// src/sources/free/nilcoalescing.test.ts
import { describe, it, expect, vi, beforeEach } from 'vitest';
import NilCoalescingSource from '../nilcoalescing.js';
vi.mock('rss-parser', () => {
return {
default: class Parser {
async parseURL(_url: string) {
return {
items: [
{
guid: '1',
title: 'SwiftUI Navigation Patterns',
link: 'https://example.com/1',
pubDate: '2026-01-01',
contentSnippet: 'Navigation and layout tips for SwiftUI',
content: '<p>Some content <code>NavigationStack</code></p>',
},
{
guid: '2',
title: 'Snapshot Testing in Swift',
link: 'https://example.com/2',
pubDate: '2026-01-02',
contentSnippet: 'Snapshot testing for UIKit and SwiftUI',
content: '<p>Testing <pre>assertSnapshot()</pre></p>',
},
],
};
}
},
};
});
vi.mock('../../../utils/cache.js', () => ({
rssCache: {
get: vi.fn(async () => undefined),
set: vi.fn(async () => undefined),
},
}));
describe('NilCoalescingSource', () => {
let source: NilCoalescingSource;
beforeEach(() => {
source = new NilCoalescingSource();
});
it('fetches and parses patterns', async () => {
const patterns = await source.fetchPatterns();
expect(patterns).toHaveLength(2);
expect(patterns[0].title).toBe('SwiftUI Navigation Patterns');
expect(patterns[0].topics).toContain('swiftui');
expect(patterns[1].topics).toContain('testing');
expect(patterns[0].hasCode).toBe(true);
expect(patterns[1].hasCode).toBe(true);
});
it('calculates relevance score', async () => {
const patterns = await source.fetchPatterns();
expect(patterns[0].relevanceScore).toBeGreaterThanOrEqual(66);
expect(patterns[1].relevanceScore).toBeGreaterThanOrEqual(66);
});
it('searchPatterns returns relevant results', async () => {
const results = await source.searchPatterns('snapshot');
expect(results[0].title).toMatch(/snapshot/i);
expect(results[0].topics).toContain('testing');
});
});
