/**
* Tests for WWDC topics extractor
*/
import { extractAllTopics as extractWWDCTopics } from '../../../src/tools/wwdc/topics-extractor';
import { httpClient } from '../../../src/utils/http-client';
// Mock http client
jest.mock('../../../src/utils/http-client');
const mockHttpClient = httpClient as jest.Mocked<typeof httpClient>;
describe('WWDC Topics Extractor', () => {
beforeEach(() => {
jest.clearAllMocks();
});
test('should extract all topics', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/swiftui-ui-frameworks">
<h3>SwiftUI & UI Frameworks</h3>
<p>50 videos</p>
</a>
</section>
<section class="topic-section">
<a href="/videos/topics/machine-learning-ai">
<h3>Machine Learning & AI</h3>
<p>30 videos</p>
</a>
</section>
<section class="topic-section">
<a href="/videos/topics/app-store-distribution">
<h3>App Store & Distribution</h3>
<p>15 videos</p>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result).toHaveLength(3);
// Results are sorted alphabetically
expect(result[0]).toMatchObject({
id: 'app-store-distribution',
name: 'App Store & Distribution',
url: 'https://developer.apple.com/videos/topics/app-store-distribution',
videoCount: 15,
});
expect(result[1]).toMatchObject({
id: 'machine-learning-ai',
name: 'Machine Learning & AI',
videoCount: 30,
});
expect(result[2]).toMatchObject({
id: 'swiftui-ui-frameworks',
name: 'SwiftUI & UI Frameworks',
videoCount: 50,
});
});
test('should handle topics without video count', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/new-topic">
<h3>New Topic</h3>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result[0]).toMatchObject({
id: 'new-topic',
name: 'New Topic',
videoCount: 0,
});
});
test('should extract topic ID from URL correctly', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/swift-language">
<h3>Swift Language</h3>
</a>
</section>
<section class="topic-section">
<a href="https://developer.apple.com/videos/topics/testing-debugging">
<h3>Testing & Debugging</h3>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result.map(t => t.id)).toEqual(['swift-language', 'testing-debugging']);
});
test('should handle empty topics list', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<!-- No topics -->
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result).toEqual([]);
});
test('should handle malformed video count', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/test-topic">
<h3>Test Topic</h3>
<p>many videos</p>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result[0].videoCount).toBe(0);
});
test('should handle HTTP errors', async () => {
mockHttpClient.get.mockRejectedValue(new Error('404 Not Found'));
await expect(extractWWDCTopics()).rejects.toThrow('Failed to extract topics');
});
test('should sort topics alphabetically', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/z-topic">
<h3>Z Topic</h3>
</a>
</section>
<section class="topic-section">
<a href="/videos/topics/a-topic">
<h3>A Topic</h3>
</a>
</section>
<section class="topic-section">
<a href="/videos/topics/m-topic">
<h3>M Topic</h3>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result.map(t => t.name)).toEqual(['A Topic', 'M Topic', 'Z Topic']);
});
test('should handle special characters in topic names', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/privacy-security">
<h3>Privacy & Security</h3>
</a>
</section>
<section class="topic-section">
<a href="/videos/topics/ar-vr">
<h3>AR/VR Technologies</h3>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
// Results are sorted alphabetically
expect(result[0].name).toBe('AR/VR Technologies');
expect(result[1].name).toBe('Privacy & Security');
});
test('should skip invalid topic entries', async () => {
const mockHtml = `
<!DOCTYPE html>
<html>
<body>
<div class="topics-grid">
<section class="topic-section">
<a href="/videos/topics/valid-topic">
<h3>Valid Topic</h3>
</a>
</section>
<section class="topic-section">
<!-- Missing href -->
<a>
<h3>Invalid Topic</h3>
</a>
</section>
<section class="topic-section">
<!-- Invalid URL -->
<a href="/invalid/url/format">
<h3>Another Invalid</h3>
</a>
</section>
</div>
</body>
</html>
`;
mockHttpClient.get.mockResolvedValue({
text: jest.fn().mockResolvedValue(mockHtml),
} as any);
const result = await extractWWDCTopics();
expect(result).toHaveLength(1);
expect(result[0].id).toBe('valid-topic');
});
});
