feat: add end to end testing system

.github/workflows/playwright.yml

@@ -0,0 +1,33 @@
+name: Playwright Tests
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+jobs:
+  test:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+      - name: Install dependencies
+        run: npm ci
+      - name: Start Projects
+        run: |
+          npm run build -- --no-cache
+          npm start
+      - name: Install Playwright Browsers
+        run: npx playwright install --with-deps
+      - name: Sleep For 30 Seconds
+        run: sleep 30
+      - name: Run Playwright tests
+        run: npx playwright test
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 30

.gitignore

@@ -6,4 +6,9 @@ apps/stock-price-checker-proxy/cache/
 apps/twitch-proxy/.data/
 apps/twitch-proxy/.logs/
 Caddyfile
-.eslintcache
+.eslintcache
+
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/

e2e/cash-register.test.js

@@ -0,0 +1,16 @@
+const { test, expect } = require('@playwright/test');
+const fs = require('fs');
+const path = require('path');
+
+const portMap = require('../port-map.json');
+
+const name = fs
+  .readdirSync(path.join(__dirname, '../apps'))
+  .filter(name => name === 'cash-register')[0];
+
+const portNum = portMap[name];
+
+test('has title', async ({ page }) => {
+  await page.goto(`http://localhost:${portNum}`);
+  await expect(page).toHaveTitle(/Cash Register/);
+});

package.json

@@ -15,10 +15,14 @@
     "start": "docker compose up -d",
     "stop": "docker compose down",
     "prepare": "husky install",
-    "test": "jest"
+    "test": "jest",
+    "playwright:run": "playwright test",
+    "playwright:watch": "playwright test --ui"
   },
   "devDependencies": {
+    "@playwright/test": "^1.46.1",
     "@types/jest": "^29.5.10",
+    "@types/node": "^22.5.2",
     "axios": "1.7.4",
     "eslint-config-prettier": "8.7.0",
     "eslint-plugin-react": "7.34.0",

playwright.config.js

@@ -0,0 +1,77 @@
+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',
+  /* 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://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,
+  // },
+});