add test

app/CheckinWebhook.php

@@ -34,6 +34,6 @@ class CheckinWebhook extends Model
 
     public function isAvailable()
     {
-        return $this->user() !== null;
+        return $this->user !== null;
     }
 }

app/Http/Controllers/Api/WebhookController.php

@@ -46,7 +46,7 @@ class WebhookController extends Controller
                     'message' => 'Validation failed',
                     'violations' => $validator->errors()->all(),
                 ]
-            ]);
+            ], 422);
         }
 
         $ejaculatedDate = empty($inputs['checked_in_at']) ? now() : new Carbon($inputs['checked_in_at']);
@@ -57,7 +57,7 @@ class WebhookController extends Controller
                 'error' => [
                     'message' => 'Checkin already exists in this time',
                 ]
-            ]);
+            ], 422);
         }
 
         $ejaculation = Ejaculation::create([