Add Playwright smoke tests to CI workflow

.github/workflows/ci.yml

@@ -33,3 +33,25 @@ jobs:
 
       - name: Validate generated site
         run: bundle exec htmlproofer ./_site --disable-external --no-enforce-https --allow-missing-href --ignore-urls '/^\/\//'
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Install Playwright dependencies
+        run: npm ci
+
+      - name: Install Playwright browser
+        run: npx playwright install --with-deps chromium
+
+      - name: Run Playwright smoke tests
+        run: npm run test:e2e
+
+      - name: Upload Playwright report
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: playwright-report
+          path: playwright-report/

.gitignore

@@ -8,3 +8,6 @@ vendor
 
 # Script output
 tmp/pending_updates.yml
+node_modules
+playwright-report
+test-results

package.json

@@ -0,0 +1,10 @@
+{
+  "name": "testingconferences.github.io",
+  "private": true,
+  "scripts": {
+    "test:e2e": "playwright test"
+  },
+  "devDependencies": {
+    "@playwright/test": "1.62.1"
+  }
+}

playwright.config.js

@@ -0,0 +1,14 @@
+const { defineConfig } = require('@playwright/test');
+
+module.exports = defineConfig({
+  testDir: './test/playwright',
+  reporter: process.env.CI ? [['html', { open: 'never' }], ['github']] : 'list',
+  use: {
+    baseURL: 'http://127.0.0.1:4173'
+  },
+  webServer: {
+    command: 'python3 -m http.server 4173 --bind 127.0.0.1 --directory _site',
+    port: 4173,
+    reuseExistingServer: !process.env.CI
+  }
+});

test/playwright/site-smoke.spec.js

@@ -0,0 +1,26 @@
+const { test, expect } = require('@playwright/test');
+
+test.describe('site smoke checks', () => {
+  test('API: key pages return success responses', async ({ request, baseURL }) => {
+    for (const path of ['/', '/past/', '/subscribe/']) {
+      const response = await request.get(`${baseURL}${path}`);
+      expect(response.ok(), `${path} should return success`).toBeTruthy();
+    }
+  });
+
+  test('UI: homepage renders nav links', async ({ page }) => {
+    await page.goto('/');
+
+    await expect(page).toHaveTitle(/Software Testing Conferences/);
+    await expect(page.getByRole('link', { name: 'Upcoming' })).toBeVisible();
+    await expect(page.getByRole('link', { name: 'Past' })).toBeVisible();
+    await expect(page.getByRole('link', { name: 'Newsletter', exact: true })).toBeVisible();
+  });
+
+  test('UI: past page lists conferences', async ({ page }) => {
+    await page.goto('/past/');
+
+    await expect(page).toHaveURL(/\/past\/$/);
+    await expect(page.locator('ul.post-list li').first()).toBeVisible();
+  });
+});