feat(yomitan): add read-only external profile support for shared dictionaries (#18)

src/core/services/yomitan-extension-paths.test.ts

@@ -4,6 +4,7 @@ import test from 'node:test';
 
 import {
   getYomitanExtensionSearchPaths,
+  resolveExternalYomitanExtensionPath,
   resolveExistingYomitanExtensionPath,
 } from './yomitan-extension-paths';
 
@@ -51,3 +52,19 @@ test('resolveExistingYomitanExtensionPath ignores source tree without built mani
 
   assert.equal(resolved, null);
 });
+
+test('resolveExternalYomitanExtensionPath returns external extension dir when manifest exists', () => {
+  const profilePath = path.join('/Users', 'kyle', '.local', 'share', 'gsm-profile');
+  const resolved = resolveExternalYomitanExtensionPath(profilePath, (candidate) =>
+    candidate === path.join(profilePath, 'extensions', 'yomitan', 'manifest.json'),
+  );
+
+  assert.equal(resolved, path.join(profilePath, 'extensions', 'yomitan'));
+});
+
+test('resolveExternalYomitanExtensionPath returns null when external profile has no extension', () => {
+  const profilePath = path.join('/Users', 'kyle', '.local', 'share', 'gsm-profile');
+  const resolved = resolveExternalYomitanExtensionPath(profilePath, () => false);
+
+  assert.equal(resolved, null);
+});