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playwright.config.js

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+import { defineConfig, devices } from '@playwright/test'
+
+/**
+ * Playwright configuration for E2E tests.
+ * Tests live streaming flow: Mobile Safari (publisher) → Desktop Chrome/Firefox (viewer)
+ */
+export default defineConfig({
+  testDir: './test/e2e',
+  fullyParallel: false, // WebRTC tests need sequential execution
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 1,
+  workers: 1, // Run tests sequentially for WebRTC
+  reporter: 'html',
+  globalSetup: './test/e2e/global-setup.js',
+  globalTeardown: './test/e2e/global-teardown.js',
+  use: {
+    baseURL: 'https://localhost:3000',
+    ignoreHTTPSErrors: true, // Accept self-signed certs from .dev-certs/
+    trace: 'on-first-retry',
+    screenshot: 'only-on-failure',
+    video: 'retain-on-failure',
+  },
+  projects: [
+    {
+      name: 'mobile-safari',
+      use: {
+        ...devices['iPhone 13'],
+        // Use WebKit for Safari-like behavior (actual Safari requires macOS)
+        channel: 'webkit',
+        permissions: ['geolocation'],
+        geolocation: { latitude: 37.7749, longitude: -122.4194 },
+      },
+    },
+    {
+      name: 'desktop-chrome',
+      use: {
+        ...devices['Desktop Chrome'],
+        launchOptions: {
+          args: [
+            '--use-fake-ui-for-media-stream',
+            '--use-fake-device-for-media-stream',
+          ],
+        },
+      },
+    },
+    {
+      name: 'desktop-firefox',
+      use: {
+        ...devices['Desktop Firefox'],
+      },
+    },
+  ],
+  webServer: {
+    command: 'npm run dev',
+    url: 'https://localhost:3000/health',
+    reuseExistingServer: true, // Always reuse existing server for E2E tests
+    timeout: 120 * 1000, // 2 minutes for server startup
+    ignoreHTTPSErrors: true,
+  },
+  timeout: 60 * 1000, // 60 seconds per test (WebRTC setup takes time)
+})