moar fixes + unit test review of routes

src/pages/admin/components/AdminBrandManager.test.tsx

@@ -116,6 +116,30 @@ describe('AdminBrandManager', () => {
     console.log('TEST END: should handle successful logo upload');
   });
 
+  it('should handle failed logo upload with a non-Error object', async () => {
+    console.log('TEST START: should handle failed logo upload with a non-Error object');
+    mockedApiClient.fetchAllBrands.mockImplementation(
+      async () => new Response(JSON.stringify(mockBrands), { status: 200 })
+    );
+    // Reject with a string instead of an Error object to test the fallback error handling
+    mockedApiClient.uploadBrandLogo.mockRejectedValue('A string error');
+    mockedToast.loading.mockReturnValue('toast-non-error');
+
+    render(<AdminBrandManager />);
+    await waitFor(() => expect(screen.getByText('No Frills')).toBeInTheDocument());
+
+    const file = new File(['logo'], 'logo.png', { type: 'image/png' });
+    const input = screen.getByLabelText('Upload logo for No Frills');
+
+    fireEvent.change(input, { target: { files: [file] } });
+
+    await waitFor(() => {
+      // This assertion verifies that the `String(e)` part of the catch block is executed.
+      expect(mockedToast.error).toHaveBeenCalledWith('Upload failed: A string error', { id: 'toast-non-error' });
+    });
+    console.log('TEST END: should handle failed logo upload with a non-Error object');
+  });
+
   it('should handle failed logo upload', async () => {
     console.log('TEST START: should handle failed logo upload');
     console.log('TEST SETUP: Mocking fetchAllBrands for success and uploadBrandLogo for failure.');