add github workflow lint-and-test action

.github/workflows/tests.yml

@@ -0,0 +1,31 @@
+name: lint-and-test
+run-name: lint and test
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["*"]
+
+jobs:
+  lint-and-test:
+    name: Lint and Test
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Set up Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: 22
+
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+
+    - name: Install Dependencies
+      run: npm install
+
+    - name: Run ESLint
+      run: npm run eslint
+
+    - name: Run Mocha Tests
+      run: npm run mocha

README.md

@@ -18,6 +18,13 @@
             <img alt="License"
                  src="https://img.shields.io/static/v1?style=for-the-badge&labelColor=000000&label=License&message=MIT&color=3DA639">
         </a>
+        <br>
+        <br>
+        <a aria-label="Unit Tests"
+           href="https://github.com/stepanjakl/apostrophe-stripe-products/actions/workflows/tests.yml">
+            <img alt="Unit Tests"
+                 src="https://github.com/stepanjakl/apostrophe-stripe-products/actions/workflows/tests.yml/badge.svg?branch=main)">
+        </a>
     </p>
 </div>