glob 10.5.0

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/glob@10.5.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/glob@10.5.0

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:sha256:81bf93aee3c934281376b6baf9887f1054341086b8aea10ad630eaa0ae4d8a4b","contract":["glob and globSync match file paths across directory hierarchies using wildcard patterns","globSync excludes paths matching the ignore pattern option","hasMagic accurately detects whether a pattern contains glob magic characters","escape escapes special pattern characters to match literal bracket and wildcard names","unescape reverses escaped pattern strings back to their literal representations","Glob instance provides stream and iterator interfaces for traversing filesystem matches"],"goal":"verify pkg:npm/glob@10.5.0","kind":"HOW","packages":["pkg:npm/glob@10.5.0"],"schemaVersion":1},"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/glob@10.5.0"],"schemaVersion":1,"subject":"pkg:npm/glob@10.5.0","verifierAdapter":"node-typescript@1"}

{
  "name": "sample-glob",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-glob",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "glob": "10.5.0"
      }
    },
    "node_modules/@isaacs/cliui": {
      "version": "8.0.2",
      "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
      "integrity": "sha512-O8jcjabXaleOG9DQ0+ARXWZBTfnP4WNAqzuiJK7ll44AmxGKv/J2M4TPjxjY3znBCfvBXFzucm1twdyFybFqEA==",
      "license": "ISC",
      "dependencies": {
        "string-width": "^5.1.2",
        "string-width-cjs": "npm:string-width@^4.2.0",
        "strip-ansi": "^7.0.1",
        "strip-ansi-cjs": "npm:strip-ansi@^6.0.1",
        "wrap-ansi": "^8.1.0",
        "wrap-ansi-cjs": "npm:wrap-ansi@^7.0.0"
      },
      "engines": {
        "node": ">=12"
      }
    },
    "node_modules/@pkgjs/parseargs": {
      "version": "0.11.0",
      "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
      "integrity": "sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==",
      "license": "MIT",
      "optional": true,
      "engines": {
        "node": ">=14"
      }
    },
    "node_modules/ansi-regex": {
      "version": "6.3.0",
      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.3.0.tgz",
      "integrity": "sha512-WpDfL7NO6j7tH88IDBNVdUJxDh9nmCteAVW9dsep846XdwF4naCBK+/tGLX3KJgcpgMRXCFlTM2hKGoK9FsdrQ==",
      "license": "MIT",
      "engines": {
        "node": ">=12"
      },
      "funding": {
        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
      }
    },
    "node_modules/ansi-styles": {
      "version": "6.2.3",
      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz",
      "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==",
      "license": "MIT",
      "engines": {
        "node": ">=12"
      },
      "funding": {
        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
      }
    },
    "node_modules/balanced-match": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
      "license": "MIT"
    },
    "node_modules/brace-expansion": {
      "version": "2.1.4",
      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.1.4.tgz",
      "integrity": "sha512-hGfVzPxthbf3+2yjg/RBs60cB0FhqBS/zvdV/4wn4/BmN0bNMMHPc4V/BbFieqf1TKAGGAHnY4eSjajCl0f2Xg==",
      "license": "MIT",
      "dependencies": {
        "balanced-match": "^1.0.0"
      }
    },
    "node_modules/color-convert": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
      "license": "MIT",
      "dependencies": {
        "color-name": "~1.1.4"
      },
      "engines": {
        "node": ">=7.0.0"
      }
    },
    "node_modules/color-name": {
      "version": "1.1.4",
      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
      "license": "MIT"
    },
    "node_modules/cross-spawn": {
      "version": "7.0.6",
      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
      "integrity": "sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==",
      "license": "MIT",
      "dependencies": {
        "path-key": "^3.1.0",
        "shebang-command": "^2.0.0",
        "which": "^2.0.1"
      },
      "engines": {
        "node": ">= 8"
      }
    },
    "node_modules/eastasianwidth": {
      "version": "0.2.0",
      "resolved": "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz",
      "integrity": "sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==",
