tests: add pin card performance test (anuraghazra#3374)

tests/bench/pin.bench.js

@@ -0,0 +1,50 @@
+import { benchmarkSuite } from "jest-bench";
+import pin from "../../api/pin.js";
+import axios from "axios";
+import MockAdapter from "axios-mock-adapter";
+import { jest } from "@jest/globals";
+
+const data_repo = {
+  repository: {
+    username: "anuraghazra",
+    name: "convoychat",
+    stargazers: {
+      totalCount: 38000,
+    },
+    description: "Help us take over the world! React + TS + GraphQL Chat App",
+    primaryLanguage: {
+      color: "#2b7489",
+      id: "MDg6TGFuZ3VhZ2UyODc=",
+      name: "TypeScript",
+    },
+    forkCount: 100,
+    isTemplate: false,
+  },
+};
+
+const data_user = {
+  data: {
+    user: { repository: data_repo.repository },
+    organization: null,
+  },
+};
+
+const mock = new MockAdapter(axios);
+mock.onPost("https://api.github.com/graphql").reply(200, data_user);
+
+benchmarkSuite("test /api/pin", {
+  ["simple request"]: async () => {
+    const req = {
+      query: {
+        username: "anuraghazra",
+        repo: "convoychat",
+      },
+    };
+    const res = {
+      setHeader: jest.fn(),
+      send: jest.fn(),
+    };
+
+    await pin(req, res);
+  },
+});