semver 6.3.1: gt

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 semver.gt in pkg:npm/semver@6.3.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/semver@6.3.1
Demonstrate these symbols/APIs:
  - semver.gt

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:e53ed56cb870e4cfa2cf200393c72724c5df528f31949e34e17e6f13db912a0b","contract":["assert semver.gt returns true when the first version is greater than the second by major, minor, or patch","assert semver.gt returns false when the first version is less than or equal to the second version","assert semver.gt correctly prioritizes release versions over prerelease versions with the same major.minor.patch","assert semver.gt compares prerelease identifiers by numerical and alphabetical precedence","assert semver.gt ignores build metadata when determining version precedence","assert semver.gt supports loose mode to compare version strings with prefixes or whitespace","assert semver.gt throws a TypeError when given an invalid semver string in strict mode"],"goal":"verify semver.gt in pkg:npm/semver@6.3.1","kind":"HOW","packages":["pkg:npm/semver@6.3.1"],"schemaVersion":1,"symbols":["semver.gt"]},"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/semver@6.3.1"],"schemaVersion":1,"subject":"pkg:npm/semver@6.3.1","symbols":["semver.gt"],"verifierAdapter":"node-typescript@1"}

const semver = require('semver');

/**
 * Compare two semver version strings to determine if the first is greater than the second.
 *
 * @param {string} v1 - The first version string.
 * @param {string} v2 - The second version string.
 * @param {boolean|object} [options] - Optional loose mode flag or options object.
 * @returns {boolean} True if v1 is strictly greater than v2, false otherwise.
 */
function isGreaterThan(v1, v2, options) {
  return semver.gt(v1, v2, options);
}

module.exports = {
  isGreaterThan,
  semver,
};

{
  "name": "sample-semver-gt",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-semver-gt",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "semver": "6.3.1"
      }
    },
    "node_modules/semver": {
      "version": "6.3.1",
      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
      "integrity": "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==",
      "license": "ISC",
      "bin": {
        "semver": "bin/semver.js"
      }
    }
  }
}

{
  "name": "sample-semver-gt",
  "version": "1.0.0",
  "description": "Minimal clean-room sample verifying semver.gt version comparison operations",
  "main": "index.js",
  "license": "MIT-0",
  "dependencies": {
    "semver": "6.3.1"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify semver.gt in pkg:npm/semver@6.3.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/semver@6.3.1"
  ],
  "symbols": [
    "semver.gt"
  ]
}

import assert from 'node:assert';
import semver from 'semver';
import { isGreaterThan } from '../index.js';

// 1. Assert semver.gt returns true when the first version is greater than the second by major, minor, or patch
assert.strictEqual(isGreaterThan('2.0.0', '1.9.9'), true, 'Major version 2.0.0 must be greater than 1.9.9');
assert.strictEqual(isGreaterThan('1.3.0', '1.2.9'), true, 'Minor version 1.3.0 must be greater than 1.2.9');
assert.strictEqual(isGreaterThan('1.2.4', '1.2.3'), true, 'Patch version 1.2.4 must be greater than 1.2.3');
assert.strictEqual(semver.gt('2.0.0', '1.9.9'), true);
assert.strictEqual(semver.gt('1.3.0', '1.2.9'), true);
assert.strictEqual(semver.gt('1.2.4', '1.2.3'), true);

// 2. Assert semver.gt returns false when the first version is less than or equal to the second version
assert.strictEqual(isGreaterThan('1.2.3', '1.2.3'), false, 'Equal versions must return false');
assert.strictEqual(isGreaterThan('1.2.2', '1.2.3'), false, 'Lesser patch version must return false');
assert.strictEqual(isGreaterThan('1.1.9', '1.2.0'), false, 'Lesser minor version must return false');
assert.strictEqual(isGreaterThan('0.9.9', '1.0.0'), false, 'Lesser major version must return false');
assert.strictEqual(semver.gt('1.2.3', '1.2.3'), false);

// 3. Assert semver.gt correctly prioritizes release versions over prerelease versions with the same major.minor.patch
assert.strictEqual(isGreaterThan('1.0.0', '1.0.0-alpha'), true, 'Normal release 1.0.0 must be greater than prerelease 1.0.0-alpha');
assert.strictEqual(isGreaterThan('1.0.0', '1.0.0-rc.1'), true, 'Normal release 1.0.0 must be greater than prerelease 1.0.0-rc.1');
assert.strictEqual(isGreaterThan('1.0.0-beta', '1.0.0'), false, 'Prerelease 1.0.0-beta must not be greater than normal release 1.0.0');

// 4. Assert semver.gt compares prerelease identifiers by numerical and alphabetical precedence
assert.strictEqual(isGreaterThan('1.0.0-alpha.2', '1.0.0-alpha.1'), true, 'Numeric prerelease 2 must be greater than 1');
assert.strictEqual(isGreaterThan('1.0.0-beta.1', '1.0.0-alpha.9'), true, 'Identifier beta must be greater than alpha');
assert.strictEqual(isGreaterThan('1.0.0-alpha.beta', '1.0.0-alpha.1'), true, 'String prerelease identifier has higher precedence than numeric identifier');
assert.strictEqual(isGreaterThan('1.0.0-rc.1', '1.0.0-beta.11'), true, 'Identifier rc must be greater than beta');

// 5. Assert semver.gt ignores build metadata when determining version precedence
assert.strictEqual(isGreaterThan('1.0.0+build.1', '1.0.0+build.2'), false, 'Equal versions with different build metadata must return false');
assert.strictEqual(isGreaterThan('1.0.0+20130313144700', '1.0.0'), false, 'Version with build metadata must not be greater than same version without');
assert.strictEqual(isGreaterThan('1.0.1+build.1', '1.0.0+build.2'), true, 'Higher patch with build metadata must be greater than lower patch');

// 6. Assert semver.gt supports loose mode to compare version strings with prefixes or whitespace
assert.strictEqual(isGreaterThan(' =v1.2.4 ', 'v1.2.3', true), true, 'Loose mode with boolean true must handle prefix and whitespace');
assert.strictEqual(isGreaterThan(' =v1.2.4 ', 'v1.2.3', { loose: true }), true, 'Loose mode with options object must handle prefix and whitespace');
assert.throws(() => isGreaterThan(' =v1.2.4 ', 'v1.2.3', false), TypeError, 'Strict mode must reject prefix and whitespace and throw TypeError');

// 7. Assert semver.gt throws a TypeError when given an invalid semver string in strict mode
assert.throws(() => isGreaterThan('invalid', '1.0.0'), TypeError, 'Invalid first argument must throw TypeError');
assert.throws(() => isGreaterThan('1.0.0', 'not-a-version'), TypeError, 'Invalid second argument must throw TypeError');
assert.throws(() => isGreaterThan(null, '1.0.0'), TypeError, 'Null first argument must throw TypeError');
assert.throws(() => isGreaterThan('1.0.0', undefined), TypeError, 'Undefined second argument must throw TypeError');

console.log('All semver.gt contract assertions passed.');