Add Playwright tests and GitHub Actions.

Author: MichaelMaio

.github/workflows/playwright.yml

@@ -0,0 +1,67 @@
+name: CI - Build, Test, Deploy
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: TypeScript check
+        run: npm run typecheck
+
+      - name: Build app for validation
+        run: npm run build
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps
+
+      - name: Run Playwright tests
+        run: npx playwright test
+
+      - name: Upload Playwright report
+        uses: actions/upload-artifact@v4
+        if: ${{ !cancelled() }}
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 7
+
+  deploy:
+    needs: build-and-test
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build React app
+        run: npm run build
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dist

.gitignore

@@ -1 +1,9 @@
-/node_modules
+# Playwright
+node_modules/
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/
+
+# Vite build output
+dist/

README.md

@@ -24,9 +24,9 @@ CSS Styling and layout
 │ └── images/
 │ └── quarter.png
 │ └── money/
-│ └── images/
-│ ├── coke.png
-│ └── pepsi.png
+│ ├── images/
+│ | ├── coke.png
+│ | └── pepsi.png
 ├── src/
 │ ├── components/
 │ │ ├── ErrorMessage.tsx

package-lock.json

@@ -1,18 +1,20 @@
 {
-  "name": "VendingMachine",
+  "name": "vending-machine",
   "version": "1.0.0",
   "private": true,
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "typecheck": "tsc --noEmit"
   },
   "dependencies": {
     "react": "^19.1.0",
-    "react-dom": "^19.1.0",
-    "react-scripts": "^0.0.0"
+    "react-dom": "^19.1.0"
   },
   "devDependencies": {
+    "@playwright/test": "^1.54.1",
+    "@types/node": "^24.1.0",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
     "@vitejs/plugin-react": "^4.7.0",

package.json

@@ -0,0 +1,79 @@
+import { defineConfig, devices } from '@playwright/test';
+
+/**
+ * Read environment variables from file.
+ * https://github.com/motdotla/dotenv
+ */
+// import dotenv from 'dotenv';
+// import path from 'path';
+// dotenv.config({ path: path.resolve(__dirname, '.env') });
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+  testDir: './tests',
+  /* Run tests in files in parallel */
+  fullyParallel: true,
+  /* Fail the build on CI if you accidentally left test.only in the source code. */
+  forbidOnly: !!process.env.CI,
+  /* Retry on CI only */
+  retries: process.env.CI ? 2 : 0,
+  /* Opt out of parallel tests on CI. */
+  workers: process.env.CI ? 1 : undefined,
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: 'html',
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    /* Base URL to use in actions like `await page.goto('/')`. */
+    // baseURL: 'http://localhost:3000',
+
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: 'on-first-retry',
+  },
+
+  /* Configure projects for major browsers */
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+
+    {
+      name: 'firefox',
+      use: { ...devices['Desktop Firefox'] },
+    },
+
+    {
+      name: 'webkit',
+      use: { ...devices['Desktop Safari'] },
+    },
+
+    /* Test against mobile viewports. */
+    // {
+    //   name: 'Mobile Chrome',
+    //   use: { ...devices['Pixel 5'] },
+    // },
+    // {
+    //   name: 'Mobile Safari',
+    //   use: { ...devices['iPhone 12'] },
+    // },
+
+    /* Test against branded browsers. */
+    // {
+    //   name: 'Microsoft Edge',
+    //   use: { ...devices['Desktop Edge'], channel: 'msedge' },
+    // },
+    // {
+    //   name: 'Google Chrome',
+    //   use: { ...devices['Desktop Chrome'], channel: 'chrome' },
+    // },
+  ],
+
+  /* Run your local dev server before starting the tests */
+   webServer: {
+     command: 'npm run dev',
+     url: 'http://localhost:5173/',
+     reuseExistingServer: !process.env.CI,
+   },
+});

playwright.config.ts

@@ -23,7 +23,7 @@ const MoneySlot = ({ amountInserted, onInsertQuarter }: Props) => {
 
       {/* Display the current amount of money inserted */}
       <div className="money-display" data-testid="money-display">
-        ${amountInserted}
+        ${amountInserted.toFixed(2)}
       </div>
     </div>
   );

src/components/MoneySlot.tsx

@@ -21,9 +21,9 @@ const ProductList = ({ products, onPurchase }: Props) => {
     <table data-testid="product-table"> {/* Table element for displaying products */}
       <thead> {/* Table header row */}
         <tr>
-          <th>Product</th>
-          <th>Price</th>
-          <th>Remaining</th>
+          <th data-testid="product-header">Product</th>
+          <th data-testid="price-header">Price</th>
+          <th data-testid="remaining-header">Remaining</th>
         </tr>
       </thead>
       <tbody>