Laravel Cashier Failed Payments Testing

Hi,

I have a code for buying premium account:

        try {
            if($request->user()->subscribed('premium') || is_null($request->stripeToken))
                return response()->json([
                    'message' => __('app.went_wrong')
                ], 200);
                
            $request->user()->newSubscription('premium', 'plan_XXXXXXXX')->create($request->stripeToken);

            return response()->json([
                'message' => __('app.premium_bought')
            ], 200);
        } catch (Exception $e) {
            return response()->json([
                'message' => __('app.went_wrong')
            ], 404);
        }

And after executing this code with good stripeToken everything works fine and with credit cards that are not valid this also works good.

I have added webhook route

Route::post('stripe/webhook', '\Laravel\Cashier\Http\Controllers\WebhookController@handleWebhook');

I have also added all events in stripe to point to this route.

When i test buying premium account i have all Webhook attempts succeeded in Stripe dashboard.

How can i test if this webhook handling all works good and does cashier handle all webhook events by default? I don't know how to test situation where someone successfully buy premium account and after that dispute payment or refund it somehow (how can i revert their subscription from database)?

I hope you understand what i want. If you need more info please tell me.