test: Add tests to verify 'main' gets a token.

Author: smockle

tests/main-token-get.test.js

@@ -0,0 +1,78 @@
+// @ts-check
+import { MockAgent, setGlobalDispatcher } from "undici";
+
+// Set required environment variables and inputs
+process.env.GITHUB_REPOSITORY = "actions/create-github-app-token";
+// inputs are set as environment variables with the prefix INPUT_
+// https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#example-specifying-inputs
+process.env.INPUT_APP_ID = "123456";
+process.env.INPUT_PRIVATE_KEY = `-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----`; // This key is invalidated. It’s from https://github.com/octokit/auth-app.js/issues/465#issuecomment-1564998327.
+
+// Set up mocking
+const mockAgent = new MockAgent();
+mockAgent.disableNetConnect();
+setGlobalDispatcher(mockAgent);
+const mockPool = mockAgent.get("https://api.github.com");
+
+// Calling `auth({ type: "app" })` to obtain a JWT doesn’t make network requests, so no need to intercept.
+
+// Mock installation id request
+const mockInstallationId = "123456";
+mockPool
+  .intercept({
+    path: `/repos/${process.env.GITHUB_REPOSITORY}/installation`,
+    method: "GET",
+    headers: {
+      accept: "application/vnd.github.v3+json",
+      "user-agent": "actions/create-github-app-token",
+      // Intentionally omitting the `authorization` header, since JWT creation is not idempotent.
+    },
+  })
+  .reply(
+    200,
+    { id: mockInstallationId },
+    { headers: { "content-type": "application/json" } }
+  );
+
+// Mock installation access token request
+const mockInstallationAccessToken = "ghs_16C7e42F292c6912E7710c838347Ae178B4a"; // This token is invalidated. It’s from https://docs.github.com/en/rest/apps/apps?apiVersion=2022-11-28#create-an-installation-access-token-for-an-app.
+mockPool
+  .intercept({
+    path: `/app/installations/${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 });
+
+// Run the main script
+await import("../main.js");

tests/snapshots/index.js.md

@@ -14,6 +14,19 @@ Generated by [AVA](https://avajs.dev).
 
     ''
 
+## main-token-get.test.js
+
+> stderr
+
+    ''
+
+> stdout
+
+    `::add-mask::␊
+    ␊
+    ::set-output name=token::␊
+    ::save-state name=token::`
+
 ## post-token-set.test.js
 
 > stderr