feat(stats): add v1 immersion stats dashboard (#19)

src/main/runtime/subtitle-prefetch-source.test.ts

@@ -0,0 +1,50 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  getActiveExternalSubtitleSource,
+  resolveSubtitleSourcePath,
+} from './subtitle-prefetch-source';
+
+test('getActiveExternalSubtitleSource returns the active external subtitle path', () => {
+  const source = getActiveExternalSubtitleSource(
+    [
+      { type: 'sub', id: 1, external: false },
+      { type: 'sub', id: 2, external: true, 'external-filename': ' https://host/subs.ass ' },
+    ],
+    '2',
+  );
+
+  assert.equal(source, 'https://host/subs.ass');
+});
+
+test('getActiveExternalSubtitleSource returns null when the selected track is not external', () => {
+  const source = getActiveExternalSubtitleSource(
+    [{ type: 'sub', id: 2, external: false, 'external-filename': '/tmp/subs.ass' }],
+    2,
+  );
+
+  assert.equal(source, null);
+});
+
+test('resolveSubtitleSourcePath converts file URLs with spaces into filesystem paths', () => {
+  const fileUrl =
+    process.platform === 'win32'
+      ? 'file:///C:/Users/test/Sub%20Folder/subs.ass'
+      : 'file:///tmp/Sub%20Folder/subs.ass';
+
+  const resolved = resolveSubtitleSourcePath(fileUrl);
+
+  assert.ok(
+    resolved.endsWith('/Sub Folder/subs.ass') || resolved.endsWith('\\Sub Folder\\subs.ass'),
+  );
+});
+
+test('resolveSubtitleSourcePath leaves non-file sources unchanged', () => {
+  assert.equal(resolveSubtitleSourcePath('/tmp/subs.ass'), '/tmp/subs.ass');
+});
+
+test('resolveSubtitleSourcePath returns the original source for malformed file URLs', () => {
+  const source = 'file://invalid[path';
+
+  assert.equal(resolveSubtitleSourcePath(source), source);
+});