Nick:

apps/api/package.json

@@ -26,6 +26,7 @@
   "license": "ISC",
   "devDependencies": {
     "@flydotio/dockerfile": "^0.4.10",
+    "@jest/globals": "^29.7.0",
     "@tsconfig/recommended": "^1.0.3",
     "@types/body-parser": "^1.19.2",
     "@types/bull": "^4.10.0",

apps/api/pnpm-lock.yaml

@@ -192,6 +192,9 @@ importers:
       '@flydotio/dockerfile':
         specifier: ^0.4.10
         version: 0.4.11
+      '@jest/globals':
+        specifier: ^29.7.0
+        version: 29.7.0
       '@tsconfig/recommended':
         specifier: ^1.0.3
         version: 1.0.6

apps/api/src/scraper/WebScraper/__tests__/dns.test.ts

@@ -0,0 +1,15 @@
+import CacheableLookup  from 'cacheable-lookup';
+import https from 'node:https';
+import axios from "axios";
+
+describe("DNS", () => {
+  it("cached dns", async () => {
+    const cachedDns = new CacheableLookup();
+    cachedDns.install(https.globalAgent);
+    jest.spyOn(cachedDns, "lookupAsync");
+
+    const res = await axios.get("https://example.com");
+    expect(res.status).toBe(200);
+    expect(cachedDns.lookupAsync).toHaveBeenCalled();
+  });
+});