      "license": "MIT"
    },
    "node_modules/emoji-regex": {
      "version": "9.2.2",
      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-9.2.2.tgz",
      "integrity": "sha512-L18DaJsXSUk2+42pv8mLs5jJT2hqFkFE4j21wOmgbUqsZ2hL72NsUU785g9RXgo3s0ZNgVl42TiHp3ZtOv/Vyg==",
      "license": "MIT"
    },
    "node_modules/foreground-child": {
      "version": "3.3.1",
      "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-3.3.1.tgz",
      "integrity": "sha512-gIXjKqtFuWEgzFRJA9WCQeSJLZDjgJUOMCMzxtvFq/37KojM1BFGufqsCy0r4qSQmYLsZYMeyRqzIWOMup03sw==",
      "license": "ISC",
      "dependencies": {
        "cross-spawn": "^7.0.6",
        "signal-exit": "^4.0.1"
      },
      "engines": {
        "node": ">=14"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      }
    },
    "node_modules/glob": {
      "version": "10.5.0",
      "resolved": "https://registry.npmjs.org/glob/-/glob-10.5.0.tgz",
      "integrity": "sha512-DfXN8DfhJ7NH3Oe7cFmu3NCu1wKbkReJ8TorzSAFbSKrlNaQSKfIzqYqVY8zlbs2NLBbWpRiU52GX2PbaBVNkg==",
      "deprecated": "Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me",
      "license": "ISC",
      "dependencies": {
        "foreground-child": "^3.1.0",
        "jackspeak": "^3.1.2",
        "minimatch": "^9.0.4",
        "minipass": "^7.1.2",
        "package-json-from-dist": "^1.0.0",
        "path-scurry": "^1.11.1"
      },
      "bin": {
        "glob": "dist/esm/bin.mjs"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      }
    },
    "node_modules/is-fullwidth-code-point": {
      "version": "3.0.0",
      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
      "license": "MIT",
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/isexe": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
      "integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
      "license": "ISC"
    },
    "node_modules/jackspeak": {
      "version": "3.4.3",
      "resolved": "https://registry.npmjs.org/jackspeak/-/jackspeak-3.4.3.tgz",
      "integrity": "sha512-OGlZQpz2yfahA/Rd1Y8Cd9SIEsqvXkLVoSw/cgwhnhFMDbsQFeZYoJJ7bIZBS9BcamUW96asq/npPWugM+RQBw==",
      "license": "BlueOak-1.0.0",
      "dependencies": {
        "@isaacs/cliui": "^8.0.2"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      },
      "optionalDependencies": {
        "@pkgjs/parseargs": "^0.11.0"
      }
    },
    "node_modules/lru-cache": {
      "version": "10.4.3",
      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-10.4.3.tgz",
      "integrity": "sha512-JNAzZcXrCt42VGLuYz0zfAzDfAvJWW6AfYlDBQyDV5DClI2m5sAmK+OIO7s59XfsRsWHp02jAJrRadPRGTt6SQ==",
      "license": "ISC"
    },
    "node_modules/minimatch": {
      "version": "9.0.9",
      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.9.tgz",
      "integrity": "sha512-OBwBN9AL4dqmETlpS2zasx+vTeWclWzkblfZk7KTA5j3jeOONz/tRCnZomUyvNg83wL5Zv9Ss6HMJXAgL8R2Yg==",
      "license": "ISC",
      "dependencies": {
        "brace-expansion": "^2.0.2"
      },
      "engines": {
        "node": ">=16 || 14 >=14.17"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      }
    },
    "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/package-json-from-dist": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/package-json-from-dist/-/package-json-from-dist-1.0.1.tgz",
      "integrity": "sha512-UEZIS3/by4OC8vL3P2dTXRETpebLI2NiI5vIrjaD/5UtrkFX/tNbwjTSRAGC/+7CAo2pIcBaRgWmcBBHcsaCIw==",
      "license": "BlueOak-1.0.0"
    },
    "node_modules/path-key": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
      "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==",
      "license": "MIT",
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/path-scurry": {
      "version": "1.11.1",
      "resolved": "https://registry.npmjs.org/path-scurry/-/path-scurry-1.11.1.tgz",
      "integrity": "sha512-Xa4Nw17FS9ApQFJ9umLiJS4orGjm7ZzwUrwamcGQuHSzDyth9boKDaycYdDcZDuqYATXw4HFXgaqWTctW/v1HA==",
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      "dependencies": {
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        "minipass": "^5.0.0 || ^6.0.2 || ^7.0.0"
      },
      "engines": {
        "node": ">=16 || 14 >=14.18"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      }
    },
    "node_modules/shebang-command": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
