chore: add some tests for the useRecentlyVisited hook (#7380)

frontend/src/hooks/useRecentlyVisited.test.tsx

@@ -0,0 +1,68 @@
+import type { FC } from 'react';
+import { render, screen } from '@testing-library/react';
+import {
+    MemoryRouter as Router,
+    Routes,
+    Route,
+    Navigate,
+    RouterProvider,
+    createMemoryRouter,
+} from 'react-router-dom';
+import { useRecentlyVisited } from './useRecentlyVisited';
+
+const RouteNameRender: FC<{}> = () => {
+    const { lastVisited } = useRecentlyVisited();
+    return (
+        <div>
+            {lastVisited.map((visited) => (
+                <div>{visited.pathName}</div>
+            ))}
+        </div>
+    );
+};
+
+beforeEach(() => {
+    window.localStorage.clear();
+});
+
+test('checks that routes that exist in routes.ts gets added to lastVisited', async () => {
+    render(
+        <Router initialEntries={['/']}>
+            <RouteNameRender />
+            <Routes>
+                <Route path='/' element={<Navigate to={'/search'} />} />
+                <Route path='/search' element={<Navigate to={'/unknown1'} />} />
+                <Route
+                    path='/unknown1'
+                    element={<Navigate to={'/integrations'} />}
+                />
+                <Route
+                    path='/integrations'
+                    element={<Navigate to={'/unknown2'} />}
+                />
+                <Route
+                    path='/unknown2'
+                    element={<Navigate to={'/segments'} />}
+                />
+                <Route path='/segments' element={<div>segment div</div>} />
+            </Routes>
+        </Router>,
+    );
+    await screen.findByText('/search');
+    await screen.findByText('/integrations');
+    await screen.findByText('/segments');
+    await screen.findByText('segment div');
+});
+
+test('visiting gets added to the list', async () => {
+    const router = createMemoryRouter([
+        { path: '/search', element: <RouteNameRender /> },
+        { path: '/projects', element: <RouteNameRender /> },
+        { path: '/', element: <RouteNameRender /> },
+    ]);
+    render(<RouterProvider router={router} />);
+    router.navigate('/search');
+    await screen.findByText('/search');
+    router.navigate('/projects');
+    await screen.findByText('/projects');
+});