feature: added jest config

jest.config.ts

@@ -0,0 +1,24 @@
+import type { Config } from "jest"
+
+import nextJest from "next/jest.js"
+
+const createJestConfig = nextJest({
+	dir: "./",
+})
+
+const config: Config = {
+	coverageProvider: "v8",
+	testEnvironment: "jsdom",
+	setupFilesAfterEnv: ["<rootDir>/jest.setup.ts"],
+	moduleNameMapper: {
+		"@app/(.*)$": "<rootDir>/src/app/$1",
+		"@entities/(.*)$": "<rootDir>/src/entities/$1",
+		"@features/(.*)$": "<rootDir>/src/features/$1",
+		"@pagesLayer/(.*)$": "<rootDir>/src/pagesLayer/$1",
+		"@shared/(.*)$": "<rootDir>/src/shared/$1",
+		"@widgets/(.*)$": "<rootDir>/src/widgets/$1",
+		"@/(.*)$": "<rootDir>/src/$1",
+	},
+}
+
+export default createJestConfig(config)

jest.setup.ts

@@ -0,0 +1 @@
+import "@testing-library/jest-dom"

package.json

@@ -12,7 +12,9 @@
     "build": "next build",
     "start": "next start",
     "lint": "next lint",
-		"lint:prettier": "prettier . --write"
+    "lint:prettier": "prettier . --write",
+	"test": "jest",
+	"test:watch": "jest --watch"
   },
   "dependencies": {
     "next": "14.2.3",