      "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
      "license": "MIT",
      "dependencies": {
        "shebang-regex": "^3.0.0"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/shebang-regex": {
      "version": "3.0.0",
      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
      "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
      "license": "MIT",
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/signal-exit": {
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      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
      "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
      "license": "ISC",
      "engines": {
        "node": ">=14"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      }
    },
    "node_modules/string-width": {
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      "resolved": "https://registry.npmjs.org/string-width/-/string-width-5.1.2.tgz",
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      "license": "MIT",
      "dependencies": {
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        "emoji-regex": "^9.2.2",
        "strip-ansi": "^7.0.1"
      },
      "engines": {
        "node": ">=12"
      },
      "funding": {
        "url": "https://github.com/sponsors/sindresorhus"
      }
    },
    "node_modules/string-width-cjs": {
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      "version": "4.2.3",
      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
      "license": "MIT",
      "dependencies": {
        "emoji-regex": "^8.0.0",
        "is-fullwidth-code-point": "^3.0.0",
        "strip-ansi": "^6.0.1"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/string-width-cjs/node_modules/ansi-regex": {
      "version": "5.0.1",
      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
      "license": "MIT",
      "engines": {
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      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
      "license": "MIT",
      "dependencies": {
        "ansi-regex": "^5.0.1"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/strip-ansi": {
      "version": "7.2.0",
      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.2.0.tgz",
      "integrity": "sha512-yDPMNjp4WyfYBkHnjIRLfca1i6KMyGCtsVgoKe/z1+6vukgaENdgGBZt+ZmKPc4gavvEZ5OgHfHdrazhgNyG7w==",
      "license": "MIT",
      "dependencies": {
        "ansi-regex": "^6.2.2"
      },
      "engines": {
        "node": ">=12"
      },
      "funding": {
        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
      }
    },
    "node_modules/strip-ansi-cjs": {
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      "version": "6.0.1",
      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
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      },
      "engines": {
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      }
    },
    "node_modules/strip-ansi-cjs/node_modules/ansi-regex": {
      "version": "5.0.1",
      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
      "license": "MIT",
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/which": {
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      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
      "license": "ISC",
      "dependencies": {
        "isexe": "^2.0.0"
      },
      "bin": {
        "node-which": "bin/node-which"
      },
      "engines": {
        "node": ">= 8"
      }
    },
    "node_modules/wrap-ansi": {
      "version": "8.1.0",
      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz",
      "integrity": "sha512-si7QWI6zUMq56bESFvagtmzMdGOtoxfR+Sez11Mobfc7tm+VkUckk9bW2UeffTGVUbOksxmSw0AA2gs8g71NCQ==",
      "license": "MIT",
      "dependencies": {
        "ansi-styles": "^6.1.0",
        "string-width": "^5.0.1",
        "strip-ansi": "^7.0.1"
      },
      "engines": {
        "node": ">=12"
      },
      "funding": {
        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
      }
    },
    "node_modules/wrap-ansi-cjs": {
      "name": "wrap-ansi",
      "version": "7.0.0",
      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
      "license": "MIT",
      "dependencies": {
        "ansi-styles": "^4.0.0",
        "string-width": "^4.1.0",
        "strip-ansi": "^6.0.0"
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}

