Index: test/embed-resolver.test.js
===================================================================
--- test/embed-resolver.test.js (revision 6bc2e31be027c19ca280d49b79711d4e4a1952db)
+++ test/embed-resolver.test.js (revision 0101d0a23f8210828d4680832a5f1d30b5772d63)
@@ -120,2 +120,45 @@
assert.ok(calls.some((c) => c[1].includes('activity+json')), 'AP asks for activity+json');
});
+
+// OpenGraph: the one that actually carries link previews on the open web.
+// oEmbed is richer, but most sites simply do not ship it, which is why cards
+// stayed empty until this fallback existed.
+const OG_PAGE = ''
+ + ''
+ + '';
+
+test('findOpenGraph reads og:image/title/site and decodes entities', async () => {
+ const { findOpenGraph } = await import('../src/services/EmbedResolver.js');
+ const og = findOpenGraph(OG_PAGE);
+ assert.equal(og.image, 'https://lg.example/tux.png');
+ assert.equal(og.site, 'Linux Guides');
+ assert.ok(og.title.startsWith('Linux f'));
+ assert.equal(findOpenGraph('x'), null);
+ assert.equal(findOpenGraph(null), null);
+});
+
+test('findOpenGraph falls back to twitter:image and refuses a non-http image', async () => {
+ const { findOpenGraph } = await import('../src/services/EmbedResolver.js');
+ const tw = findOpenGraph('');
+ assert.equal(tw.image, 'https://x/y.png');
+ const bad = findOpenGraph('');
+ assert.equal(bad.image, null, 'a non-http image is dropped, the title survives');
+ assert.equal(bad.title, 'T');
+});
+
+test('oEmbed still wins over OpenGraph when a page offers both', async () => {
+ const both = OEMBED_PAGE.replace('', '');
+ const r = await resolveEmbed('https://v.example/1', io({
+ getPage: async () => both, getJSON: async () => OEMBED_JSON,
+ }));
+ assert.equal(r.kind, 'oembed');
+ assert.equal(r.title, 'A talk');
+});
+
+test('a page with only OpenGraph yields a thumbnail card', async () => {
+ const r = await resolveEmbed('https://lg.example/artikel', io({ getPage: async () => OG_PAGE }));
+ assert.equal(r.kind, 'opengraph');
+ assert.equal(r.media[0].url, 'https://lg.example/tux.png');
+ assert.equal(r.provider, 'Linux Guides');
+ assert.equal(r.url, 'https://lg.example/artikel');
+});