CodeSampleX

Sample

@electron/osx-sign 1.3.1: signAsync

Verified sample for npm @electron/osx-sign 1.3.1: signAsync. The contract ran on node 22 · linux debian/x64 · docker and passed.

sha256:8f11f5fb1e251d29729afb8d8faa58e802eb33ade7938b81b20f49d661a9bb53

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
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…
2026-09-05

Case

HOW
Goal
verify @electron/osx-sign.signAsync in pkg:npm/%40electron/osx-sign@1.3.1
Packages
Symbols
  • @electron/osx-sign.signAsync
Environment
node 22.23.2
Created
2026-09-05T21:30:30Z

Contract

  1. signAsync is an exported function and an alias for signApp
  2. signAsync validates options and rejects with an Error if app path is not specified
  3. signAsync rejects with an Error if application path does not end with .app
  4. signAsync rejects with an Error if target application bundle does not exist on disk
  5. signAsync rejects with an Error if additional binaries option is not an array
  6. signAsync rejects with an Error if provisioning profile option is not a string
  7. signAsync rejects with an Error if type option is neither development nor distribution

Files

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

Download the source artifact (tar.gz)

Source

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 @electron/osx-sign.signAsync in pkg:npm/%40electron/osx-sign@1.3.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40electron/osx-sign@1.3.1
Demonstrate these symbols/APIs:
  - @electron/osx-sign.signAsync

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:sha256:701c35f95473c7991f4e1e6df6891d3f8d98fd90975894e7bdfdfd437d129fb6","contract":["signAsync is an exported function and an alias for signApp","signAsync validates options and rejects with an Error if app path is not specified","signAsync rejects with an Error if application path does not end with .app","signAsync rejects with an Error if target application bundle does not exist on disk","signAsync rejects with an Error if additional binaries option is not an array","signAsync rejects with an Error if provisioning profile option is not a string","signAsync rejects with an Error if type option is neither development nor distribution"],"goal":"verify @electron/osx-sign.signAsync in pkg:npm/%40electron/osx-sign@1.3.1","kind":"HOW","packages":["pkg:npm/%40electron/osx-sign@1.3.1"],"schemaVersion":1,"symbols":["@electron/osx-sign.signAsync"]},"contractCommand":["node","test/contract.cjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","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/%40electron/osx-sign@1.3.1"],"schemaVersion":1,"subject":"pkg:npm/%40electron/osx-sign@1.3.1","symbols":["@electron/osx-sign.signAsync"],"verifierAdapter":"node-typescript@1"}
index.js
'use strict';

const { signAsync, signApp } = require('@electron/osx-sign');

/**
 * Validates and configures signing options for an Electron application bundle using signAsync.
 * @param {import('@electron/osx-sign').SignOptions} opts
 * @returns {Promise<import('@electron/osx-sign').SignOptions>}
 */
async function validateSigningOptions(opts) {
  if (!opts || !opts.app) {
    throw new Error('Path to application must be specified.');
  }
  return opts;
}

/**
 * Prepares signing arguments and executes signAsync.
 * @param {import('@electron/osx-sign').SignOptions} opts
 * @returns {Promise<void>}
 */
async function signElectronApp(opts) {
  return await signAsync(opts);
}

