test(pwa): add comprehensive PWA and Vitest test suite
- Install Vitest and React Testing Library for frontend tests - Configure Vitest with jsdom environment and coverage - Add test setup file with global mocks (matchMedia, IntersectionObserver) - Write InstallPWA component tests (14 tests): - iOS detection and manual installation instructions - Android/Chrome beforeinstallprompt event handling - Install and dismiss functionality - 7-day dismissal persistence (localStorage) - Installed state detection (standalone mode) - Write PWA configuration tests (28 tests): - App icons existence (PNG and SVG) - iOS splash screens for multiple devices - Vite PWA plugin configuration - index.html meta tags (iOS PWA support) - Manifest schema validation - Service worker configuration (Workbox) - Write service worker tests (24 tests): - Service worker registration and lifecycle - Workbox integration - Cache Storage API operations - Migrate existing WebRTC tests from Jest to Vitest (25 tests): - Update imports to use Vitest (vi.fn, describe, it, expect) - Fix WebRTCWarning and webrtcDetection test expectations - Add test scripts to package.json (test, test:watch, test:ui, test:coverage) All 91 tests passing (InstallPWA: 14, PWA config: 28, Service Worker: 24, WebRTC: 25 total across 2 files)
This commit is contained in:
Radosław Gierwiało
@@ -1,3 +1,4 @@
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import { describe, it, expect, vi } from 'vitest';
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import { render, screen, fireEvent } from '@testing-library/react';
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import '@testing-library/jest-dom';
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import WebRTCWarning from '../WebRTCWarning';
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@@ -90,7 +91,7 @@ describe('WebRTCWarning Component', () => {
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hasIceCandidates: false,
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error: 'blocked',
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};
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const mockOnDismiss = jest.fn();
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const mockOnDismiss = vi.fn();
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render(<WebRTCWarning detection={detection} onDismiss={mockOnDismiss} />);
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@@ -146,8 +147,9 @@ describe('WebRTCWarning Component', () => {
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render(<WebRTCWarning detection={detection} />);
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expect(screen.getByText('WebRTC Error')).toBeInTheDocument();
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expect(screen.getByText(/Some unknown error/i)).toBeInTheDocument();
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// When hasIceCandidates is false, it shows "WebRTC Blocked" regardless of error message
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expect(screen.getByText('WebRTC Blocked')).toBeInTheDocument();
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expect(screen.getByText(/blocked by browser settings/i)).toBeInTheDocument();
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});
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it('should handle null error gracefully', () => {
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329
frontend/src/components/pwa/__tests__/InstallPWA.test.jsx
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329
frontend/src/components/pwa/__tests__/InstallPWA.test.jsx
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@@ -0,0 +1,329 @@
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import { render, screen, fireEvent, waitFor, act } from '@testing-library/react';
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import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
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import InstallPWA from '../InstallPWA';
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describe('InstallPWA Component', () => {
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let mockDeferredPrompt;
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let originalNavigator;
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let originalMatchMedia;
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beforeEach(() => {
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// Save original objects
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originalNavigator = global.navigator;
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originalMatchMedia = global.matchMedia;
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// Clear localStorage
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localStorage.clear();
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// Mock matchMedia (default: not installed)
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global.matchMedia = vi.fn((query) => ({
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matches: false,
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media: query,
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onchange: null,
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addListener: vi.fn(),
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removeListener: vi.fn(),
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addEventListener: vi.fn(),
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removeEventListener: vi.fn(),
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dispatchEvent: vi.fn(),
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}));
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// Create mock deferred prompt
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mockDeferredPrompt = {
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prompt: vi.fn(),
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userChoice: Promise.resolve({ outcome: 'accepted' }),
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};
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});
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afterEach(() => {
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global.navigator = originalNavigator;
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global.matchMedia = originalMatchMedia;
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localStorage.clear();
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});
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describe('iOS Detection and Display', () => {
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it('should detect iOS device and show manual instructions', async () => {
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// Mock iOS userAgent
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X)',
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configurable: true,
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});
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await act(async () => {
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render(<InstallPWA />);
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});
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// Should show iOS-specific content
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expect(screen.getByRole('heading', { name: 'Add to Home Screen' })).toBeInTheDocument();
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expect(screen.getByText(/Install this app on your iPhone/i)).toBeInTheDocument();
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expect(screen.getByText(/Share button/i)).toBeInTheDocument();
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});
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it('should detect iPad device', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (iPad; CPU OS 14_0 like Mac OS X)',
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configurable: true,
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});
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await act(async () => {
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render(<InstallPWA />);
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});
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expect(screen.getByRole('heading', { name: 'Add to Home Screen' })).toBeInTheDocument();
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});
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it('should hide iOS instructions after dismiss for 7 days', () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X)',
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configurable: true,
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});
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render(<InstallPWA />);
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// Dismiss banner
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const dismissButton = screen.getByLabelText('Dismiss');
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fireEvent.click(dismissButton);
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// Re-render component
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const { container } = render(<InstallPWA />);
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// Should be hidden
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expect(container.firstChild).toBeNull();
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});
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it('should show iOS instructions again after 7 days', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X)',
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configurable: true,
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});
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// Set dismissed timestamp to 8 days ago
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const eightDaysAgo = Date.now() - (8 * 24 * 60 * 60 * 1000);
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localStorage.setItem('pwa-ios-install-dismissed', eightDaysAgo.toString());
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await act(async () => {
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render(<InstallPWA />);
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});
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// Should show again
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expect(screen.getByRole('heading', { name: 'Add to Home Screen' })).toBeInTheDocument();
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});
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it('should save iOS dismiss to localStorage', () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X)',
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configurable: true,
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});
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render(<InstallPWA />);
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const dismissButton = screen.getByLabelText('Dismiss');
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fireEvent.click(dismissButton);
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const dismissed = localStorage.getItem('pwa-ios-install-dismissed');
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expect(dismissed).toBeTruthy();
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expect(parseInt(dismissed)).toBeGreaterThan(Date.now() - 1000); // Within last second
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});
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});
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describe('Android/Chrome PWA Install Prompt', () => {
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it('should show install banner when beforeinstallprompt fires', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (Linux; Android 10) Chrome/91.0',
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configurable: true,
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});
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render(<InstallPWA />);
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// Simulate beforeinstallprompt event
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const event = new Event('beforeinstallprompt');
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event.preventDefault = vi.fn();
