diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 34f6fea..1bf3e8f 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -13,5 +13,8 @@
         "vitest.explorer"
       ]
     }
+  },
+  "features": {
+    "ghcr.io/anthropics/devcontainer-features/claude-code:1.0.5": {}
   }
 }
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..641fb83
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,49 @@
+name: Test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x, 22.x]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: latest
+          run_install: false
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run lint
+        run: pnpm run lint
+
+      - name: Run tests with coverage
+        run: pnpm run test:cov
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage/coverage-final.json
+          slug: onozaty/prisma-db-comments-generator
+
+      - name: Build
+        run: pnpm run build
diff --git a/README.md b/README.md
index 16ae55d..faf31c9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,9 @@
 # prisma-db-comments-generator
 
+[![Test](https://github.com/onozaty/prisma-db-comments-generator/actions/workflows/test.yml/badge.svg)](https://github.com/onozaty/prisma-db-comments-generator/actions/workflows/test.yml)
+[![codecov](https://codecov.io/gh/onozaty/prisma-db-comments-generator/graph/badge.svg?token=406L0D8MI0)](https://codecov.io/gh/onozaty/prisma-db-comments-generator)
+[![npm version](https://badge.fury.io/js/@onozaty%2Fprisma-db-comments-generator.svg)](https://badge.fury.io/js/@onozaty%2Fprisma-db-comments-generator)
+
 Generate database comments from Prisma schema.
 
 It is based on the following code idea. Thank you @Jyrno42 .
diff --git a/package.json b/package.json
index e2f7784..ead5b23 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "build": "rm -rf dist/ && node build.js",
     "prepare": "pnpm run build",
     "format": "prettier --write src/**",
-    "lint": "eslint src/**",
+    "lint": "eslint 'src/**/*.ts' --ignore-pattern 'src/__fixtures__/**'",
     "test": "vitest run",
     "test:cov": "vitest run --coverage",
     "db:migrate": "prisma migrate dev && prisma generate && pnpm run db:deploy",