test: cut low-value tests, rewrite the rest around behavior, parallelize lanes (#285)

src/main/runtime/autoplay-subtitle-priming-runtime.test.ts

@@ -3,35 +3,7 @@ import test from 'node:test';
 import { parseSubtitleCues } from '../../core/services/subtitle-cue-parser';
 import { createSubtitleProcessingController } from '../../core/services/subtitle-processing-controller';
 import type { SubtitleData } from '../../types';
-import {
-  createAutoplaySubtitlePrimingRuntime,
-  setMpvCurrentSecondarySubText,
-} from './autoplay-subtitle-priming-runtime';
-
-test('setMpvCurrentSecondarySubText uses client setter when available', () => {
-  const calls: string[] = [];
-  const client = {
-    currentSecondarySubText: '',
-    setCurrentSecondarySubText: (text: string) => {
-      calls.push(text);
-    },
-  };
-
-  setMpvCurrentSecondarySubText(client, 'secondary');
-
-  assert.deepEqual(calls, ['secondary']);
-  assert.equal(client.currentSecondarySubText, '');
-});
-
-test('setMpvCurrentSecondarySubText updates client property when setter is unavailable', () => {
-  const client = {
-    currentSecondarySubText: '',
-  };
-
-  setMpvCurrentSecondarySubText(client, 'secondary');
-
-  assert.equal(client.currentSecondarySubText, 'secondary');
-});
+import { createAutoplaySubtitlePrimingRuntime } from './autoplay-subtitle-priming-runtime';
 
 test('scheduleSubtitlePrefetchRefresh logs refresh failures from timer callback', async () => {
   const logs: string[] = [];