unicode-match-property-ecmascript 2.0.0

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/unicode-match-property-ecmascript@2.0.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/unicode-match-property-ecmascript@2.0.0

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:sha256:72e7ffd1377f6038c41e26cd6013e7c2d266bee3d30d8882af2ebf2b74a0b9d9","contract":["matchProperty returns canonical property name when given a canonical property name directly","matchProperty resolves short property aliases to their canonical ECMAScript property names","matchProperty resolves binary property aliases to their canonical ECMAScript property names","matchProperty throws an Error with Unknown property message when given an unknown property name","matchProperty enforces strict case-sensitivity and throws an Error for incorrect casing"],"goal":"verify pkg:npm/unicode-match-property-ecmascript@2.0.0","kind":"HOW","packages":["pkg:npm/unicode-match-property-ecmascript@2.0.0"],"schemaVersion":1},"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/unicode-match-property-ecmascript@2.0.0"],"schemaVersion":1,"subject":"pkg:npm/unicode-match-property-ecmascript@2.0.0","verifierAdapter":"node-typescript@1"}

import matchProperty from 'unicode-match-property-ecmascript';

/**
 * Match a Unicode property name or alias to its canonical ECMAScript property name.
 *
 * @param {string} property - Unicode property name or alias
 * @returns {string} Canonical ECMAScript property name
 */
export function getCanonicalPropertyName(property) {
  return matchProperty(property);
}

export { matchProperty };
export default matchProperty;

{
  "name": "sample-unicode-match-property-ecmascript",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-unicode-match-property-ecmascript",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "unicode-match-property-ecmascript": "2.0.0"
      }
    },
    "node_modules/unicode-canonical-property-names-ecmascript": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-2.0.1.tgz",
      "integrity": "sha512-dA8WbNeb2a6oQzAQ55YlT5vQAWGV9WXOsi3SskE3bcCdM0P4SDd+24zS/OCacdRq5BkdsRj9q3Pg6YyQoxIGqg==",
      "license": "MIT",
      "engines": {
        "node": ">=4"
      }
    },
    "node_modules/unicode-match-property-ecmascript": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/unicode-match-property-ecmascript/-/unicode-match-property-ecmascript-2.0.0.tgz",
      "integrity": "sha512-5kaZCrbp5mmbz5ulBkDkbY0SsPOjKqVS35VpL9ulMPfSl0J0Xsm+9Evphv9CoIZFwre7aJoa94AY6seMKGVN5Q==",
      "license": "MIT",
      "dependencies": {
        "unicode-canonical-property-names-ecmascript": "^2.0.0",
        "unicode-property-aliases-ecmascript": "^2.0.0"
      },
      "engines": {
        "node": ">=4"
      }
    },
    "node_modules/unicode-property-aliases-ecmascript": {
      "version": "2.2.0",
      "resolved": "https://registry.npmjs.org/unicode-property-aliases-ecmascript/-/unicode-property-aliases-ecmascript-2.2.0.tgz",
      "integrity": "sha512-hpbDzxUY9BFwX+UeBnxv3Sh1q7HFxj48DTmXchNgRa46lO8uj3/1iEn3MiNUYTg1g9ctIqXCCERn8gYZhHC5lQ==",
      "license": "MIT",
      "engines": {
        "node": ">=4"
      }
    }
  }
}

{
  "name": "sample-unicode-match-property-ecmascript",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "description": "verify pkg:npm/unicode-match-property-ecmascript@2.0.0",
  "main": "index.mjs",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "unicode-match-property-ecmascript": "2.0.0"
  },
  "license": "MIT-0"
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/unicode-match-property-ecmascript@2.0.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/unicode-match-property-ecmascript@2.0.0"
  ]
}

import assert from 'node:assert/strict';
import matchProperty from 'unicode-match-property-ecmascript';
import { getCanonicalPropertyName } from '../index.mjs';

// 1. matchProperty returns canonical property name when given a canonical property name directly
{
  assert.equal(matchProperty('Script'), 'Script');
  assert.equal(matchProperty('General_Category'), 'General_Category');
  assert.equal(matchProperty('Script_Extensions'), 'Script_Extensions');
  assert.equal(matchProperty('ASCII_Hex_Digit'), 'ASCII_Hex_Digit');
  assert.equal(getCanonicalPropertyName('Script'), 'Script');
  assert.equal(getCanonicalPropertyName('General_Category'), 'General_Category');
}

// 2. matchProperty resolves short property aliases to their canonical ECMAScript property names
{
  assert.equal(matchProperty('sc'), 'Script');
  assert.equal(matchProperty('gc'), 'General_Category');
  assert.equal(matchProperty('scx'), 'Script_Extensions');
  assert.equal(getCanonicalPropertyName('sc'), 'Script');
  assert.equal(getCanonicalPropertyName('gc'), 'General_Category');
  assert.equal(getCanonicalPropertyName('scx'), 'Script_Extensions');
}

// 3. matchProperty resolves binary property aliases to their canonical ECMAScript property names
{
  assert.equal(matchProperty('AHex'), 'ASCII_Hex_Digit');
  assert.equal(matchProperty('ASCII'), 'ASCII');
  assert.equal(matchProperty('Any'), 'Any');
  assert.equal(matchProperty('Assigned'), 'Assigned');
  assert.equal(matchProperty('IDS'), 'ID_Start');
  assert.equal(getCanonicalPropertyName('AHex'), 'ASCII_Hex_Digit');
  assert.equal(getCanonicalPropertyName('IDS'), 'ID_Start');
}

// 4. matchProperty throws an Error with Unknown property message when given an unknown property name
{
  assert.throws(
    () => matchProperty('unknown_property'),
    {
      name: 'Error',
      message: 'Unknown property: unknown_property'
    }
  );
  assert.throws(
    () => getCanonicalPropertyName('invalid_alias'),
    {
      name: 'Error',
      message: 'Unknown property: invalid_alias'
    }
  );
}

// 5. matchProperty enforces strict case-sensitivity and throws an Error for incorrect casing
{
  assert.throws(
    () => matchProperty('script'),
    {
      name: 'Error',
      message: 'Unknown property: script'
    }
  );
  assert.throws(
    () => matchProperty('general_category'),
    {
      name: 'Error',
      message: 'Unknown property: general_category'
    }
  );
  assert.throws(
    () => getCanonicalPropertyName('SC'),
    {
      name: 'Error',
      message: 'Unknown property: SC'
    }
  );
}

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