@vitest/mocker 3.2.7: AutospiedModule

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/mocker.AutospiedModule in pkg:npm/%40vitest/mocker@3.2.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40vitest/mocker@3.2.7
Demonstrate these symbols/APIs:
  - @vitest/mocker.AutospiedModule

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:sha256:85a31cd4e2edd6b713978ca5384d239fc6c317a4100c937af48dfc4a7e427bdb","contract":["assert AutospiedModule constructor stores raw, id, url and type autospy","assert toJSON returns serialized autospy mock descriptor","assert AutospiedModule.fromJSON recreates an AutospiedModule instance from serialized data","assert MockerRegistry registers AutospiedModule and maps by url and id","assert MockerRegistry.register accepts serialized JSON descriptor for autospy","assert MockerRegistry.register rejects direct AutospiedModule instance"],"goal":"verify @vitest/mocker.AutospiedModule in pkg:npm/%40vitest/mocker@3.2.7","kind":"HOW","packages":["pkg:npm/%40vitest/mocker@3.2.7"],"schemaVersion":1,"symbols":["@vitest/mocker.AutospiedModule"]},"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/%40vitest/mocker@3.2.7"],"schemaVersion":1,"subject":"pkg:npm/%40vitest/mocker@3.2.7","symbols":["@vitest/mocker.AutospiedModule"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-vitest-mocker",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-vitest-mocker",
      "version": "1.0.0",
      "dependencies": {
        "@vitest/mocker": "3.2.7"
      }
    },
    "node_modules/@jridgewell/sourcemap-codec": {
      "version": "1.5.5",
      "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.5.tgz",
      "integrity": "sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==",
      "license": "MIT"
    },
    "node_modules/@types/estree": {
      "version": "1.0.9",
      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.9.tgz",
      "integrity": "sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg==",
      "license": "MIT"
    },
    "node_modules/@vitest/mocker": {
      "version": "3.2.7",
      "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-3.2.7.tgz",
      "integrity": "sha512-Trr0hYO9CM3Wj6ksWHRhK9IZpIY6wTMO5u/MqXurMxT57sWBaOPEtP3Oq60ihZuh5JsiagKfz95OcxdEP6dBrA==",
      "license": "MIT",
      "dependencies": {
        "@vitest/spy": "3.2.7",
        "estree-walker": "^3.0.3",
        "magic-string": "^0.30.17"
      },
      "funding": {
        "url": "https://opencollective.com/vitest"
      },
      "peerDependencies": {
        "msw": "^2.4.9",
        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0"
      },
      "peerDependenciesMeta": {
        "msw": {
          "optional": true
        },
        "vite": {
          "optional": true
        }
      }
    },
    "node_modules/@vitest/spy": {
      "version": "3.2.7",
      "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-3.2.7.tgz",
      "integrity": "sha512-Q2eQGI6d2L/hBtZ0qNuKcAGid68XK6cv1xsoaIma6PaJhHPoqcEJhYpXZ/5myCMqkNgtP6UKuBhbc0nHKnrkuQ==",
      "license": "MIT",
      "dependencies": {
        "tinyspy": "^4.0.3"
      },
      "funding": {
        "url": "https://opencollective.com/vitest"
      }
    },
    "node_modules/estree-walker": {
      "version": "3.0.3",
      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-3.0.3.tgz",
      "integrity": "sha512-7RUKfXgSMMkzt6ZuXmqapOurLGPPfgj6l9uRZ7lRGolvk0y2yocc35LdcxKC5PQZdn2DMqioAQ2NoWcrTKmm6g==",
      "license": "MIT",
      "dependencies": {
        "@types/estree": "^1.0.0"
      }
    },
    "node_modules/magic-string": {
      "version": "0.30.21",
      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",
      "integrity": "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==",
      "license": "MIT",
      "dependencies": {
        "@jridgewell/sourcemap-codec": "^1.5.5"
      }
    },
    "node_modules/tinyspy": {
      "version": "4.0.4",
      "resolved": "https://registry.npmjs.org/tinyspy/-/tinyspy-4.0.4.tgz",
      "integrity": "sha512-azl+t0z7pw/z958Gy9svOTuzqIk6xq+NSheJzn5MMWtWTFywIacg2wUlzKFGtt3cthx0r2SxMK0yzJOR0IES7Q==",
      "license": "MIT",
      "engines": {
        "node": ">=14.0.0"
      }
    }
  }
}

{
  "name": "sample-vitest-mocker",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@vitest/mocker": "3.2.7"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @vitest/mocker.AutospiedModule in pkg:npm/%40vitest/mocker@3.2.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40vitest/mocker@3.2.7"
  ],
  "symbols": [
    "@vitest/mocker.AutospiedModule"
  ]
}

import assert from 'node:assert/strict';
import { AutospiedModule, MockerRegistry } from '@vitest/mocker';

// 1. Constructor and properties
const raw = 'my-module';
const id = '/path/to/my-module.js';
const url = 'file:///path/to/my-module.js';

const autospied = new AutospiedModule(raw, id, url);

assert.equal(autospied.type, 'autospy');
assert.equal(autospied.raw, raw);
assert.equal(autospied.id, id);
assert.equal(autospied.url, url);

// 2. toJSON serialization
const serialized = autospied.toJSON();
assert.deepEqual(serialized, {
  type: 'autospy',
  raw: 'my-module',
  id: '/path/to/my-module.js',
  url: 'file:///path/to/my-module.js'
});

// 3. fromJSON deserialization
const restored = AutospiedModule.fromJSON(serialized);
assert(restored instanceof AutospiedModule);
assert.equal(restored.type, 'autospy');
assert.equal(restored.raw, raw);
assert.equal(restored.id, id);
assert.equal(restored.url, url);
assert.deepEqual(restored.toJSON(), serialized);

// 4. MockerRegistry integration
const registry = new MockerRegistry();
registry.add(autospied);
assert.equal(registry.has(url), true);
assert.equal(registry.get(url), autospied);
assert.equal(registry.getById(id), autospied);

// 5. MockerRegistry register with arguments
const registered = registry.register('autospy', 'other-module', '/path/to/other.js', 'file:///path/to/other.js');
assert(registered instanceof AutospiedModule);
assert.equal(registered.type, 'autospy');
assert.equal(registered.raw, 'other-module');
assert.equal(registered.id, '/path/to/other.js');
assert.equal(registered.url, 'file:///path/to/other.js');
assert.equal(registry.get('file:///path/to/other.js'), registered);
assert.equal(registry.getById('/path/to/other.js'), registered);

// 6. MockerRegistry register with serialized JSON
const fromJsonRegistered = registry.register({
  type: 'autospy',
  raw: 'json-module',
  id: '/path/to/json.js',
  url: 'file:///path/to/json.js'
});
assert(fromJsonRegistered instanceof AutospiedModule);
assert.equal(fromJsonRegistered.type, 'autospy');
assert.equal(fromJsonRegistered.raw, 'json-module');
assert.equal(registry.get('file:///path/to/json.js'), fromJsonRegistered);

// 7. MockerRegistry refuses instance in register()
assert.throws(() => {
  registry.register(autospied);
}, /Cannot register a mock that is already defined/);

console.log('All AutospiedModule contract assertions passed.');