CodeSampleX

Ejemplo

jest-haste-map 29.7.0: crawl files and build haste map with JestHasteMap

Muestra verificada para npm jest-haste-map 29.7.0: crawl files and build haste map with JestHasteMap. El contrato se ejecutó en node 22 · linux alpine/x64 …

sha256:4b90f9873b3f0f4c8e4d4cbc3ef9e3af98c47981a59fde8ee5372f92b20781dd

Esta red ofrece una sola cosa: una muestra que compila. La ejecutó en un sandbox y guardó el recibo firmado. No califica ni garantiza nada: si el mismo código compila donde estás no es algo que haya medido. Cuántas claves de firma distintas presentaron un recibo de contrato aprobado. Una es solo el autor; más de una significa que alguien más también lo compiló. Una clave se genera sola y no tiene identidad registrada detrás, así que cuenta claves, no personas. MIT-0

Evidencia de ejecución

El entorno declarado y las ejecuciones firmadas se muestran por separado, para que veas exactamente qué ejecutó esta muestra y dónde.

Base de evidencia
Contrato firmado aprobado
Recibos de verificación
1
Claves de firma que lo compilaron
1
Entorno declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Entornos de las ejecuciones de verificación

Entorno Contrato Etapas Ejecución
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-27

Caso

HOW
Objetivo
crawl files and build haste map with JestHasteMap
Paquetes
Símbolos
  • HasteMap.build
  • HasteMap.create
Creado
2026-08-27T12:18:21Z

Contrato

  1. HasteMap.create instantiates a file crawler with specified roots and extensions
  2. HasteMap.prototype.build crawls target directory and returns hasteFS and moduleMap
  3. hasteFS.getAllFiles returns indexed file paths in the crawled directory
  4. hasteFS.exists verifies presence of indexed files and absence of missing files
  5. hasteFS.matchFiles filters indexed files matching a regular expression

Archivos

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.mjs

Descargar el artefacto de código fuente (tar.gz)

Código fuente

PROMPT.md
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: crawl files and build haste map with JestHasteMap
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/jest-haste-map@29.7.0
Demonstrate these symbols/APIs:
  - HasteMap.build
  - HasteMap.create

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.
csx.json
{"case":{"caseId":"case:sha256:e580d0faf8ac192e7e51c02293871cde689d60e3e4c936a9fc72db51181d3bf0","contract":["HasteMap.create instantiates a file crawler with specified roots and extensions","HasteMap.prototype.build crawls target directory and returns hasteFS and moduleMap","hasteFS.getAllFiles returns indexed file paths in the crawled directory","hasteFS.exists verifies presence of indexed files and absence of missing files","hasteFS.matchFiles filters indexed files matching a regular expression"],"goal":"crawl files and build haste map with JestHasteMap","kind":"HOW","packages":["pkg:npm/jest-haste-map@29.7.0"],"schemaVersion":1,"symbols":["HasteMap.build","HasteMap.create"]},"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/jest-haste-map@29.7.0"],"schemaVersion":1,"subject":"pkg:npm/jest-haste-map@29.7.0","symbols":["HasteMap.build","HasteMap.create"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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      "name": "sample-jest-haste-map-crawl",
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      }
    },
    "node_modules/@jest/schemas": {
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package.json
{
  "name": "sample-jest-haste-map-crawl",
  "version": "1.0.0",
  "private": true,
  "description": "Clean-room verification of jest-haste-map crawling and indexing",
  "main": "src/index.js",
  "license": "MIT-0",
  "dependencies": {
    "jest-haste-map": "29.7.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "crawl files and build haste map with JestHasteMap",
  "kind": "HOW",
  "packages": [
    "pkg:npm/jest-haste-map@29.7.0"
  ],
  "symbols": [
    "HasteMap.build",
    "HasteMap.create"
  ]
}
src/index.js
const HasteMapPkg = require('jest-haste-map');

const HasteMap = HasteMapPkg.default || HasteMapPkg;

