main.js

// Base for all `main` tests.
// @ts-check
import { MockAgent, setGlobalDispatcher } from "undici";

export const DEFAULT_ENV = {
  GITHUB_REPOSITORY_OWNER: "actions",
  GITHUB_REPOSITORY: "actions/create-github-app-token",
  // inputs are set as environment variables with the prefix INPUT_
  // https://docs.github.com/actions/creating-actions/metadata-syntax-for-github-actions#example-specifying-inputs
  "INPUT_GITHUB-API-URL": "https://api.github.com",
  "INPUT_APP-ID": "123456",
  // This key is invalidated. It’s from https://github.com/octokit/auth-app.js/issues/465#issuecomment-1564998327.
  "INPUT_PRIVATE-KEY": `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`,
};

export async function test(cb = (_mockPool) => {}, env = DEFAULT_ENV) {
  for (const [key, value] of Object.entries(env)) {
    process.env[key] = value;
  }

  // Set up mocking
  const baseUrl = new URL(env["INPUT_GITHUB-API-URL"]);
  const basePath = baseUrl.pathname === "/" ? "" : baseUrl.pathname;
  const mockAgent = new MockAgent();
  mockAgent.disableNetConnect();
  setGlobalDispatcher(mockAgent);
  const mockPool = mockAgent.get(baseUrl.origin);

  // Calling `auth({ type: "app" })` to obtain a JWT doesn’t make network requests, so no need to intercept.

  // Mock installation ID and app slug request
  const mockInstallationId = "123456";
  const mockAppSlug = "github-actions";
  const owner = env.INPUT_OWNER ?? env.GITHUB_REPOSITORY_OWNER;
  const currentRepoName = env.GITHUB_REPOSITORY.split("/")[1];
  const repo = encodeURIComponent(
    (env.INPUT_REPOSITORIES ?? currentRepoName).split(",")[0]
  );
  mockPool
    .intercept({
      path: `${basePath}/repos/${owner}/${repo}/installation`,
      method: "GET",
      headers: {
        accept: "application/vnd.github.v3+json",
        "user-agent": "actions/create-github-app-token",
        // Intentionally omitting the `authorization` header, since JWT creation is not idempotent.
      },
    })
    .reply(
      200,
      { id: mockInstallationId, app_slug: mockAppSlug },
      { headers: { "content-type": "application/json" } }
    );

  // Mock installation access token request
  const mockInstallationAccessToken =
    "ghs_16C7e42F292c6912E7710c838347Ae178B4a"; // This token is invalidated. It’s from https://docs.github.com/en/rest/apps/apps?apiVersion=2022-11-28#create-an-installation-access-token-for-an-app.
  const mockExpiresAt = "2016-07-11T22:14:10Z";
  mockPool
    .intercept({
      path: `${basePath}/app/installations/${mockInstallationId}/access_tokens`,
      method: "POST",
      headers: {
        accept: "application/vnd.github.v3+json",
        "user-agent": "actions/create-github-app-token",
        // Note: Intentionally omitting the `authorization` header, since JWT creation is not idempotent.
      },
    })
    .reply(
      201,
      { token: mockInstallationAccessToken, expires_at: mockExpiresAt },
      { headers: { "content-type": "application/json" } }
    );

  // Run the callback
  cb(mockPool);

  // Run the main script
  await import("../main.js");
}