chore: configure vitest with project-based setup and coverage

apps/api/tsconfig.json

@@ -2,8 +2,12 @@
   "extends": "../../tsconfig.base.json",
   "references": [
     { "path": "../../packages/shared" },
-    { "path": "../../packages/db" }
+    { "path": "../../packages/db" },
   ],
-  "compilerOptions": { "module": "NodeNext", "moduleResolution": "NodeNext" },
-  "include": ["src"]
+  "compilerOptions": {
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "types": ["vitest/globals"],
+  },
+  "include": ["src"],
 }

apps/api/vitest.config.ts

@@ -0,0 +1,3 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({ test: { environment: "node", globals: true } });

apps/web/package.json

@@ -5,5 +5,8 @@
   "type": "module",
   "dependencies": {
     "@glossa/shared": "workspace:*"
+  },
+  "devDependencies": {
+    "jsdom": "^29.0.1"
   }
 }

apps/web/tsconfig.json

@@ -1,4 +1,5 @@
 {
   "extends": "../../tsconfig.base.json",
-  "references": [{ "path": "../../packages/shared" }]
+  "references": [{ "path": "../../packages/shared" }],
+  "compilerOptions": { "module": "ESNext", "moduleResolution": "bundler" },
 }

apps/web/vitest.config.ts

@@ -0,0 +1,3 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({ test: { environment: "jsdom", globals: true } });

documentation/roadmap.md

@@ -11,8 +11,8 @@ Each phase produces a working, deployable increment. Nothing is built speculativ
 
 - [x] Initialise pnpm workspace monorepo: `apps/web`, `apps/api`, `packages/shared`, `packages/db`
 - [x] Configure TypeScript project references across packages
-- [ ] Set up ESLint + Prettier with shared configs in root
-- [ ] Set up Vitest in `api` and `web`
+- [x] Set up ESLint + Prettier with shared configs in root
+- [x] Set up Vitest in `api` and `web` and both packages
 - [ ] Scaffold Express app with `GET /api/health`
 - [ ] Scaffold Vite + React app with TanStack Router (single root route)
 - [ ] Configure Drizzle ORM + connection to local PostgreSQL

package.json

@@ -5,7 +5,8 @@
   "private": true,
   "scripts": {
     "dev": "concurrently \"pnpm --filter @glossa/web run dev\" \"pnpm --filter @glossa/api run dev\"",
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "vitest",
+    "test:run": "vitest run",
     "lint": "eslint .",
     "format": "prettier --write .",
     "format:check": "prettier --check ."
@@ -13,11 +14,13 @@
   "packageManager": "pnpm@10.32.1",
   "devDependencies": {
     "@eslint/js": "^10.0.1",
+    "@vitest/coverage-v8": "^4.1.0",
     "concurrently": "^9.2.1",
     "eslint": "^10.0.3",
     "eslint-config-prettier": "^10.1.8",
     "prettier": "^3.8.1",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.57.1"
+    "typescript-eslint": "^8.57.1",
+    "vitest": "^4.1.0"
   }
 }

packages/db/tsconfig.json

@@ -3,7 +3,8 @@
   "compilerOptions": {
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
-    "outDir": "./dist"
+    "outDir": "./dist",
+    "types": ["vitest/globals"],
   },
-  "include": ["src"]
+  "include": ["src"],
 }

packages/db/vitest.config.ts

@@ -0,0 +1,3 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({ test: { environment: "node", globals: true } });

packages/shared/tsconfig.json

@@ -3,7 +3,8 @@
   "compilerOptions": {
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
-    "outDir": "./dist"
+    "outDir": "./dist",
+    "types": ["vitest/globals"],
   },
-  "include": ["src"]
+  "include": ["src"],
 }

packages/shared/vitest.config.ts

@@ -0,0 +1,3 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({ test: { environment: "node", globals: true } });

vitest.config.ts

@@ -0,0 +1,13 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    projects: ["packages/*", "apps/*"],
+    coverage: {
+      provider: "v8",
+      reporter: ["text", "json", "html"],
+      exclude: ["node_modules/", "dist/"],
+    },
+    passWithNoTests: true,
+  },
+});