutes');
assert.strictEqual(utcD.getSeconds(), original.getUTCSeconds(), 'Local seconds must match UTC seconds');
assert.strictEqual(utcD.getMilliseconds(), original.getUTCMilliseconds(), 'Local milliseconds must match UTC milliseconds');

// 5. pvutils.getUTCDate does not mutate the original Date object
const origTime = original.getTime();
getUTCDate(original);
assert.strictEqual(original.getTime(), origTime, 'Original date timestamp must not be mutated');

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