Error running tests: Call to a member function getId() on null

<?php

use App\Filament\Resources\FileResource;
use function Pest\Livewire\livewire;
use App\Models\User;
use App\Models\File;

it('redirects to login for guest', function () {
    test()->get(FileResource::getUrl('create'))
        ->assertStatus(302)
        ->assertRedirect(route('filament.auth.login'));
});

<?php

namespace Tests;

use App\Providers\Filament\AppPanelProvider;
use Illuminate\Foundation\Testing\LazilyRefreshDatabase;
use Illuminate\Foundation\Testing\TestCase as BaseTestCase;

abstract class TestCase extends BaseTestCase
{
    use CreatesApplication;
    use LazilyRefreshDatabase;

}