hookified 1.15.1

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/hookified@1.15.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/hookified@1.15.1
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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:sha256:230a7dd9212b9a0f27df87df656a2b999bfe10594eb65d4a99175237b34be49d","constraints":{"executionContext":"node"},"contract":["Hookified registers lifecycle hooks with onHook and executes them during hook calls","Hookified supports beforeHook and afterHook convenience methods with prefixing","Hookified onceHook executes registered handlers exactly once","Hookified hookSync executes synchronous hook handlers","Hookified enforceBeforeAfter option rejects hook registration without before or after prefix","Hookified throwOnHookError option causes hook invocation to reject when a handler throws","Hookified inherits Eventified to register listeners with on and emit events"],"goal":"verify pkg:npm/hookified@1.15.1","kind":"HOW","packages":["pkg:npm/hookified@1.15.1"],"schemaVersion":1},"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/hookified@1.15.1"],"schemaVersion":1,"subject":"pkg:npm/hookified@1.15.1","verifierAdapter":"node-typescript@1"}

{
  "name": "sample-hookified",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-hookified",
      "version": "1.0.0",
      "dependencies": {
        "hookified": "1.15.1"
      }
    },
    "node_modules/hookified": {
      "version": "1.15.1",
      "resolved": "https://registry.npmjs.org/hookified/-/hookified-1.15.1.tgz",
      "integrity": "sha512-MvG/clsADq1GPM2KGo2nyfaWVyn9naPiXrqIe4jYjXNZQt238kWyOGrsyc/DmRAQ+Re6yeo6yX/yoNCG5KAEVg==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-hookified",
  "version": "1.0.0",
  "private": true,
  "description": "Clean-room verification sample for hookified",
  "dependencies": {
    "hookified": "1.15.1"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/hookified@1.15.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/hookified@1.15.1"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}

import assert from 'node:assert/strict';
import { Hookified } from 'hookified';

async function runTests() {
  // 1. Hookified registers lifecycle hooks with onHook and executes them during hook calls
  {
    const hookified = new Hookified();
    const calls = [];
    hookified.onHook('data', async (context) => {
      calls.push('first');
      context.value += 1;
    });
    hookified.onHook('data', async (context) => {
      calls.push('second');
      context.value *= 2;
    });

    const ctx = { value: 5 };
    await hookified.hook('data', ctx);

    assert.deepEqual(calls, ['first', 'second']);
    assert.equal(ctx.value, 12);
  }

  // 2. Hookified supports beforeHook and afterHook convenience methods with prefixing
  {
    const hookified = new Hookified();
    const sequence = [];
    hookified.onHook('before:save', async (doc) => {
      sequence.push(`before:${doc.title}`);
    });
    hookified.onHook('after:save', async (doc) => {
      sequence.push(`after:${doc.title}`);
    });

    const item = { title: 'item1' };
    await hookified.beforeHook('save', item);
    await hookified.afterHook('save', item);

    assert.deepEqual(sequence, ['before:item1', 'after:item1']);
  }

  // 3. Hookified onceHook executes registered handlers exactly once
  {
    const hookified = new Hookified();
    let executionCount = 0;
    hookified.onceHook('single', async () => {
      executionCount += 1;
    });

    await hookified.hook('single');
    await hookified.hook('single');
    await hookified.hook('single');

    assert.equal(executionCount, 1);
  }

  // 4. Hookified hookSync executes synchronous hook handlers
  {
    const hookified = new Hookified();
    let syncCalled = false;
    hookified.onHook('syncTask', (payload) => {
      syncCalled = payload.valid;
    });

    hookified.hookSync('syncTask', { valid: true });
    assert.equal(syncCalled, true);
  }

  // 5. Hookified enforceBeforeAfter option rejects hook registration without before or after prefix
  {
    const hookified = new Hookified({ enforceBeforeAfter: true });
    assert.throws(
      () => {
        hookified.onHook('invalidEventName', () => {});
      },
      (err) => {
        return err instanceof Error;
      }
    );

    let registered = false;
    hookified.onHook('before:validEvent', () => {
      registered = true;
    });
    hookified.hookSync('before:validEvent');
    assert.equal(registered, true);
  }

  // 6. Hookified throwOnHookError option causes hook invocation to reject when a handler throws
  {
    const hookified = new Hookified({ throwOnHookError: true });
    hookified.onHook('errorProne', async () => {
      throw new Error('hook error occurred');
    });

    await assert.rejects(
      async () => {
        await hookified.hook('errorProne');
      },
      {
        message: /errorProne: hook error occurred/
      }
    );
  }

  // 7. Hookified inherits Eventified to register listeners with on and emit events
  {
    const hookified = new Hookified();
    const receivedEvents = [];
    hookified.on('notification', (payload) => {
      receivedEvents.push(payload);
    });

    const result = hookified.emit('notification', { id: 101, status: 'ready' });
    assert.equal(result, true);
    assert.deepEqual(receivedEvents, [{ id: 101, status: 'ready' }]);
    assert.equal(hookified.listenerCount('notification'), 1);
  }

  console.log('Contract tests passed successfully.');
}

runTests().catch((err) => {
  console.error('Contract test failed:', err);
  process.exit(1);
});