chore: translations were still missing

tests/renderer/components/StatusBar.test.tsx

@@ -1,8 +1,9 @@
 import React from 'react';
 import { describe, it, expect, beforeEach, vi } from 'vitest';
-import { render, screen } from '@testing-library/react';
+import { fireEvent, render, screen } from '@testing-library/react';
 import { StatusBar } from '../../../src/renderer/components/StatusBar/StatusBar';
 import { useAppStore } from '../../../src/renderer/store';
+import { I18nProvider } from '../../../src/renderer/i18n';
 
 vi.mock('../../../src/renderer/components/ProjectSelector', () => ({
   ProjectSelector: () => <div data-testid="project-selector">Project</div>,
@@ -11,6 +12,8 @@ vi.mock('../../../src/renderer/components/ProjectSelector', () => ({
 describe('StatusBar', () => {
   beforeEach(() => {
     vi.clearAllMocks();
+    localStorage.clear();
+    (window.electronAPI.app as { getSystemLanguage?: () => Promise<string> }).getSystemLanguage = async () => 'de-DE';
     useAppStore.setState({
       media: [],
       tasks: [],
@@ -20,9 +23,31 @@ describe('StatusBar', () => {
     } as any);
   });
 
-  it('shows the currently applied theme', () => {
-    render(<StatusBar />);
+  it('shows the currently applied theme', async () => {
+    render(
+      <I18nProvider>
+        <StatusBar />
+      </I18nProvider>
+    );
+
+    await screen.findByTestId('statusbar-language-select');
 
     expect(screen.getByText('Theme: slate')).toBeInTheDocument();
   });
+
+  it('shows ui language badge and allows switching language', async () => {
+    render(
+      <I18nProvider>
+        <StatusBar />
+      </I18nProvider>
+    );
+
+    const languageSelect = await screen.findByTestId('statusbar-language-select');
+    expect(languageSelect).toHaveValue('de');
+
+    fireEvent.change(languageSelect, { target: { value: 'fr' } });
+    expect(languageSelect).toHaveValue('fr');
+
+    expect(localStorage.setItem).toHaveBeenCalledWith('bds-ui-language', 'fr');
+  });
 });