Generate test coverage

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v4
       - run: npm install
       - run: npm run lint
-      - run: npm run test
+      - run: npm run test-ci
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3
         env:

.gitignore

@@ -6,4 +6,6 @@ node_modules
 /public/build
 .env
 
-.dev.vars
+.dev.vars
+
+coverage

package.json

@@ -10,6 +10,7 @@
     "lint": "eslint --ignore-path .gitignore --cache --cache-location ./node_modules/.cache/eslint .",
     "start": "wrangler dev ./build/index.js",
     "test": "vitest run",
+    "test-ci": "vitest run --coverage",
     "typecheck": "tsc",
     "prepare": "husky install"
   },
@@ -40,6 +41,8 @@
     "@types/recharts": "^1.8.29",
     "@types/ua-parser-js": "^0.7.39",
     "@typescript-eslint/eslint-plugin": "^6.7.4",
+    "@vitest/coverage-istanbul": "^1.2.0",
+    "@vitest/coverage-v8": "^1.2.0",
     "autoprefixer": "^10.4.16",
     "eslint": "^8.38.0",
     "eslint-config-prettier": "^9.0.0",
@@ -58,4 +61,4 @@
   "engines": {
     "node": ">=18.0.0"
   }
-}
+}

vitest.config.js

@@ -0,0 +1,10 @@
+// vitest.config.ts
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    coverage: {
+      provider: 'v8' // or 'v8'
+    },
+  },
+})