minipass-fetch 4.0.1: isRedirect

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 minipass-fetch.isRedirect in pkg:npm/minipass-fetch@4.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/minipass-fetch@4.0.1
Demonstrate these symbols/APIs:
  - minipass-fetch.isRedirect

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:sha256:01fb527c1eda7daa3baae65fa8c8553d2c73197dc363c1f16eb450e5dfa3aff7","contract":["minipass-fetch.isRedirect(code) returns true for HTTP redirect status codes 301, 302, 303, 307, and 308","minipass-fetch.isRedirect(code) returns false for non-redirect status codes including 200, 300, 304, 404, and 500"],"goal":"verify minipass-fetch.isRedirect in pkg:npm/minipass-fetch@4.0.1","kind":"HOW","packages":["pkg:npm/minipass-fetch@4.0.1"],"schemaVersion":1,"symbols":["minipass-fetch.isRedirect"]},"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/minipass-fetch@4.0.1"],"schemaVersion":1,"subject":"pkg:npm/minipass-fetch@4.0.1","symbols":["minipass-fetch.isRedirect"],"verifierAdapter":"node-typescript@1"}

{
  "name": "minipass-fetch-isredirect-sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "minipass-fetch-isredirect-sample",
      "version": "1.0.0",
      "dependencies": {
        "minipass-fetch": "4.0.1"
      }
    },
    "node_modules/encoding": {
      "version": "0.1.13",
      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
      "integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
      "license": "MIT",
      "optional": true,
      "dependencies": {
        "iconv-lite": "^0.6.2"
      }
    },
    "node_modules/iconv-lite": {
      "version": "0.6.3",
      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
      "license": "MIT",
      "optional": true,
      "dependencies": {
        "safer-buffer": ">= 2.1.2 < 3.0.0"
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      "engines": {
        "node": ">=0.10.0"
      }
    },
    "node_modules/minipass": {
      "version": "7.1.3",
      "resolved": "https://registry.npmjs.org/minipass/-/minipass-7.1.3.tgz",
      "integrity": "sha512-tEBHqDnIoM/1rXME1zgka9g6Q2lcoCkxHLuc7ODJ5BxbP5d4c2Z5cGgtXAku59200Cx7diuHTOYfSBD8n6mm8A==",
      "license": "BlueOak-1.0.0",
      "engines": {
        "node": ">=16 || 14 >=14.17"
      }
    },
    "node_modules/minipass-fetch": {
      "version": "4.0.1",
      "resolved": "https://registry.npmjs.org/minipass-fetch/-/minipass-fetch-4.0.1.tgz",
      "integrity": "sha512-j7U11C5HXigVuutxebFadoYBbd7VSdZWggSe64NVdvWNBqGAiXPL2QVCehjmw7lY1oF9gOllYbORh+hiNgfPgQ==",
      "license": "MIT",
      "dependencies": {
        "minipass": "^7.0.3",
        "minipass-sized": "^1.0.3",
        "minizlib": "^3.0.1"
      },
      "engines": {
        "node": "^18.17.0 || >=20.5.0"
      },
      "optionalDependencies": {
        "encoding": "^0.1.13"
      }
    },
    "node_modules/minipass-sized": {
      "version": "1.0.3",
      "resolved": "https://registry.npmjs.org/minipass-sized/-/minipass-sized-1.0.3.tgz",
      "integrity": "sha512-MbkQQ2CTiBMlA2Dm/5cY+9SWFEN8pzzOXi6rlM5Xxq0Yqbda5ZQy9sU75a673FE9ZK0Zsbr6Y5iP6u9nktfg2g==",
      "license": "ISC",
      "dependencies": {
        "minipass": "^3.0.0"
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      "engines": {
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    },
    "node_modules/minipass-sized/node_modules/minipass": {
      "version": "3.3.6",
      "resolved": "https://registry.npmjs.org/minipass/-/minipass-3.3.6.tgz",
      "integrity": "sha512-DxiNidxSEK+tHG6zOIklvNOwm3hvCrbUrdtzY74U6HKTJxvIDfOUL5W5P2Ghd3DTkhhKPYGqeNUIh5qcM4YBfw==",
      "license": "ISC",
      "dependencies": {
        "yallist": "^4.0.0"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/minizlib": {
      "version": "3.1.0",
      "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-3.1.0.tgz",
      "integrity": "sha512-KZxYo1BUkWD2TVFLr0MQoM8vUUigWD3LlD83a/75BqC+4qE0Hb1Vo5v1FgcfaNXvfXzr+5EhQ6ing/CaBijTlw==",
      "license": "MIT",
      "dependencies": {
        "minipass": "^7.1.2"
      },
      "engines": {
        "node": ">= 18"
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    },
    "node_modules/safer-buffer": {
      "version": "2.1.2",
      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
      "license": "MIT",
      "optional": true
    },
    "node_modules/yallist": {
      "version": "4.0.0",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
      "license": "ISC"
    }
  }
}

{
  "name": "minipass-fetch-isredirect-sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "dependencies": {
    "minipass-fetch": "4.0.1"
  },
  "scripts": {
    "test": "node test/contract.mjs"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify minipass-fetch.isRedirect in pkg:npm/minipass-fetch@4.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/minipass-fetch@4.0.1"
  ],
  "symbols": [
    "minipass-fetch.isRedirect"
  ]
}

import assert from 'node:assert/strict';
import fetch from 'minipass-fetch';

assert.equal(typeof fetch.isRedirect, 'function');

// Standard HTTP redirect status codes recognized by minipass-fetch.isRedirect
for (const code of [301, 302, 303, 307, 308]) {
  assert.equal(fetch.isRedirect(code), true, `Expected ${code} to be a redirect`);
}

// Non-redirect status codes and other 3xx codes (300, 304, 305, 306)
for (const code of [200, 204, 300, 304, 305, 306, 400, 404, 500]) {
  assert.equal(fetch.isRedirect(code), false, `Expected ${code} not to be a redirect`);
}