CodeSampleX

Пример

vitest 4.0.18: describe

Проверенный пример — npm vitest 4.0.18: describe. Контракт выполнен на node 22 · linux debian/x64 · docker и пройден: describe groups test cases into a…

sha256:c1bf6aed1988f88be496739f16a0148439b4ed24ce6468c68bb20d00b56257af

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Среды запусков проверки

Окружение Контракт Этапы Запуск
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-10

Кейс

HOW
Цель
verify vitest.describe in pkg:npm/vitest@4.0.18
Пакеты
Символы
  • vitest.describe
Окружение
node 22.23.2
Создан
2026-09-10T16:16:48Z

Контракт

  1. describe groups test cases into a structured suite task with type 'suite' and mode 'run'
  2. nested describe calls create hierarchical suite trees preserving parent-child relationships
  3. describe.skip marks a suite and its descendant test tasks with mode 'skip'
  4. describe.todo marks a suite as a pending placeholder task with mode 'todo'
  5. describe.each dynamically generates parameterized suites for each entry in a test table
  6. describe.concurrent configures test suites for concurrent task execution
  7. describe.sequential configures test suites to execute tasks in sequential order

Файлы

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

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 vitest.describe in pkg:npm/vitest@4.0.18
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/vitest@4.0.18
Demonstrate these symbols/APIs:
  - vitest.describe

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:sha256:17e904ac5177f2bba39bd0bb0fbd1c9dfbc9c717c5ee0d6bedaedb19d894cd31","constraints":{"executionContext":"node"},"contract":["describe groups test cases into a structured suite task with type 'suite' and mode 'run'","nested describe calls create hierarchical suite trees preserving parent-child relationships","describe.skip marks a suite and its descendant test tasks with mode 'skip'","describe.todo marks a suite as a pending placeholder task with mode 'todo'","describe.each dynamically generates parameterized suites for each entry in a test table","describe.concurrent configures test suites for concurrent task execution","describe.sequential configures test suites to execute tasks in sequential order"],"goal":"verify vitest.describe in pkg:npm/vitest@4.0.18","kind":"HOW","packages":["pkg:npm/vitest@4.0.18"],"schemaVersion":1,"symbols":["vitest.describe"]},"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/vitest@4.0.18"],"schemaVersion":1,"subject":"pkg:npm/vitest@4.0.18","symbols":["vitest.describe"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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  "name": "sample-vitest-describe",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
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package.json
{
  "name": "sample-vitest-describe",
  "version": "1.0.0",
  "private": true,
  "description": "Clean-room verification of vitest.describe",
  "main": "src/index.js",
  "dependencies": {
    "vitest": "4.0.18"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify vitest.describe in pkg:npm/vitest@4.0.18",
  "kind": "HOW",
  "packages": [
    "pkg:npm/vitest@4.0.18"
  ],
  "symbols": [
    "vitest.describe"
  ]
}
src/index.js
const { createVitest } = require('vitest/node');

/**
 * Runs Vitest programmatically against specified test files.
 * @param {string[]} files - Relative paths of test files to execute.
 * @param {object} [options] - Additional Vitest configuration options.
 * @returns {Promise<{ files: Array<object>, vitest: object }>}
 */
async function runVitestSuite(files, options = {}) {
  const vitest = await createVitest('test', {
    watch: false,
    include: files,
    reporters: [['default', { summary: false }]],
    ...options
  });
  await vitest.start(files);
  const collectedFiles = vitest.state.getFiles();
  return { files: collectedFiles, vitest };
}

module.exports = {
  runVitestSuite
};
test/contract.mjs
import assert from 'node:assert';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);
const { runVitestSuite } = require('../src/index.js');

// 1. Export verification
assert.strictEqual(typeof runVitestSuite, 'function', 'runVitestSuite must be exported as a function');

// 2. Execute test fixture containing describe and its sub-methods
const testPath = 'test/fixtures/describe.test.js';
const { files, vitest } = await runVitestSuite([testPath]);

try {
  // 3. Verify file collection
  assert.strictEqual(files.length, 1, 'Should collect exactly one test file');
  const fileTask = files[0];
  assert.strictEqual(fileTask.result?.state, 'pass', 'Test file should pass execution');

  // 4. Verify root describe suite: describe groups test cases into a structured suite task with type 'suite' and mode 'run'
  const rootSuite = fileTask.tasks.find(t => t.name === 'Root Calculator Suite');
  assert.ok(rootSuite, 'Root describe suite should exist');
  assert.strictEqual(rootSuite.type, 'suite', 'Root suite should have type suite');
  assert.strictEqual(rootSuite.mode, 'run', 'Root suite should have mode run');
  assert.strictEqual(rootSuite.result?.state, 'pass', 'Root suite result state should be pass');

  // 5. Verify direct test task inside describe
  const directTest = rootSuite.tasks.find(t => t.name === 'performs addition in root suite');
  assert.ok(directTest, 'Direct test should exist within root suite');
  assert.strictEqual(directTest.type, 'test', 'Direct test should have type test');
  assert.strictEqual(directTest.result?.state, 'pass', 'Direct test should pass');

