Update jest config and setup, add timetableControllers.test.ts

Author: minhhaitran08

course-matrix/backend/__tests__/timetablesController.test.ts

@@ -16,6 +16,7 @@ const config: Config = {
     ],
     "^.+\\.(js|jsx)$": "babel-jest",
   },
+  setupFilesAfterEnv: ["<rootDir>/jest.setup.ts"],
 };
 
 export default config;

course-matrix/backend/jest.config.ts

@@ -0,0 +1,10 @@
+import fetch from "node-fetch";
+
+// Polyfill the global fetch for Pinecone to use
+globalThis.fetch = fetch as unknown as WindowOrWorkerGlobalScope["fetch"];
+globalThis.TransformStream = require("stream/web").TransformStream;
+globalThis.TextEncoder = require("util").TextEncoder;
+globalThis.TextDecoder = require("util").TextDecoder;
+globalThis.ReadableStream = require("stream/web").ReadableStream;
+globalThis.TransformStream = require("stream/web").TransformStream;
+globalThis.WritableStream = require("stream/web").WritableStream;