Carbon::isBefore() TypeError in tests using inactive factory state

[chrisrhymes]

Hi,

This is using Laravel v11, Carbon v3 and short-url v8.1.2

I am using the default factories in my test but when I create an inactive short url using the inactive() factory state and test getting the short url it returns a 500 type error. It seems this is because the Carbon\Carbon::isBefore() only allows a DateInterface or string and not null.

I have just upgraded to Laravel 11 which is now including Carbon v3 instead of v2.

TypeError: Carbon\Carbon::isBefore(): Argument #1 ($date) must be of type DateTimeInterface|string, null given, called in /my-app/vendor/ashallendesign/short-url/src/Classes/Resolver.php on line 59 and defined in /my-app/vendor/nesbot/carbon/src/Carbon/Traits/Comparison.php:239

use AshAllenDesign\ShortURL\Models\ShortURL;

it('returns 404 for inactive url', function () {
    $inactiveShortURL = ShortURL::factory()->inactive()->create();

    get(config('short-url.prefix').'/'.$inactiveShortURL->url_key)
        ->assertStatus(404);
});

This calls the class Resolver.php and fails on line 59:

if (now()->isBefore($shortURL->activated_at)) {
        return false;
}