module.exports = {
  signAsync,
  signApp,
  validateSigningOptions,
  signElectronApp
};
package-lock.json
{
  "name": "sample-electron-osx-sign",
  "version": "1.0.0",
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  "requires": true,
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      "name": "sample-electron-osx-sign",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@electron/osx-sign": "1.3.1"
      }
    },
    "node_modules/@electron/osx-sign": {
      "version": "1.3.1",
      "resolved": "https://registry.npmjs.org/@electron/osx-sign/-/osx-sign-1.3.1.tgz",
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      "license": "BSD-2-Clause",
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        "fs-extra": "^10.0.0",
        "isbinaryfile": "^4.0.8",
        "minimist": "^1.2.6",
        "plist": "^3.0.5"
      },
      "bin": {
        "electron-osx-flat": "bin/electron-osx-flat.js",
        "electron-osx-sign": "bin/electron-osx-sign.js"
      },
      "engines": {
        "node": ">=12.0.0"
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      "license": "MIT",
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  }
}
package.json
{
  "name": "sample-electron-osx-sign",
  "version": "1.0.0",
  "private": true,
  "description": "verify @electron/osx-sign.signAsync in pkg:npm/%40electron/osx-sign@1.3.1",
  "main": "index.js",
  "scripts": {
    "test": "node test/contract.cjs"
  },
  "dependencies": {
    "@electron/osx-sign": "1.3.1"
  },
  "license": "MIT-0"
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @electron/osx-sign.signAsync in pkg:npm/%40electron/osx-sign@1.3.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40electron/osx-sign@1.3.1"
  ],
  "symbols": [
    "@electron/osx-sign.signAsync"
  ]
}
test/contract.cjs
'use strict';

const assert = require('assert');
const fs = require('fs');
const path = require('path');
const os = require('os');
const { signAsync, signApp, validateSigningOptions, signElectronApp } = require('../index.js');

async function run() {
  const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'osx-sign-contract-'));

  try {
    // 1. signAsync is an exported function and an alias for signApp
    assert.strictEqual(typeof signAsync, 'function', 'signAsync must be a function');
    assert.strictEqual(typeof signApp, 'function', 'signApp must be a function');
    assert.strictEqual(signAsync, signApp, 'signAsync must be an alias for signApp');

    // 2. signAsync validates options and rejects with an Error if app path is not specified
    await assert.rejects(
      async () => {
        await signAsync({});
      },
      /Path to application must be specified/,
      'signAsync must reject when app path is missing'
    );

    // 3. signAsync rejects with an Error if application path does not end with .app
    await assert.rejects(
      async () => {
        await signAsync({ app: 'InvalidAppPath.dmg' });
      },
      /Extension of application must be `\.app`/,
      'signAsync must reject when application extension is not .app'
    );

    // 4. signAsync rejects with an Error if target application bundle does not exist on disk
    const nonExistentApp = path.join(tmpDir, 'NonExistent.app');
    await assert.rejects(
      async () => {
        await signAsync({ app: nonExistentApp });
      },
      /could not be found/,
      'signAsync must reject when target application does not exist on disk'
    );

    // Create a mock app directory for options validation
    const dummyApp = path.join(tmpDir, 'ValidMock.app');
    fs.mkdirSync(dummyApp, { recursive: true });

    // 5. signAsync rejects with an Error if additional binaries option is not an array
    await assert.rejects(
      async () => {
        await signAsync({ app: dummyApp, binaries: 'invalid-binaries-string' });
      },
      /Additional binaries should be an Array/,
      'signAsync must reject when binaries is not an Array'
    );

    // 6. signAsync rejects with an Error if provisioning profile option is not a string
    await assert.rejects(
      async () => {
        await signAsync({ app: dummyApp, provisioningProfile: 12345 });
      },
      /Path to provisioning profile should be a string/,
      'signAsync must reject when provisioning profile is not a string'
    );

    // 7. signAsync rejects with an Error if type option is neither development nor distribution
    await assert.rejects(
      async () => {
        await signAsync({ app: dummyApp, type: 'testing' });
      },
      /Type must be either `development` or `distribution`/,
      'signAsync must reject when type is neither development nor distribution'
    );

    // 8. Helper functions validateSigningOptions and signElectronApp
    const validated = await validateSigningOptions({ app: dummyApp });
    assert.strictEqual(validated.app, dummyApp, 'validateSigningOptions must return valid opts');

    await assert.rejects(
      async () => {
        await validateSigningOptions({});
      },
      /Path to application must be specified/,
      'validateSigningOptions must reject without app'
    );

    console.log('Contract tests passed successfully.');
  } finally {
    try {
      if (fs.existsSync(tmpDir)) {
        fs.rmSync(tmpDir, { recursive: true, force: true });
      }
    } catch (e) {
      // Ignore cleanup error
    }
  }
}

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

Origin Seeder

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