/**
 * Creates and initializes a HasteMap instance for file crawling and indexing.
 * @param {object} options
 * @param {string} options.rootDir - Root directory of the project.
 * @param {string[]} [options.roots] - Directories to crawl.
 * @param {string[]} [options.extensions] - File extensions to index.
 * @param {number} [options.maxWorkers] - Number of worker threads.
 * @param {string} [options.name] - Cache identifier name.
 * @returns {Promise<object>} HasteMap instance.
 */
async function createHasteMap(options) {
  const {
    rootDir,
    roots = [rootDir],
    extensions = ['js', 'json', 'ts'],
    maxWorkers = 1,
    name = 'haste-crawler'
  } = options;

  return HasteMap.create({
    extensions,
    maxWorkers,
    name,
    platforms: [],
    rootDir,
    roots,
    useWatchman: false,
    watch: false
  });
}

/**
 * Crawls the directory structure and builds the Haste file system and module map.
 * @param {object} hasteMap - HasteMap instance.
 * @returns {Promise<{hasteFS: object, moduleMap: object}>}
 */
async function buildHasteMap(hasteMap) {
  return hasteMap.build();
}

module.exports = {
  HasteMap,
  createHasteMap,
  buildHasteMap
};
test/contract.mjs
import { strict as assert } from 'node:assert';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);
const { HasteMap, createHasteMap, buildHasteMap } = require('../src/index.js');

// 1. Export verification
assert.strictEqual(typeof HasteMap.create, 'function', 'HasteMap.create must be a function');
assert.strictEqual(typeof createHasteMap, 'function', 'createHasteMap must be a function');
assert.strictEqual(typeof buildHasteMap, 'function', 'buildHasteMap must be a function');

// 2. Create isolated temporary workspace for indexing
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'haste-sample-'));

try {
  const subDir = path.join(tempDir, 'src');
  fs.mkdirSync(subDir, { recursive: true });

  const fileAlpha = path.join(subDir, 'alpha.js');
  const fileBeta = path.join(subDir, 'beta.ts');
  const fileConfig = path.join(tempDir, 'config.json');

  fs.writeFileSync(fileAlpha, 'module.exports = { name: "alpha" };\n');
  fs.writeFileSync(fileBeta, 'export const beta = 100;\n');
  fs.writeFileSync(fileConfig, '{"enabled": true}\n');

  // 3. Create HasteMap instance
  const hasteMap = await createHasteMap({
    rootDir: tempDir,
    roots: [tempDir],
    extensions: ['js', 'ts', 'json'],
    maxWorkers: 1,
    name: 'contract-test-map'
  });

  assert.strictEqual(typeof hasteMap.build, 'function', 'hasteMap instance must have build method');

  // 4. Build file map and module map
  const { hasteFS, moduleMap } = await buildHasteMap(hasteMap);

  assert.ok(hasteFS, 'hasteFS must be defined');
  assert.ok(moduleMap, 'moduleMap must be defined');

  // 5. Query indexed files
  const allFiles = hasteFS.getAllFiles();
  assert.strictEqual(allFiles.length, 3, 'hasteFS must index all 3 created files');

  assert.strictEqual(hasteFS.exists(fileAlpha), true, 'fileAlpha should exist in hasteFS');
  assert.strictEqual(hasteFS.exists(fileBeta), true, 'fileBeta should exist in hasteFS');
  assert.strictEqual(hasteFS.exists(fileConfig), true, 'fileConfig should exist in hasteFS');

  const nonExistent = path.join(tempDir, 'gamma.js');
  assert.strictEqual(hasteFS.exists(nonExistent), false, 'nonExistent file should not exist in hasteFS');

  // 6. Match files by pattern
  const tsFiles = hasteFS.matchFiles(/\.ts$/);
  assert.strictEqual(tsFiles.length, 1, 'should find exactly 1 TypeScript file');
  assert.strictEqual(tsFiles[0], fileBeta, 'matched file must match fileBeta');

  const jsonFiles = hasteFS.matchFiles(/\.json$/);
  assert.strictEqual(jsonFiles.length, 1, 'should find exactly 1 JSON file');
  assert.strictEqual(jsonFiles[0], fileConfig, 'matched file must match fileConfig');

  console.log('CONTRACT PASS: HasteMap successfully created, crawled files, and built hasteFS');
} finally {
  fs.rmSync(tempDir, { recursive: true, force: true });
}

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