tests: add pin endpoint proper cache header test (anuraghazra#3260)

tests/pin.test.js

@@ -4,7 +4,7 @@ import axios from "axios";
 import MockAdapter from "axios-mock-adapter";
 import pin from "../api/pin.js";
 import { renderRepoCard } from "../src/cards/repo-card.js";
-import { renderError } from "../src/common/utils.js";
+import { renderError, CONSTANTS } from "../src/common/utils.js";
 import { expect, it, describe, afterEach } from "@jest/globals";
 
 const data_repo = {
@@ -199,4 +199,28 @@ describe("Test /api/pin", () => {
  ),
  );
  });
+
+ it("should have proper cache", async () => {
+ const req = {
+ query: {
+ username: "anuraghazra",
+ repo: "convoychat",
+ },
+ };
+ const res = {
+ setHeader: jest.fn(),
+ send: jest.fn(),
+ };
+ mock.onPost("https://api.github.com/graphql").reply(200, data_user);
+
+ await pin(req, res);
+
+ expect(res.setHeader).toBeCalledWith("Content-Type", "image/svg+xml");
+ expect(res.setHeader).toBeCalledWith(
+ "Cache-Control",
+ `max-age=${CONSTANTS.SIX_HOURS / 2}, s-maxage=${
+ CONSTANTS.SIX_HOURS
+ }, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
+ );
+ });
 });