{
  "name": "sample-glob",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "glob": "10.5.0"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/glob@10.5.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/glob@10.5.0"
  ]
}

import { glob, globSync, hasMagic, escape, unescape, Glob } from 'glob';

export async function findFiles(pattern, options = {}) {
  return glob(pattern, options);
}

export function findFilesSync(pattern, options = {}) {
  return globSync(pattern, options);
}

export function checkHasMagic(pattern, options = {}) {
  return hasMagic(pattern, options);
}

export function escapePattern(pattern) {
  return escape(pattern);
}

export function unescapePattern(pattern) {
  return unescape(pattern);
}

export { glob, globSync, hasMagic, escape, unescape, Glob };

import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import os from 'node:os';
import { glob, globSync, hasMagic, escape, unescape, Glob } from 'glob';
import {
  findFiles,
  findFilesSync,
  checkHasMagic,
  escapePattern,
  unescapePattern,
} from '../src/index.mjs';

const testDir = fs.mkdtempSync(path.join(os.tmpdir(), 'csx-glob-contract-'));

try {
  fs.mkdirSync(path.join(testDir, 'src', 'nested'), { recursive: true });
  fs.mkdirSync(path.join(testDir, 'docs'), { recursive: true });
  fs.writeFileSync(path.join(testDir, 'src', 'index.js'), 'export default 1;');
  fs.writeFileSync(path.join(testDir, 'src', 'nested', 'helper.js'), 'export const h = 2;');
  fs.writeFileSync(path.join(testDir, 'src', 'data.txt'), 'hello world');
  fs.writeFileSync(path.join(testDir, 'docs', 'README.md'), '# Documentation');

  // 1. glob and globSync match file paths across directory hierarchies using wildcard patterns
  {
    const syncResults = globSync('**/*.js', { cwd: testDir, posix: true });
    assert.deepEqual(syncResults.sort(), ['src/index.js', 'src/nested/helper.js']);

    const asyncResults = await glob('**/*.txt', { cwd: testDir, posix: true });
    assert.deepEqual(asyncResults, ['src/data.txt']);

    const wrapperResults = await findFiles('docs/*.md', { cwd: testDir, posix: true });
    assert.deepEqual(wrapperResults, ['docs/README.md']);
  }

  // 2. globSync excludes paths matching the ignore pattern option
  {
    const filteredSync = globSync('**/*.js', {
      cwd: testDir,
      ignore: '**/nested/**',
      posix: true,
    });
    assert.deepEqual(filteredSync, ['src/index.js']);

    const wrapperFiltered = findFilesSync('**/*', {
      cwd: testDir,
      ignore: ['**/*.js', '**/*.md'],
      nodir: true,
      posix: true,
    });
    assert.deepEqual(wrapperFiltered, ['src/data.txt']);
  }

  // 3. hasMagic accurately detects whether a pattern contains glob magic characters
  {
    assert.equal(hasMagic('**/*.js'), true);
    assert.equal(hasMagic('src/[a-z]/*.js'), true);
    assert.equal(hasMagic('src/plain-file.js'), false);
    assert.equal(hasMagic('{foo,bar}', { magicalBraces: true }), true);
    assert.equal(checkHasMagic('plain/path/file.txt'), false);
    assert.equal(checkHasMagic('file?.txt'), true);
  }

  // 4. escape escapes special pattern characters to match literal bracket and wildcard names
  {
    const escaped1 = escape('path/[file]*.txt');
    assert.equal(escaped1, 'path/\\[file\\]\\*.txt');

    const escaped2 = escapePattern('a*(b|c)');
    assert.equal(escaped2, 'a\\*\\(b|c\\)');
  }

  // 5. unescape reverses escaped pattern strings back to their literal representations
  {
    const original = 'path/[file]*.txt';
    assert.equal(unescape(escape(original)), original);
    assert.equal(unescapePattern('a\\*\\(b|c\\)'), 'a*(b|c)');
  }

  // 6. Glob instance provides stream and iterator interfaces for traversing filesystem matches
  {
    const g = new Glob('**/*.js', { cwd: testDir, posix: true });
    const syncItems = [];
    for (const item of g.iterateSync()) {
      syncItems.push(item);
    }
    assert.deepEqual(syncItems.sort(), ['src/index.js', 'src/nested/helper.js']);

    const asyncItems = [];
    for await (const item of g.iterate()) {
      asyncItems.push(item);
    }
    assert.deepEqual(asyncItems.sort(), ['src/index.js', 'src/nested/helper.js']);
  }

  console.log('Contract tests passed successfully.');
} finally {
  fs.rmSync(testDir, { recursive: true, force: true });
}