feat: setup Vitest and adding tests

Author: ErwannRousseau

eslint.config.js

@@ -4,6 +4,8 @@ import reactRefresh from 'eslint-plugin-react-refresh'
 import globals from 'globals'
 import tseslint from 'typescript-eslint'
 import stylistic from '@stylistic/eslint-plugin'
+import vitest from '@vitest/eslint-plugin'
+import testingLibrary from 'eslint-plugin-testing-library'
 
 export default tseslint.config(
   {

package.json

@@ -8,7 +8,10 @@
     "build": "tsc -b && vite build",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest --run",
+    "test:watch": "vitest",
+    "test:coverage": "vitest run --coverage"
   },
   "dependencies": {
     "@emotion/react": "^11.14.0",
@@ -25,18 +28,26 @@
   "devDependencies": {
     "@eslint/js": "^9.23.0",
     "@stylistic/eslint-plugin": "^4.2.0",
+    "@testing-library/jest-dom": "^6.6.3",
+    "@testing-library/react": "^16.2.0",
+    "@testing-library/user-event": "^14.6.1",
     "@types/node": "^22.13.11",
     "@types/react": "^19.0.12",
     "@types/react-dom": "^19.0.4",
     "@vitejs/plugin-react": "^4.3.4",
+    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/eslint-plugin": "^1.1.39",
     "eslint": "^9.23.0",
     "eslint-plugin-react": "^7.37.4",
     "eslint-plugin-react-hooks": "^5.2.0",
     "eslint-plugin-react-refresh": "^0.4.19",
+    "eslint-plugin-testing-library": "^7.1.1",
     "globals": "^16.0.0",
+    "jsdom": "^26.0.0",
     "typescript": "^5.8.2",
     "typescript-eslint": "^8.27.0",
-    "vite": "^6.2.0"
+    "vite": "^6.2.0",
+    "vitest": "^3.1.1"
   },
   "packageManager": "[email protected]+sha512.cdf928fca20832cd59ec53826492b7dc25dc524d4370b6b4adbf65803d32efaa6c1c88147c0ae4e8d579a6c9eec715757b50d4fa35eea179d868eada4ed043af"
 }