test: add AppShell mobile navigation coverage

frontend/testing/unit/components/AppShell.test.tsx

@@ -0,0 +1,77 @@
+import { render, screen, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { MemoryRouter, Route, Routes } from 'react-router-dom'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import AppShell from '../../../src/components/AppShell'
+
+vi.mock('../../../src/components/Sidebar', () => ({
+  default: () => <aside data-testid="desktop-sidebar" />,
+}))
+
+vi.mock('../../../src/components/Background', () => ({
+  default: () => <div data-testid="background" />,
+}))
+
+vi.mock('../../../src/hooks/useShortcuts', () => ({
+  useShortcuts: vi.fn(),
+}))
+
+const renderShell = (initialPath = '/') =>
+  render(
+    <MemoryRouter initialEntries={[initialPath]}>
+      <Routes>
+        <Route
+          path="*"
+          element={
+            <AppShell>
+              <section>Page content</section>
+            </AppShell>
+          }
+        />
+      </Routes>
+    </MemoryRouter>
+  )
+
+describe('AppShell', () => {
+  beforeEach(() => {
+    localStorage.clear()
+  })
+
+  it('opens and closes the mobile drawer from the menu controls', async () => {
+    const user = userEvent.setup()
+    renderShell()
+
+    await user.click(screen.getByRole('button', { name: /toggle navigation menu/i }))
+
+    expect(screen.getByRole('link', { name: 'Settings' })).toBeInTheDocument()
+
+    await user.click(screen.getByRole('button', { name: /toggle navigation menu/i }))
+
+    await waitFor(() => {
+      expect(screen.queryByRole('link', { name: 'Settings' })).not.toBeInTheDocument()
+    })
+  })
+
+  it('closes the mobile drawer when navigation changes routes', async () => {
+    const user = userEvent.setup()
+    renderShell()
+
+    await user.click(screen.getByRole('button', { name: /toggle navigation menu/i }))
+    await user.click(screen.getByRole('link', { name: 'Settings' }))
+
+    await waitFor(() => {
+      expect(screen.queryByRole('link', { name: 'Settings' })).not.toBeInTheDocument()
+    })
+    expect(screen.getByText('Page content')).toBeInTheDocument()
+  })
+
+  it('renders the mobile bottom navigation path shortcuts', () => {
+    renderShell()
+
+    expect(screen.getByRole('link', { name: /dashboard/i })).toBeInTheDocument()
+    expect(screen.getByRole('link', { name: /scans/i })).toBeInTheDocument()
+    expect(screen.getByRole('link', { name: /findings/i })).toBeInTheDocument()
+    expect(screen.getByRole('link', { name: /reports/i })).toBeInTheDocument()
+    expect(screen.getByRole('link', { name: /workflows/i })).toBeInTheDocument()
+  })
+})