fix: use vi.mock for navigate test, fix import order in CartSnackbar

client/src/shared/ui/CartSnackbar.tsx

@@ -1,8 +1,8 @@
 import Alert from '@mui/material/Alert'
 import Button from '@mui/material/Button'
 import Snackbar from '@mui/material/Snackbar'
-import { useNavigate } from 'react-router-dom'
 import { useUnit } from 'effector-react'
+import { useNavigate } from 'react-router-dom'
 import { $cartSnackOpen, cartDismissed } from '@/shared/model/cart-notifications'
 
 export function CartSnackbar() {

client/src/shared/ui/__tests__/CartSnackbar.test.tsx

@@ -1,19 +1,23 @@
 import { render, screen, fireEvent, act } from '@testing-library/react'
-import { describe, it, expect, vi } from 'vitest'
-import { MemoryRouter, useLocation } from 'react-router-dom'
+import { MemoryRouter } from 'react-router-dom'
+import { describe, it, expect, vi, beforeEach } from 'vitest'
 import { cartAdded, cartDismissed } from '@/shared/model/cart-notifications'
 import { CartSnackbar } from '@/shared/ui/CartSnackbar'
 
-function LocationSpy() {
-  const location = useLocation()
-  ;(window as any).__testLocation = location
-  return null
-}
+const navigateMock = vi.fn()
+
+vi.mock('react-router-dom', async (importOriginal) => {
+  const mod = await importOriginal<typeof import('react-router-dom')>()
+  return { ...mod, useNavigate: () => navigateMock }
+})
+
+beforeEach(() => {
+  navigateMock.mockClear()
+})
 
 function renderWithRouter() {
   render(
     <MemoryRouter initialEntries={['/']}>
-      <LocationSpy />
       <CartSnackbar />
     </MemoryRouter>,
   )
@@ -55,9 +59,8 @@ describe('CartSnackbar', () => {
   it('navigates to /cart and closes on "Перейти в корзину" click', () => {
     renderWithRouter()
     cartAdded()
-    const goBtn = screen.getByRole('button', { name: /перейти в корзину/i })
-    fireEvent.click(goBtn)
-    expect((window as any).__testLocation.pathname).toBe('/cart')
+    fireEvent.click(screen.getByRole('button', { name: /перейти в корзину/i }))
+    expect(navigateMock).toHaveBeenCalledWith('/cart')
     expect(screen.queryByText(/товар добавлен/i)).not.toBeInTheDocument()
   })
 })