  // 6. Verify nested describe suite: nested describe calls create hierarchical suite trees preserving parent-child relationships
  const nestedSuite = rootSuite.tasks.find(t => t.name === 'Nested Arithmetic Suite');
  assert.ok(nestedSuite, 'Nested describe suite should exist');
  assert.strictEqual(nestedSuite.type, 'suite', 'Nested suite should have type suite');
  assert.strictEqual(nestedSuite.result?.state, 'pass', 'Nested suite should pass');
  const nestedTest = nestedSuite.tasks.find(t => t.name === 'performs multiplication in nested suite');
  assert.ok(nestedTest, 'Nested test should exist within nested suite');
  assert.strictEqual(nestedTest.result?.state, 'pass', 'Nested test should pass');

  // 7. Verify describe.skip: describe.skip marks a suite and its descendant test tasks with mode 'skip'
  const skippedSuite = rootSuite.tasks.find(t => t.name === 'Skipped Suite');
  assert.ok(skippedSuite, 'Skipped suite should exist');
  assert.strictEqual(skippedSuite.type, 'suite', 'Skipped suite should have type suite');
  assert.strictEqual(skippedSuite.mode, 'skip', 'Skipped suite mode should be skip');
  assert.strictEqual(skippedSuite.result?.state, 'skip', 'Skipped suite state should be skip');

  // 8. Verify describe.todo: describe.todo marks a suite as a pending placeholder task with mode 'todo'
  const todoSuite = rootSuite.tasks.find(t => t.name === 'Pending Feature Suite');
  assert.ok(todoSuite, 'Todo suite should exist');
  assert.strictEqual(todoSuite.type, 'suite', 'Todo suite should have type suite');
  assert.strictEqual(todoSuite.mode, 'todo', 'Todo suite mode should be todo');
  assert.strictEqual(todoSuite.result?.state, 'todo', 'Todo suite state should be todo');

  // 9. Verify describe.each: describe.each dynamically generates parameterized suites for each entry in a test table
  const paramSuites = rootSuite.tasks.filter(t => t.name.startsWith('Parameterized sum'));
  assert.strictEqual(paramSuites.length, 2, 'Should generate 2 parameterized suites from table');
  for (const suite of paramSuites) {
    assert.strictEqual(suite.type, 'suite', 'Parameterized task should be a suite');
    assert.strictEqual(suite.result?.state, 'pass', 'Parameterized suite should pass');
  }

  // 10. Verify describe.concurrent: describe.concurrent configures test suites for concurrent task execution
  const concurrentSuite = rootSuite.tasks.find(t => t.name === 'Concurrent Suite');
  assert.ok(concurrentSuite, 'Concurrent suite should exist');
  assert.strictEqual(concurrentSuite.type, 'suite', 'Concurrent suite should have type suite');
  assert.strictEqual(concurrentSuite.result?.state, 'pass', 'Concurrent suite should pass');
  assert.strictEqual(concurrentSuite.tasks.length, 2, 'Concurrent suite should have 2 tasks');

  // 11. Verify describe.sequential: describe.sequential configures test suites to execute tasks in sequential order
  const sequentialSuite = rootSuite.tasks.find(t => t.name === 'Sequential Suite');
  assert.ok(sequentialSuite, 'Sequential suite should exist');
  assert.strictEqual(sequentialSuite.type, 'suite', 'Sequential suite should have type suite');
  assert.strictEqual(sequentialSuite.result?.state, 'pass', 'Sequential suite should pass');
  assert.strictEqual(sequentialSuite.tasks.length, 2, 'Sequential suite should have 2 tasks');

  console.log('Contract tests for vitest.describe passed successfully.');
} finally {
  await vitest.close();
}
test/fixtures/describe.test.js
import { describe, it, expect, beforeAll, afterAll, beforeEach, afterEach } from 'vitest';

describe('Root Calculator Suite', () => {
  const executionSteps = [];

  beforeAll(() => {
    executionSteps.push('root:beforeAll');
  });

  beforeEach(() => {
    executionSteps.push('root:beforeEach');
  });

  afterEach(() => {
    executionSteps.push('root:afterEach');
  });

  afterAll(() => {
    executionSteps.push('root:afterAll');
  });

  it('performs addition in root suite', () => {
    expect(1 + 2).toBe(3);
  });

  describe('Nested Arithmetic Suite', () => {
    beforeEach(() => {
      executionSteps.push('nested:beforeEach');
    });

    it('performs multiplication in nested suite', () => {
      expect(3 * 4).toBe(12);
    });
  });

  describe.skip('Skipped Suite', () => {
    it('does not run assertion when suite is skipped', () => {
      expect(true).toBe(false);
    });
  });

  describe.todo('Pending Feature Suite');

  describe.each([
    { a: 2, b: 3, expected: 5 },
    { a: 10, b: 20, expected: 30 }
  ])('Parameterized sum of $a and $b', ({ a, b, expected }) => {
    it('returns correct addition', () => {
      expect(a + b).toBe(expected);
    });
  });

  describe.concurrent('Concurrent Suite', () => {
    it('executes task 1 concurrently', async () => {
      await new Promise(resolve => setTimeout(resolve, 5));
      expect(true).toBe(true);
    });

    it('executes task 2 concurrently', async () => {
      await new Promise(resolve => setTimeout(resolve, 5));
      expect(true).toBe(true);
    });
  });

  describe.sequential('Sequential Suite', () => {
    let order = 0;

    it('executes step 1 sequentially', () => {
      order += 1;
      expect(order).toBe(1);
    });

    it('executes step 2 sequentially', () => {
      order += 1;
      expect(order).toBe(2);
    });
  });
});

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