Files
gerbeur/api/test/remote/providers/youtube.test.ts
khannurien 2c3ba6ad11 v4: link previews are read once, in one place, and no longer take an error page, a relative image or a mask icon for the page's — each provider fetched its page and scanned it with regular expressions of its own, the generic one some fifteen times, and Bandcamp and SoundCloud read only OG tags. fetchPage (remote/fetch.ts) now fetches every page, follows redirects to the address it was served from, and refuses an error status, so a 404 or a bot challenge is unreachable rather than a preview titled "Just a moment...", and a refresh no longer overwrites good metadata with it. parsePage (remote/html.ts) reads it in one linear pass with a real attribute reader: unquoted values, a > inside quotes, og: tags under name as well as property, and nothing from comments or scripts. Every URL a page names is resolved against where it was served from, so a relative og:image works; entities are decoded in one pass, &eacute; and &rsquo; included, and one that names no character no longer fails the preview (bandcamp-tralbum.ts shares the decoder). The mask icon is no longer the favicon, JSON-LD prefers the page's node over the site's, tracking pixels and lazy placeholders aren't thumbnails, an og:url with a slug keeps the OG tags, and a <title> loses its site suffix. genericPreview is the base of the Bandcamp, SoundCloud and YouTube channel previews; SoundCloud takes www., m. and on.soundcloud.com short links, embedding the page they lead to, and Bandcamp keeps only its own player. The service tidies every preview: text on one line, titles and descriptions capped, only http(s) images and players. RichContent.type is now RichContentType, and the unused videoId is gone.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-09 20:46:32 +00:00

73 lines
2.6 KiB
TypeScript

import { html, stubNetwork } from "../../helpers.ts";
import { assert, assertEquals, assertFalse } from "@std/assert";
import { fetchRichContent } from "../../../services/rich-content-service.ts";
import { youtubeProvider } from "../../../remote/providers/youtube.ts";
Deno.test("youtube provider: video with start time and playlist", async () => {
using net = stubNetwork((url) =>
url.pathname === "/oembed"
? Response.json({ title: "Never Gonna", thumbnail_url: "ignored" })
: new Response(null, { status: 404 })
);
const content = await fetchRichContent(
"https://www.youtube.com/watch?v=dQw4w9WgXcQ&list=PL123&t=1m30s",
);
assertEquals(content?.type, "youtube");
assertEquals(content?.title, "Never Gonna");
assertEquals(
content?.thumbnailUrl,
"https://img.youtube.com/vi/dQw4w9WgXcQ/hqdefault.jpg",
);
assertEquals(
content?.embedUrl,
"https://www.youtube.com/embed/dQw4w9WgXcQ?rel=0&list=PL123&start=90",
);
assertEquals(net.calls[0].hostname, "www.youtube.com");
});
Deno.test("youtube provider: youtu.be, shorts, playlists and channels", async () => {
using _ = stubNetwork((url) =>
url.pathname === "/oembed"
? Response.json({
title: "T",
thumbnail_url: "https://i.ytimg.com/x.jpg",
})
: html(`<meta property="og:title" content="Channel">
<meta property="og:image" content="https://yt3/ch.jpg">`)
);
assertEquals(
(await fetchRichContent("https://youtu.be/abc123?t=42"))?.embedUrl,
"https://www.youtube.com/embed/abc123?rel=0&start=42",
);
assertEquals(
(await fetchRichContent("https://youtube.com/shorts/xyz"))?.embedUrl,
"https://www.youtube.com/embed/xyz?rel=0",
);
const list = await fetchRichContent(
"https://www.youtube.com/playlist?list=PLabc",
);
assertEquals(
list?.embedUrl,
"https://www.youtube.com/embed/videoseries?list=PLabc&rel=0",
);
assertEquals(list?.thumbnailUrl, "https://i.ytimg.com/x.jpg");
const channel = await fetchRichContent("https://www.youtube.com/@someone");
assertEquals(channel?.title, "Channel");
assertEquals(channel?.embedUrl, undefined);
});
Deno.test("youtube provider: every YouTube host, and no other site's list", () => {
for (
const url of [
"https://m.youtube.com/watch?v=dQw4w9WgXcQ",
"https://music.youtube.com/watch?v=dQw4w9WgXcQ",
"https://www.youtube-nocookie.com/embed/dQw4w9WgXcQ",
"https://www.youtube.com/live/dQw4w9WgXcQ",
"https://m.youtube.com/@someone",
]
) {
assert(youtubeProvider.matches(url), url);
}
assertFalse(youtubeProvider.matches("https://example.com/page?list=PL123"));
});