CodeSampleX

Пример

jest-message-util 29.7.0

Проверенный пример — npm jest-message-util 29.7.0. Контракт выполнен на node 22 · linux alpine/x64 · docker и пройден: separateMessageFromStack separates the…

sha256:f78036a65e8e8c24469ff4db6d55960ee94199076026317501967707e51edf80

Эта сеть предлагает одно: образец, который собирается. Она запустила его в песочнице и сохранила подписанную квитанцию. Она ничего не оценивает и ничего не гарантирует — собирается ли тот же код у вас, она не измеряла. Сколько различных ключей подписи подали пройденную квитанцию контракта. Один — только автор; больше одного — значит, кто-то ещё тоже собрал. Ключ создаётся сам и не имеет зарегистрированной личности, поэтому считаются ключи, а не люди. MIT-0

Свидетельства выполнения

Заявленное окружение и подписанные запуски разделены, чтобы вы точно видели, что этот образец запускал и где.

Основа свидетельства
Подписанный контракт пройден
Квитанции проверки
1
Ключи подписи, собравшие его
1
Заявленная среда linux 24 · ubuntu · glibc 2.39 x64 npm

Среды запусков проверки

Окружение Контракт Этапы Запуск
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

Кейс

HOW
Цель
verify pkg:npm/jest-message-util@29.7.0
Пакеты
Создан
2026-08-27T15:26:45Z

Контракт

  1. separateMessageFromStack separates the error message header from stack trace lines
  2. getStackTraceLines filters out Node.js internal runtime frames from stack traces
  3. getTopFrame parses the topmost call frame into file, line, and column details
  4. formatPath converts absolute paths within stack trace lines to rootDir-relative paths
  5. formatStackTrace formats and cleans error stack traces against configuration options
  6. formatExecError formats uncaught execution errors with test suite failure headers and stacks
  7. formatResultsErrors formats test failure assertion results with ancestor suite titles
  8. indentAllLines indents multiline text with standard indentation prefix

Файлы

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

Скачать артефакт с исходным кодом (tar.gz)

Исходный код

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: verify pkg:npm/jest-message-util@29.7.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/jest-message-util@29.7.0

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.
csx.json
{"case":{"caseId":"case:sha256:c45ee262031e6c2f8d85ff38b382e0b3450fc2cde731b367f94a494e6861472f","contract":["separateMessageFromStack separates the error message header from stack trace lines","getStackTraceLines filters out Node.js internal runtime frames from stack traces","getTopFrame parses the topmost call frame into file, line, and column details","formatPath converts absolute paths within stack trace lines to rootDir-relative paths","formatStackTrace formats and cleans error stack traces against configuration options","formatExecError formats uncaught execution errors with test suite failure headers and stacks","formatResultsErrors formats test failure assertion results with ancestor suite titles","indentAllLines indents multiline text with standard indentation prefix"],"goal":"verify pkg:npm/jest-message-util@29.7.0","kind":"HOW","packages":["pkg:npm/jest-message-util@29.7.0"],"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/jest-message-util@29.7.0"],"schemaVersion":1,"subject":"pkg:npm/jest-message-util@29.7.0","verifierAdapter":"node-typescript@1"}
package-lock.json
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  "name": "sample-jest-message-util",
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  "lockfileVersion": 3,
  "requires": true,
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    "": {
      "name": "sample-jest-message-util",
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      }
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    "node_modules/@babel/code-frame": {
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      "integrity": "sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw==",
      "license": "MIT",
      "dependencies": {
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        "js-tokens": "^4.0.0",
        "picocolors": "^1.1.1"
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      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
      "license": "MIT",
      "dependencies": {
        "is-number": "^7.0.0"
      },
      "engines": {
        "node": ">=8.0"
      }
    },
    "node_modules/undici-types": {
      "version": "8.3.0",
      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
      "license": "MIT"
    }
  }
}
package.json
{
  "name": "sample-jest-message-util",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "jest-message-util": "29.7.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/jest-message-util@29.7.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/jest-message-util@29.7.0"
  ]
}
src/index.mjs
import {
  formatExecError,
  formatPath,
  formatResultsErrors,
  formatStackTrace,
  getStackTraceLines,
  getTopFrame,
  indentAllLines,
  separateMessageFromStack,
} from 'jest-message-util';

export {
  formatExecError,
  formatPath,
  formatResultsErrors,
  formatStackTrace,
  getStackTraceLines,
  getTopFrame,
  indentAllLines,
  separateMessageFromStack,
};

export function cleanStackTrace(stack, rootDir = process.cwd(), noStackTrace = false) {
  return formatStackTrace(stack, { rootDir, testMatch: [] }, { noStackTrace });
}

export function formatErrorMessage(error, rootDir = process.cwd(), noTitle = false) {
  return formatExecError(error, { rootDir, testMatch: [] }, { noStackTrace: false }, undefined, undefined, noTitle);
}

export function getTopStackLocation(stack) {
  const lines = getStackTraceLines(stack);
  return getTopFrame(lines);
}
test/contract.mjs
import assert from 'node:assert';
import {
  formatExecError,
  formatPath,
  formatResultsErrors,
  formatStackTrace,
  getStackTraceLines,
  getTopFrame,
  indentAllLines,
  separateMessageFromStack,
  cleanStackTrace,
  formatErrorMessage,
  getTopStackLocation,
} from '../src/index.mjs';

const sampleRootDir = '/workspace/project';
const config = { rootDir: sampleRootDir, testMatch: [] };
const options = { noStackTrace: false };

