CodeSampleX

Beispiel

@puppeteer/browsers 2.8.0: resolve build id and compute executable path with @puppeteer/browsers

Verifiziertes Beispiel für npm @puppeteer/browsers 2.8.0: resolve build id and compute executable path with @puppeteer/browsers. Der Vertrag lief auf node 22…

sha256:883049150ded59e8319c796e262d3736814949bd5e64d5a6dd25babd06e05db5

Dieses Netzwerk bietet eine Sache: ein Sample, das baut. Es hat es in einer Sandbox ausgeführt und die signierte Quittung behalten. Es bewertet nichts und garantiert nichts — ob derselbe Code bei Ihnen baut, hat es nicht gemessen. Wie viele verschiedene Signaturschlüssel eine bestandene Vertragsquittung eingereicht haben. Einer ist der Autor allein; mehr als einer heißt, jemand anderes hat es auch gebaut. Ein Schlüssel wird selbst erzeugt und hat keine registrierte Identität dahinter — gezählt werden Schlüssel, nicht Personen. MIT-0

Ausführungsbelege

Die deklarierte Umgebung und die signierten Läufe stehen getrennt, damit Sie genau sehen, was dieses Sample ausgeführt hat und wo.

Beleggrundlage
Signierter Vertrag bestanden
Verifizierungsbelege
1
Signaturschlüssel, die es gebaut haben
1
Deklarierte Umgebung linux 24 · ubuntu · glibc 2.39 x64 npm

Umgebungen der Verifizierungsläufe

Umgebung Contract Stufen Lauf
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-23

Fall

HOW
Ziel
resolve build id and compute executable path with @puppeteer/browsers
Pakete
Symbole
  • Browser
  • BrowserPlatform
  • computeExecutablePath
  • detectBrowserPlatform
  • resolveBuildId
Erstellt
2026-08-23T15:50:59Z

Contract

  1. assert Browser and BrowserPlatform define valid identifiers for browsers and platforms
  2. assert detectBrowserPlatform identifies the current execution platform
  3. assert computeExecutablePath calculates correct relative executable paths for Chrome, Firefox, and ChromeDriver across platforms
  4. assert resolveBuildId resolves build and version identifiers offline without network requests

Dateien

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Quellartefakt herunterladen (tar.gz)

Quelltext

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: resolve build id and compute executable path with @puppeteer/browsers
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40puppeteer/browsers@2.8.0
Demonstrate these symbols/APIs:
  - Browser
  - BrowserPlatform
  - computeExecutablePath
  - detectBrowserPlatform
  - resolveBuildId

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:sha256:3e582f8807dbca5bc7469050ecef64310cefc78708ddac8c62ead6c971348719","contract":["assert Browser and BrowserPlatform define valid identifiers for browsers and platforms","assert detectBrowserPlatform identifies the current execution platform","assert computeExecutablePath calculates correct relative executable paths for Chrome, Firefox, and ChromeDriver across platforms","assert resolveBuildId resolves build and version identifiers offline without network requests"],"goal":"resolve build id and compute executable path with @puppeteer/browsers","kind":"HOW","packages":["pkg:npm/%40puppeteer/browsers@2.8.0"],"schemaVersion":1,"symbols":["Browser","BrowserPlatform","computeExecutablePath","detectBrowserPlatform","resolveBuildId"]},"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/%40puppeteer/browsers@2.8.0"],"schemaVersion":1,"subject":"pkg:npm/%40puppeteer/browsers@2.8.0","symbols":["Browser","BrowserPlatform","computeExecutablePath","detectBrowserPlatform","resolveBuildId"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
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spec.json
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  "kind": "HOW",
  "packages": [
    "pkg:npm/%40puppeteer/browsers@2.8.0"
  ],
  "symbols": [
    "Browser",
    "BrowserPlatform",
    "computeExecutablePath",
    "detectBrowserPlatform",
    "resolveBuildId"
  ]
}
test/contract.mjs
import assert from "node:assert/strict";
import {
  Browser,
  BrowserPlatform,
  computeExecutablePath,
  detectBrowserPlatform,
  resolveBuildId,
} from "@puppeteer/browsers";

// Contract 1: Browser and BrowserPlatform define valid identifiers for browsers and platforms
assert.equal(Browser.CHROME, "chrome");
assert.equal(Browser.FIREFOX, "firefox");
assert.equal(Browser.CHROMIUM, "chromium");
assert.equal(Browser.CHROMEDRIVER, "chromedriver");
assert.equal(Browser.CHROMEHEADLESSSHELL, "chrome-headless-shell");

assert.equal(BrowserPlatform.LINUX, "linux");
assert.equal(BrowserPlatform.LINUX_ARM, "linux_arm");
assert.equal(BrowserPlatform.MAC, "mac");
assert.equal(BrowserPlatform.MAC_ARM, "mac_arm");
assert.equal(BrowserPlatform.WIN32, "win32");
assert.equal(BrowserPlatform.WIN64, "win64");

// Contract 2: detectBrowserPlatform identifies the current execution platform
const currentPlatform = detectBrowserPlatform();
assert.ok(typeof currentPlatform === "string");
assert.ok(Object.values(BrowserPlatform).includes(currentPlatform));

// Contract 3: computeExecutablePath calculates correct relative executable paths for Chrome, Firefox, and ChromeDriver across platforms
const chromeLinuxPath = computeExecutablePath({
  browser: Browser.CHROME,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  chromeLinuxPath,
  "local-cache/chrome/linux-123.0.6312.86/chrome-linux64/chrome"
);

const chromeWinPath = computeExecutablePath({
  browser: Browser.CHROME,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.WIN64,
});
assert.equal(
  chromeWinPath,
  "local-cache/chrome/win64-123.0.6312.86/chrome-win64/chrome.exe"
);

const firefoxLinuxPath = computeExecutablePath({
  browser: Browser.FIREFOX,
  buildId: "125.0",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  firefoxLinuxPath,
  "local-cache/firefox/linux-125.0/firefox/firefox"
);

const driverLinuxPath = computeExecutablePath({
  browser: Browser.CHROMEDRIVER,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  driverLinuxPath,
  "local-cache/chromedriver/linux-123.0.6312.86/chromedriver-linux64/chromedriver"
);

const headlessShellLinuxPath = computeExecutablePath({
  browser: Browser.CHROMEHEADLESSSHELL,
  buildId: "123.0.6312.86",
  cacheDir: "./local-cache",
  platform: BrowserPlatform.LINUX,
});
assert.equal(
  headlessShellLinuxPath,
  "local-cache/chrome-headless-shell/linux-123.0.6312.86/chrome-headless-shell-linux64/chrome-headless-shell"
);

// Contract 4: resolveBuildId resolves build and version identifiers offline without network requests
const resolvedFirefox = await resolveBuildId(
  Browser.FIREFOX,
  BrowserPlatform.LINUX,
  "125.0"
);
assert.equal(resolvedFirefox, "125.0");

const resolvedChromium = await resolveBuildId(
  Browser.CHROMIUM,
  BrowserPlatform.LINUX,
  "1234567"
);
assert.equal(resolvedChromium, "1234567");

const resolvedChrome = await resolveBuildId(
  Browser.CHROME,
  BrowserPlatform.LINUX,
  "123.0.6312.86"
);
assert.equal(resolvedChrome, "123.0.6312.86");

console.log("Contract verified: all assertions passed.");

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