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const { test } = require('node:test');
const assert = require('node:assert');
const { scrapeNowPlaying } = require('../now-playing');
const emptyDoc = { querySelector: () => null };
function nav(metadata, playbackState) {
return { mediaSession: { metadata, playbackState } };
}
test('reads track info from the Media Session when the player bar is absent', () => {
const result = scrapeNowPlaying(
emptyDoc,
nav(
{
title: 'DOMINO',
artist: 'Stray Kids',
album: '',
artwork: [
{ src: 'small.jpg', sizes: '60x60' },
{ src: 'big.jpg', sizes: '544x544' },
],
},
'playing'
)
);
assert.deepStrictEqual(result, {
title: 'DOMINO',
artist: 'Stray Kids',
albumArt: 'big.jpg',
isPlaying: true,
});
});
test('reports isPlaying false when the Media Session is paused', () => {
const result = scrapeNowPlaying(emptyDoc, nav({ title: 'T', artist: 'A', artwork: [] }, 'paused'));
assert.strictEqual(result.isPlaying, false);
assert.strictEqual(result.albumArt, null);
});
test('returns null when nothing is loaded anywhere', () => {
assert.strictEqual(scrapeNowPlaying(emptyDoc, nav(null, 'none')), null);
assert.strictEqual(scrapeNowPlaying(emptyDoc, {}), null);
});
test('falls back to the legacy player-bar DOM when Media Session has no metadata', () => {
const els = {
'ytmusic-player-bar .title': { textContent: ' Old Song ' },
'ytmusic-player-bar .byline': { textContent: 'Old Artist' },
'ytmusic-player-bar img.image': { src: 'art.jpg' },
'#play-pause-button': { getAttribute: (n) => (n === 'title' ? 'Pause' : null) },
};
const doc = { querySelector: (s) => els[s] || null };
assert.deepStrictEqual(scrapeNowPlaying(doc, nav(null, 'none')), {
title: 'Old Song',
artist: 'Old Artist',
albumArt: 'art.jpg',
isPlaying: true,
});
});