feat: project init

jest.config.json

@@ -1,4 +1,5 @@
-{
+{ 
+    "setupFiles" : ["./jest.setup.ts"],
     "clearMocks": true,
     "coverageDirectory": "coverage",
     "collectCoverage": true,

jest.setup.ts

@@ -0,0 +1,23 @@
+// jest.setup.js
+import { TextDecoder, TextEncoder } from 'node:util';
+import { ReadableStream, TransformStream } from 'node:stream/web';
+
+Object.defineProperties(globalThis, {
+    TextDecoder: { value: TextDecoder },
+    TextEncoder: { value: TextEncoder },
+    ReadableStream: { value: ReadableStream },
+    TransformStream: { value: TransformStream },
+});
+
+import { Blob, File } from 'node:buffer';
+import { fetch, Headers, FormData, Request, Response } from 'undici';
+
+Object.defineProperties(globalThis, {
+    fetch: { value: fetch, writable: true },
+    Blob: { value: Blob },
+    File: { value: File },
+    Headers: { value: Headers },
+    FormData: { value: FormData },
+    Request: { value: Request },
+    Response: { value: Response },
+});