// 1. separateMessageFromStack separates the error message header from stack trace lines
{
  const rawStack = 'Error: something went wrong\n    at Object.<anonymous> (/workspace/project/src/index.js:10:15)\n    at Module._compile (node:internal/modules/cjs/loader:1:1)';
  const result = separateMessageFromStack(rawStack);
  assert.strictEqual(result.message, 'something went wrong');
  assert.strictEqual(result.stack, '\n    at Object.<anonymous> (/workspace/project/src/index.js:10:15)\n    at Module._compile (node:internal/modules/cjs/loader:1:1)');

  const customErrorStack = 'CustomError: validation failed\n    at validate (/workspace/project/src/val.js:5:2)';
  const customResult = separateMessageFromStack(customErrorStack);
  assert.strictEqual(customResult.message, 'CustomError: validation failed');
  assert.strictEqual(customResult.stack, '\n    at validate (/workspace/project/src/val.js:5:2)');
}

// 2. getStackTraceLines filters out Node.js internal runtime frames from stack traces
{
  const rawStack = 'Error: execution error\n    at userFunction (/workspace/project/src/app.js:20:5)\n    at ModuleJob.run (node:internal/modules/esm/module_job:1:1)\n    at async asyncRunEntryPoint (node:internal/modules/run_main:2:2)';
  const lines = getStackTraceLines(rawStack);
  assert.strictEqual(lines.length, 2);
  assert.strictEqual(lines[0], 'Error: execution error');
  assert.strictEqual(lines[1], '    at userFunction (/workspace/project/src/app.js:20:5)');
}

// 3. getTopFrame parses the topmost call frame into file, line, and column details
{
  const lines = [
    'Error: top frame test',
    '    at calculateTotal (/workspace/project/src/calc.js:42:18)',
    '    at runStep (/workspace/project/src/runner.js:10:5)',
  ];
  const topFrame = getTopFrame(lines);
  assert.notStrictEqual(topFrame, null);
  assert.strictEqual(topFrame.file, '/workspace/project/src/calc.js');
  assert.strictEqual(topFrame.line, 42);
  assert.strictEqual(topFrame.column, 18);
  assert.strictEqual(topFrame.function, 'calculateTotal');

  const helperFrame = getTopStackLocation(lines.join('\n'));
  assert.deepStrictEqual(helperFrame, topFrame);

  const emptyFrame = getTopFrame([]);
  assert.strictEqual(emptyFrame, null);
}

// 4. formatPath converts absolute paths within stack trace lines to rootDir-relative paths
{
  const line = '    at Object.<anonymous> (/workspace/project/src/index.js:15:20)';
  const formatted = formatPath(line, config);
  assert.strictEqual(formatted, '    at Object.<anonymous> (src/index.js:15:20)');
}

// 5. formatStackTrace formats and cleans error stack traces against configuration options
{
  const rawStack = 'Error: failed operation\n    at run (/workspace/project/src/index.js:12:10)\n    at node:internal/main:1:1';
  const formatted = formatStackTrace(rawStack, config, options);
  assert(formatted.includes('src/index.js:12:10'));
  assert(!formatted.includes('node:internal'));

  const helperFormatted = cleanStackTrace(rawStack, sampleRootDir, false);
  assert.strictEqual(helperFormatted, formatted);

  const suppressed = formatStackTrace(rawStack, config, { noStackTrace: true });
  assert(suppressed.includes('Error: failed operation'));
  assert(suppressed.includes('src/index.js:12:10'));
}

// 6. formatExecError formats uncaught execution errors with test suite failure headers and stacks
{
  const err = new Error('database connection timeout');
  err.stack = 'Error: database connection timeout\n    at connect (/workspace/project/src/db.js:8:12)\n    at node:internal/process:1:1';
  const formatted = formatExecError(err, config, options);
  assert(formatted.includes('● Test suite failed to run'));
  assert(formatted.includes('database connection timeout'));
  assert(formatted.includes('src/db.js:8:12'));

  const noTitleFormatted = formatErrorMessage(err, sampleRootDir, true);
  assert(!noTitleFormatted.includes('● Test suite failed to run'));
  assert(noTitleFormatted.includes('database connection timeout'));
}

// 7. formatResultsErrors formats test failure assertion results with ancestor suite titles
{
  const testResults = [
    {
      title: 'should validate payload schema',
      ancestorTitles: ['Validator', 'JSON schema'],
      status: 'failed',
      failureMessages: [
        'Error: expect(received).toBe(expected)\n\nExpected: 200\nReceived: 500\n    at Object.<anonymous> (/workspace/project/test/api.test.js:25:10)'
      ],
      failureDetails: [{}]
    }
  ];

  const resultError = formatResultsErrors(testResults, config, options);
  assert.notStrictEqual(resultError, null);
  assert(resultError.includes('● Validator › JSON schema › should validate payload schema'));
  assert(resultError.includes('Expected: 200'));
  assert(resultError.includes('Received: 500'));
  assert(resultError.includes('test/api.test.js:25:10'));
}

// 8. indentAllLines indents multiline text with standard indentation prefix
{
  const input = 'first line\nsecond line\nthird line';
  const indented = indentAllLines(input);
  assert.strictEqual(indented, '    first line\n    second line\n    third line');

  const withEmptyLine = 'first line\n\nsecond line';
  assert.strictEqual(indentAllLines(withEmptyLine), '    first line\n\n    second line');
}

console.log('All jest-message-util contract assertions passed.');

Исходный сидер

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