vite-node 2.1.9: KNOWN_ASSET_RE

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 vite-node.KNOWN_ASSET_RE in pkg:npm/vite-node@2.1.9
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/vite-node@2.1.9
Demonstrate these symbols/APIs:
  - vite-node.KNOWN_ASSET_RE

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:d09f578854fc06b6b7a9c287944f39090e70da27ffd6a2c31426d5e2596936ff","contract":["KNOWN_ASSET_RE is a regular expression exported from vite-node/constants","KNOWN_ASSET_RE matches image file extensions including png, jpg, jpeg, svg, webp, and gif","KNOWN_ASSET_RE matches media file extensions including mp4, webm, ogg, mp3, wav, flac, and aac","KNOWN_ASSET_RE matches font file extensions including woff, woff2, eot, ttf, and otf","KNOWN_ASSET_RE matches document and other asset extensions including pdf, webmanifest, and txt","KNOWN_ASSET_RE rejects source code files, style files, query strings, and extensionless paths"],"goal":"verify vite-node.KNOWN_ASSET_RE in pkg:npm/vite-node@2.1.9","kind":"HOW","packages":["pkg:npm/vite-node@2.1.9"],"schemaVersion":1,"symbols":["vite-node.KNOWN_ASSET_RE"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/vite-node@2.1.9"],"schemaVersion":1,"subject":"pkg:npm/vite-node@2.1.9","symbols":["vite-node.KNOWN_ASSET_RE"],"verifierAdapter":"node-typescript@1"}

import { KNOWN_ASSET_RE, KNOWN_ASSET_TYPES } from 'vite-node/constants';

/**
 * Determines whether a given file path or specifier ends with a recognized asset extension.
 *
 * @param {string} filepath - Path or specifier to check.
 * @returns {boolean} True if the path ends with a recognized asset extension.
 */
export function isKnownAsset(filepath) {
  return KNOWN_ASSET_RE.test(filepath);
}

/**
 * Returns the immutable list of known asset file extensions.
 *
 * @returns {string[]} Array of asset file extensions.
 */
export function getKnownAssetTypes() {
  return KNOWN_ASSET_TYPES;
}

export { KNOWN_ASSET_RE, KNOWN_ASSET_TYPES };

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        "lightningcss": {
          "optional": true
        },
        "sass": {
          "optional": true
        },
        "sass-embedded": {
          "optional": true
        },
        "stylus": {
          "optional": true
        },
        "sugarss": {
          "optional": true
        },
        "terser": {
          "optional": true
        }
      }
    },
    "node_modules/vite-node": {
      "version": "2.1.9",
      "resolved": "https://registry.npmjs.org/vite-node/-/vite-node-2.1.9.tgz",
      "integrity": "sha512-AM9aQ/IPrW/6ENLQg3AGY4K1N2TGZdR5e4gu/MmmR2xR3Ll1+dib+nook92g4TV3PXVyeyxdWwtaCAiUL0hMxA==",
      "license": "MIT",
      "dependencies": {
        "cac": "^6.7.14",
        "debug": "^4.3.7",
        "es-module-lexer": "^1.5.4",
        "pathe": "^1.1.2",
        "vite": "^5.0.0"
      },
      "bin": {
        "vite-node": "vite-node.mjs"
      },
      "engines": {
        "node": "^18.0.0 || >=20.0.0"
      },
      "funding": {
        "url": "https://opencollective.com/vitest"
      }
    }
  }
}

{
  "name": "sample-vite-node-known-asset-re",
  "version": "1.0.0",
  "type": "module",
  "main": "index.mjs",
  "license": "MIT-0",
  "dependencies": {
    "vite-node": "2.1.9"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify vite-node.KNOWN_ASSET_RE in pkg:npm/vite-node@2.1.9",
  "kind": "HOW",
  "packages": [
    "pkg:npm/vite-node@2.1.9"
  ],
  "symbols": [
    "vite-node.KNOWN_ASSET_RE"
  ]
}

import assert from 'node:assert/strict';
import { KNOWN_ASSET_RE, KNOWN_ASSET_TYPES } from 'vite-node/constants';
import { isKnownAsset, getKnownAssetTypes } from '../index.mjs';

