feat(core): add Electron runtime, services, and app composition

src/main/runtime/yomitan-settings-opener.test.ts

@@ -0,0 +1,41 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { createOpenYomitanSettingsHandler } from './yomitan-settings-opener';
+
+test('yomitan opener warns when extension cannot be loaded', async () => {
+  const logs: string[] = [];
+  const openSettings = createOpenYomitanSettingsHandler({
+    ensureYomitanExtensionLoaded: async () => null,
+    openYomitanSettingsWindow: () => {
+      throw new Error('should not open');
+    },
+    getExistingWindow: () => null,
+    setWindow: () => {},
+    logWarn: (message) => logs.push(message),
+    logError: () => logs.push('error'),
+  });
+
+  openSettings();
+  await Promise.resolve();
+  await Promise.resolve();
+  assert.ok(logs.includes('Unable to open Yomitan settings: extension failed to load.'));
+});
+
+test('yomitan opener opens settings window when extension is available', async () => {
+  let opened = false;
+  const openSettings = createOpenYomitanSettingsHandler({
+    ensureYomitanExtensionLoaded: async () => ({ id: 'ext' }),
+    openYomitanSettingsWindow: () => {
+      opened = true;
+    },
+    getExistingWindow: () => null,
+    setWindow: () => {},
+    logWarn: () => {},
+    logError: () => {},
+  });
+
+  openSettings();
+  await Promise.resolve();
+  await Promise.resolve();
+  assert.equal(opened, true);
+});