add e2e tests and its workflow

Author: devserkan

.github/workflows/pipeline.yml

@@ -14,15 +14,17 @@ jobs:
         with:
           node-version: '20'
       #   - uses: superfly/flyctl-actions/setup-flyctl@master
-      - name: Install dependencies for frontend
-        working-directory: ./frontend
+      - name: Install dependencies
         run: npm ci
+      - name: Install dependencies for frontend
+        run: npm run install:frontend
       - name: Check style for frontend
-        working-directory: ./frontend
-        run: npm run lint
+        run: npm run lint:frontend
       - name: Build for frontend
-        working-directory: ./frontend
-        run: npm run build
+        run: npm run build:frontend
       - name: Test for frontend
-        working-directory: ./frontend
-        run: npm run test
+        run: npm run test:frontend
+      - name: Install Playwright Browsers
+        run: npx playwright install --with-deps
+      - name: e2e tests
+        run: npm run test:e2e

.gitignore

@@ -16,4 +16,8 @@ yarn-error.log*
 
 # OS generated files
 .DS_Store
-Thumbs.db
+Thumbs.db
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/

e2e-tests/homepage.spec.js

@@ -0,0 +1,8 @@
+// @ts-check
+const { test, expect } = require('@playwright/test');
+
+test('has anecdotes title', async ({ page }) => {
+  await page.goto('');
+
+  await expect(page.getByText('Anecdotes')).toBeVisible();
+});

package-lock.json

@@ -6,9 +6,11 @@
     "start": "node src/app.js",
     "dev": "nodemon src/app.js",
     "start:frontend": "cd frontend && npm run dev",
-    "install:frontend": "cd frontend && npm install",
+    "install:frontend": "cd frontend && npm ci",
+    "lint:frontend": "cd frontend && npm run lint",
     "build:frontend": "cd frontend && npm run build",
-    "test:frontend": "cd frontend && npm test"
+    "test:frontend": "cd frontend && npm test",
+    "test:e2e": "playwright test"
   },
   "keywords": [],
   "author": "",
@@ -20,6 +22,8 @@
     "uuid": "^10.0.0"
   },
   "devDependencies": {
+    "@playwright/test": "^1.47.1",
+    "@types/node": "^22.5.5",
     "nodemon": "^3.1.4"
   }
 }

package.json

@@ -0,0 +1,84 @@
+// @ts-check
+const { defineConfig, devices } = require('@playwright/test');
+
+/**
+ * Read environment variables from file.
+ * https://github.com/motdotla/dotenv
+ */
+// require('dotenv').config({ path: path.resolve(__dirname, '.env') });
+
+/**
+ * @see https://playwright.dev/docs/test-configuration
+ */
+module.exports = defineConfig({
+  testDir: './e2e-tests',
+  /* Run tests in files in parallel */
+  fullyParallel: false,
+  /* 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',
+  webServer: {
+    command: 'npm run start',
+    url: 'http://127.0.0.1:3000',
+    timeout: 120 * 1000,
+    reuseExistingServer: !process.env.CI,
+  },
+  /* 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://127.0.0.1:3000',
+
+    /* 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 start',
+  //   url: 'http://127.0.0.1:3000',
+  //   reuseExistingServer: !process.env.CI,
+  // },
+});