Check for the existence of toMobilyWs method

src/MobilyWsChannel.php

@@ -3,8 +3,8 @@
 namespace NotificationChannels\MobilyWs;
 
 use Illuminate\Events\Dispatcher;
-use Illuminate\Notifications\Notification;
 use Illuminate\Notifications\Events\NotificationFailed;
+use Illuminate\Notifications\Notification;
 use NotificationChannels\MobilyWs\Exceptions\CouldNotSendNotification;
 
 class MobilyWsChannel
@@ -39,6 +39,9 @@ public function __construct(MobilyWsApi $mobilyWs, Dispatcher $events)
      */
     public function send($notifiable, Notification $notification)
     {
+        if ( ! method_exists($notification, 'toMobilyWs')) {
+            throw CouldNotSendNotification::withErrorMessage('MobilyWs notifications must have toMobilyWs method');
+        }
         $number = $notifiable->routeNotificationFor('MobilyWs') ?: $notifiable->phone_number;
 
         $response = $this->api->send([

tests/ChannelTest.php

@@ -92,6 +92,20 @@ public function it_throw_an_exception_when_mobily_ws_return_an_error()
         $this->fail('CouldNotSendNotification exception was not raised');
     }
 
+    /** @test */
+    public function it_throw_an_exception_when_toMobilyWs_method_does_not_exist()
+    {
+        try {
+            $this->channel->send($this->notifiable, new Notification());
+        } catch (CouldNotSendNotification $e) {
+            $this->assertContains('MobilyWs notifications must have toMobilyWs method', $e->getMessage());
+            return;
+        }
+
+        $this->fail('CouldNotSendNotification exception was not raised');
+
+    }
+
 }
 
 class TestNotifiable