// 1. KNOWN_ASSET_RE is a regular expression exported from vite-node/constants
assert.ok(KNOWN_ASSET_RE instanceof RegExp, 'KNOWN_ASSET_RE must be an instance of RegExp');
assert.ok(Array.isArray(KNOWN_ASSET_TYPES), 'KNOWN_ASSET_TYPES must be an array');
assert.ok(Array.isArray(getKnownAssetTypes()), 'getKnownAssetTypes must return an array');
assert.deepStrictEqual(getKnownAssetTypes(), KNOWN_ASSET_TYPES, 'getKnownAssetTypes must match KNOWN_ASSET_TYPES');

// 2. KNOWN_ASSET_RE matches image file extensions including png, jpg, jpeg, svg, webp, and gif
const sampleImages = [
  'image.png',
  'photo.jpg',
  'picture.jpeg',
  'icon.svg',
  'banner.webp',
  'animation.gif',
  'favicon.ico',
  'graphic.bmp',
  'photo.avif',
  'image.apng',
  'photo.jfif',
  'photo.pjpeg',
  'photo.pjp',
];
for (const file of sampleImages) {
  assert.strictEqual(KNOWN_ASSET_RE.test(file), true, `Expected ${file} to match KNOWN_ASSET_RE`);
  assert.strictEqual(isKnownAsset(file), true, `Expected isKnownAsset(${file}) to return true`);
}

// 3. KNOWN_ASSET_RE matches media file extensions including mp4, webm, ogg, mp3, wav, flac, and aac
const sampleMedia = [
  'video.mp4',
  'video.webm',
  'audio.ogg',
  'track.mp3',
  'sound.wav',
  'music.flac',
  'audio.aac',
];
for (const file of sampleMedia) {
  assert.strictEqual(KNOWN_ASSET_RE.test(file), true, `Expected ${file} to match KNOWN_ASSET_RE`);
  assert.strictEqual(isKnownAsset(file), true, `Expected isKnownAsset(${file}) to return true`);
}

// 4. KNOWN_ASSET_RE matches font file extensions including woff, woff2, eot, ttf, and otf
const sampleFonts = [
  'font.woff',
  'font.woff2',
  'font.eot',
  'font.ttf',
  'font.otf',
];
for (const file of sampleFonts) {
  assert.strictEqual(KNOWN_ASSET_RE.test(file), true, `Expected ${file} to match KNOWN_ASSET_RE`);
  assert.strictEqual(isKnownAsset(file), true, `Expected isKnownAsset(${file}) to return true`);
}

// 5. KNOWN_ASSET_RE matches document and other asset extensions including pdf, webmanifest, and txt
const sampleDocs = [
  'document.pdf',
  'site.webmanifest',
  'readme.txt',
];
for (const file of sampleDocs) {
  assert.strictEqual(KNOWN_ASSET_RE.test(file), true, `Expected ${file} to match KNOWN_ASSET_RE`);
  assert.strictEqual(isKnownAsset(file), true, `Expected isKnownAsset(${file}) to return true`);
}

// 6. KNOWN_ASSET_RE rejects source code files, style files, query strings, and extensionless paths
const nonAssets = [
  'index.js',
  'server.ts',
  'component.jsx',
  'view.tsx',
  'config.json',
  'style.css',
  'theme.scss',
  'layout.less',
  'image.png?url',
  'photo.jpg?import',
  'video.mp4#t=10',
  'noextension',
  'folder/file',
  '',
];
for (const file of nonAssets) {
  assert.strictEqual(KNOWN_ASSET_RE.test(file), false, `Expected ${file} to NOT match KNOWN_ASSET_RE`);
  assert.strictEqual(isKnownAsset(file), false, `Expected isKnownAsset(${file}) to return false`);
}

console.log('All contract assertions for vite-node.KNOWN_ASSET_RE passed.');