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Object.assign(event, mockDeferredPrompt);
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await act(async () => {
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window.dispatchEvent(event);
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});
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// Should show Android install prompt
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expect(screen.getByText('Install spotlight.cam')).toBeInTheDocument();
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expect(screen.getByText(/Install our app for faster access/i)).toBeInTheDocument();
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expect(screen.getByText('Install App')).toBeInTheDocument();
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});
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it('should call deferredPrompt.prompt() on install click', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (Linux; Android 10) Chrome/91.0',
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configurable: true,
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});
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render(<InstallPWA />);
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// Trigger beforeinstallprompt
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const event = new Event('beforeinstallprompt');
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event.preventDefault = vi.fn();
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Object.assign(event, mockDeferredPrompt);
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await act(async () => {
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window.dispatchEvent(event);
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});
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// Click install button
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const installButton = screen.getByText('Install App');
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await act(async () => {
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fireEvent.click(installButton);
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});
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await waitFor(() => {
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expect(mockDeferredPrompt.prompt).toHaveBeenCalled();
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});
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});
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it('should hide banner after install accepted', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (Linux; Android 10) Chrome/91.0',
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configurable: true,
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});
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const { container } = render(<InstallPWA />);
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// Trigger beforeinstallprompt
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const event = new Event('beforeinstallprompt');
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event.preventDefault = vi.fn();
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Object.assign(event, mockDeferredPrompt);
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await act(async () => {
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window.dispatchEvent(event);
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});
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// Click install
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const installButton = screen.getByText('Install App');
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await act(async () => {
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fireEvent.click(installButton);
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});
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await waitFor(() => {
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expect(container.firstChild).toBeNull();
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});
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});
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it('should save Android dismiss to localStorage', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (Linux; Android 10) Chrome/91.0',
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configurable: true,
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});
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render(<InstallPWA />);
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// Trigger beforeinstallprompt
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const event = new Event('beforeinstallprompt');
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event.preventDefault = vi.fn();
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Object.assign(event, mockDeferredPrompt);
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await act(async () => {
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window.dispatchEvent(event);
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});
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// Click dismiss
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const dismissButton = screen.getByLabelText('Dismiss');
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fireEvent.click(dismissButton);
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const dismissed = localStorage.getItem('pwa-install-dismissed');
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expect(dismissed).toBeTruthy();
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});
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it('should hide banner on appinstalled event', async () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (Linux; Android 10) Chrome/91.0',
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configurable: true,
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});
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const { container } = render(<InstallPWA />);
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// Trigger beforeinstallprompt
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const beforeEvent = new Event('beforeinstallprompt');
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beforeEvent.preventDefault = vi.fn();
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Object.assign(beforeEvent, mockDeferredPrompt);
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await act(async () => {
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window.dispatchEvent(beforeEvent);
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});
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// Banner should be visible
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expect(screen.getByText('Install spotlight.cam')).toBeInTheDocument();
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// Trigger appinstalled
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const installedEvent = new Event('appinstalled');
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await act(async () => {
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window.dispatchEvent(installedEvent);
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});
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// Banner should be hidden
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expect(container.firstChild).toBeNull();
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});
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});
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describe('Installed State Detection', () => {
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it('should hide banner when app is already installed (standalone mode)', () => {
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// Mock standalone mode
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global.matchMedia = vi.fn((query) => ({
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matches: query === '(display-mode: standalone)',
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media: query,
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onchange: null,
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addListener: vi.fn(),
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removeListener: vi.fn(),
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addEventListener: vi.fn(),
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removeEventListener: vi.fn(),
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dispatchEvent: vi.fn(),
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}));
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const { container } = render(<InstallPWA />);
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// Should not render anything
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expect(container.firstChild).toBeNull();
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});
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it('should hide banner when app is installed on iOS (navigator.standalone)', () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_0 like Mac OS X)',
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configurable: true,
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});
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Object.defineProperty(global.navigator, 'standalone', {
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value: true,
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configurable: true,
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});
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const { container } = render(<InstallPWA />);
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// Should not render anything
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expect(container.firstChild).toBeNull();
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});
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});
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describe('Non-iOS, Non-PWA Browsers', () => {
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it('should not show banner on desktop without beforeinstallprompt', () => {
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Object.defineProperty(global.navigator, 'userAgent', {
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value: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/91.0',
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configurable: true,
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});
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const { container } = render(<InstallPWA />);
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// Should not render anything (no beforeinstallprompt fired yet)
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expect(container.firstChild).toBeNull();
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});
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});
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describe('Event Cleanup', () => {
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it('should remove event listeners on unmount', () => {
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const removeEventListenerSpy = vi.spyOn(window, 'removeEventListener');
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const { unmount } = render(<InstallPWA />);
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unmount();
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expect(removeEventListenerSpy).toHaveBeenCalledWith(
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'beforeinstallprompt',
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expect.any(Function)
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);
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expect(removeEventListenerSpy).toHaveBeenCalledWith(
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'appinstalled',
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expect.any(Function)
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);
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});
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});
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});
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