fix: delegate multi-line digit selection to visible overlay (#78)

src/main/runtime/youtube-playback.test.ts

@@ -1,6 +1,11 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
-import { isYoutubeMediaPath, isYoutubePlaybackActive } from './youtube-playback';
+import {
+  isSameYoutubeMediaPath,
+  isYoutubeMediaPath,
+  isYoutubePlaybackActive,
+  shouldUseCachedYoutubeParsedCues,
+} from './youtube-playback';
 
 test('isYoutubeMediaPath detects youtube watch and short urls', () => {
   assert.equal(isYoutubeMediaPath('https://www.youtube.com/watch?v=abc123'), true);
@@ -22,3 +27,49 @@ test('isYoutubePlaybackActive checks both current media and mpv video paths', ()
   assert.equal(isYoutubePlaybackActive('https://www.youtube.com/watch?v=abc123', null), true);
   assert.equal(isYoutubePlaybackActive('/tmp/video.mkv', '/tmp/video.mkv'), false);
 });
+
+test('isSameYoutubeMediaPath matches equivalent youtube urls by video id', () => {
+  assert.equal(
+    isSameYoutubeMediaPath('https://www.youtube.com/watch?v=abc123&t=30', 'https://youtu.be/abc123'),
+    true,
+  );
+  assert.equal(
+    isSameYoutubeMediaPath(
+      'https://www.youtube.com/embed/abc123',
+      'https://www.youtube-nocookie.com/embed/abc123',
+    ),
+    true,
+  );
+  assert.equal(
+    isSameYoutubeMediaPath('https://www.youtube.com/watch?v=abc123', 'https://youtu.be/xyz789'),
+    false,
+  );
+  assert.equal(isSameYoutubeMediaPath('/tmp/video.mkv', 'https://youtu.be/abc123'), false);
+});
+
+test('shouldUseCachedYoutubeParsedCues requires cached cues for the same youtube video', () => {
+  assert.equal(
+    shouldUseCachedYoutubeParsedCues({
+      videoPath: 'https://www.youtube.com/watch?v=abc123&t=30',
+      cachedMediaPath: 'https://youtu.be/abc123',
+      cachedCueCount: 12,
+    }),
+    true,
+  );
+  assert.equal(
+    shouldUseCachedYoutubeParsedCues({
+      videoPath: 'https://www.youtube.com/watch?v=abc123',
+      cachedMediaPath: 'https://youtu.be/abc123',
+      cachedCueCount: 0,
+    }),
+    false,
+  );
+  assert.equal(
+    shouldUseCachedYoutubeParsedCues({
+      videoPath: 'https://www.youtube.com/watch?v=abc123',
+      cachedMediaPath: 'https://youtu.be/other',
+      cachedCueCount: 12,
+    }),
+    false,
+  );
+});