fix: update jest polyfill and setup

https://github.com/testing-library/jest-dom/releases/tag/v6.0.0

jest.config.js

@@ -14,6 +14,7 @@ const customJestConfig = {
     isows: "<rootDir>/node_modules/isows/_cjs/index.js", // https://github.com/wagmi-dev/viem/issues/1329
     tinykeys: "<rootDir>/node_modules/tinykeys/dist/tinykeys.js",
   },
+  setupFiles: ["<rootDir>/jest.polyfills.js"],
   setupFilesAfterEnv: ["<rootDir>/jest.setup.js"],
   testEnvironment: "jest-environment-jsdom",
   testPathIgnorePatterns: [

jest.polyfills.js

@@ -0,0 +1,28 @@
+// https://mswjs.io/docs/faq/#referenceerror-fetch-is-not-defined-in-nodejs
+// https://mswjs.io/docs/faq/#requestresponsetextencoder-is-not-defined-jest
+
+const { ReadableStream } = require("stream/web");
+const { clearImmediate, setImmediate } = require("timers");
+const { TextDecoder, TextEncoder } = require("util");
+
+Object.defineProperties(global, {
+  ReadableStream: { value: ReadableStream },
+  TextDecoder: { value: TextDecoder },
+  TextEncoder: { value: TextEncoder },
+  clearImmediate: { value: clearImmediate },
+  setImmediate: { value: setImmediate },
+});
+
+const { Blob, File } = require("buffer");
+const { fetch, FormData, Headers, Request, Response } = require("undici");
+
+Object.defineProperties(global, {
+  Blob: { value: Blob },
+  File: { value: File },
+  FormData: { value: FormData },
+  Headers: { value: Headers },
+  Request: { value: Request },
+  ResizeObserver: { value: require("resize-observer-polyfill") },
+  Response: { value: Response },
+  fetch: { value: fetch, writable: true },
+});

jest.setup.js

@@ -1,9 +1,4 @@
-import "@testing-library/jest-dom/extend-expect";
-
-global.ResizeObserver = require("resize-observer-polyfill");
-
-// eslint-disable-next-line @typescript-eslint/no-var-requires
-global.TextEncoder = require("util").TextEncoder;
+import "@testing-library/jest-dom";
 
 // suppress zustand deprecation notice to clear out logs
 global.console.warn = (...args) =>

package.json

@@ -74,6 +74,7 @@
     "react-dom": "^18.2.0",
     "tailwindcss": "^3.3.6",
     "tinykeys": "^2.1.0",
+    "undici": "^6.0.1",
     "viem": "^1.19.13",
     "wagmi": "^1.4.10",
     "zod": "^3.22.4",