add: tests

.github/workflows/test.yml

@@ -0,0 +1,76 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Run tests
+        run: bun run test
+
+      - name: Run tests with coverage
+        run: bun run test:coverage
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage/lcov.info
+          fail_ci_if_error: false
+          verbose: true
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Lint
+        run: bun run lint
+
+  typecheck:
+    name: Type Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Type check
+        run: bun run typecheck

package.json

@@ -26,6 +26,9 @@
     "build:cli": "bun build src/cli/init.ts --outdir dist/cli --target node --format esm --external @clack/prompts && chmod +x dist/cli/init.js",
     "build:types": "tsc -p tsconfig.build.json",
     "typecheck": "tsc --noEmit",
+    "test": "vitest run",
+    "test:watch": "vitest watch",
+    "test:coverage": "vitest run --coverage",
     "format": "biome format --write .",
     "format:check": "biome format .",
     "lint": "biome lint --write .",
@@ -61,9 +64,11 @@
     "@types/bun": "latest",
     "@types/node": "^24.10.0",
     "@vercel/sandbox": "^1.0.4",
+    "@vitest/coverage-v8": "^3.0.0",
     "ai": "^6.0.0",
     "parallel-web": "^0.2.4",
-    "typescript": "^5.9.3"
+    "typescript": "^5.9.3",
+    "vitest": "^3.0.0"
   },
   "peerDependencies": {
     "ai": ">=5.0.0",