Test notifying users after shipping orders

app/Http/Controllers/OrderShipmentController.php

@@ -4,7 +4,9 @@
 
 use App\Mail\OrderShipped;
 use App\Models\Order;
+use App\Notifications\OrderShipmentNotification;
 use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Notification;
 
 class OrderShipmentController extends Controller
 {
@@ -37,4 +39,14 @@ public function shipOrderAdvanced(Order $order)
 
         return ['message' => 'Your order has been shipped.'];
     }
+
+    public function notifyForOrderShipment(Order $order)
+    {
+        $order->status = 'shipped';
+        $order->save();
+
+        Notification::send(auth()->user(), new OrderShipmentNotification($order));
+
+        return ['message' => 'Your order has been shipped.'];
+    }
 }

app/Notifications/OrderShipmentNotification.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Notifications;
+
+use App\Models\Order;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Notifications\Messages\MailMessage;
+use Illuminate\Notifications\Notification;
+
+class OrderShipmentNotification extends Notification
+{
+    use Queueable;
+
+    public Order $order;
+
+    /**
+     * Create a new notification instance.
+     *
+     * @return void
+     */
+    public function __construct(Order $order)
+    {
+        $this->order = $order;
+    }
+
+    /**
+     * Get the notification's delivery channels.
+     *
+     * @param  mixed  $notifiable
+     * @return array
+     */
+    public function via($notifiable)
+    {
+        // $notifiable is $user in this case.
+
+        return ['mail'];
+    }
+
+    /**
+     * Get the mail representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return \Illuminate\Notifications\Messages\MailMessage
+     */
+    public function toMail($notifiable)
+    {
+        // $notifiable is $user in this case.
+
+        $url = url('/orders/'.$this->order->id);
+
+        return (new MailMessage)
+            ->greeting("Hello! {$notifiable->name}")
+            ->line('Your order has been shipped!')
+            ->action('View Order', $url)
+            ->line('Thank you for using our application!');
+    }
+
+    /**
+     * Get the array representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return array
+     */
+    public function toArray($notifiable)
+    {
+        return [
+            //
+        ];
+    }
+}

routes/web.php

@@ -69,6 +69,9 @@
 
         Route::post('orders/{order}/shipped/advanced', [OrderShipmentController::class, 'shipOrderAdvanced'])
             ->name('order.shipped.advanced');
+
+        Route::patch('orders/{order}/shipment/notification', [OrderShipmentController::class, 'notifyForOrderShipment'])
+            ->name('order.shipment.notification');
     });
 
     Route::prefix('orders')->group(function() {

tests/Feature/NotificationTest.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Tests\Feature;
+
+
+use App\Models\Order;
+use App\Models\User;
+use App\Notifications\OrderShipmentNotification;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Foundation\Testing\WithFaker;
+use Illuminate\Notifications\Messages\MailMessage;
+use Illuminate\Support\Facades\Notification;
+use Tests\TestCase;
+
+class NotificationTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function notifying_users_after_shipping_orders()
+    {
+        $this->actingAs($user = User::factory()->create());
+
+        Notification::fake();
+
+        $this->patch(route('order.shipment.notification', $order = Order::factory()->create()));
+
+        Notification::assertSentTo($user, OrderShipmentNotification::class, function ($notification) use ($user, $order) {
+            return $notification->order->id === $order->id &&
+                in_array('mail', $notification->via($user)) &&
+                ($notification->toMail($user) instanceof MailMessage);
+        });
+    }
+}