youtubeDownloader/server/test/videoSummary.test.ts

import { describe, expect, it } from 'vitest';
import { summarizeEntry } from '../src/services/videoSummary.js';

const base = { id: 'abc', title: 'Titre', url: 'https://www.youtube.com/watch?v=abc' };

describe('summarizeEntry', () => {
	it('extrait les champs connus et met null pour les champs absents', () => {
		expect(summarizeEntry(base)).toEqual({
			...base,
			thumbnailUrl: null,
			durationSeconds: null,
			uploadDate: null,
		});
	});

	it('lit durée et date de mise en ligne quand elles sont bien typées', () => {
		const summary = summarizeEntry({ ...base, duration: 120, upload_date: '20260101' });

		expect(summary?.durationSeconds).toBe(120);
		expect(summary?.uploadDate).toBe('20260101');
	});

	it('ignore une durée ou une date de mauvais type', () => {
		const summary = summarizeEntry({ ...base, duration: '120', upload_date: 20260101 });

		expect(summary?.durationSeconds).toBeNull();
		expect(summary?.uploadDate).toBeNull();
	});

	it('préfère le champ singulier thumbnail au tableau thumbnails', () => {
		const summary = summarizeEntry({
			...base,
			thumbnail: 'https://x/single.jpg',
			thumbnails: [{ url: 'https://x/array.jpg' }],
		});

		expect(summary?.thumbnailUrl).toBe('https://x/single.jpg');
	});

	it('retombe sur la dernière miniature du tableau thumbnails', () => {
		const summary = summarizeEntry({
			...base,
			thumbnails: [{ url: 'https://x/small.jpg' }, { url: 'https://x/large.jpg' }],
		});

		expect(summary?.thumbnailUrl).toBe('https://x/large.jpg');
	});

	it('ignore un tableau thumbnails vide ou mal formé', () => {
		expect(summarizeEntry({ ...base, thumbnails: [] })?.thumbnailUrl).toBeNull();
		expect(summarizeEntry({ ...base, thumbnails: [{ width: 10 }] })?.thumbnailUrl).toBeNull();
		expect(summarizeEntry({ ...base, thumbnails: [null] })?.thumbnailUrl).toBeNull();
	});

	it.each([
		['sans id', { title: 'T', url: 'https://x' }],
		['sans titre', { id: 'a', url: 'https://x' }],
		['sans url', { id: 'a', title: 'T' }],
		['avec un id non textuel', { id: 42, title: 'T', url: 'https://x' }],
	])('retourne null pour une entrée %s', (_label, entry) => {
		expect(summarizeEntry(entry)).toBeNull();
	});

	it.each([null, undefined, 'texte', 42, [], [base]])(
		'retourne null pour une valeur qui n’est pas un objet (%j)',
		(value) => {
			expect(summarizeEntry(value)).toBeNull();
		},
	);
});