feat(notification): implement email notifications for user registration and purchase events

tests/Feature/Ticket/TicketGeneratorServiceTest.php

@@ -7,6 +7,7 @@ use App\Domains\Attachable\Models\Attachment;
 use App\Domains\Auth\Models\User;
 use App\Domains\Catalog\Enums\CatalogItemType;
 use App\Domains\Catalog\Models\CatalogItem;
+use App\Domains\Notification\Events\TicketsAvailable;
 use App\Domains\Purchase\Models\Purchase;
 use App\Domains\Tenant\Models\Tenant;
 use App\Domains\Ticket\Exceptions\TicketGenerationException;
@@ -14,6 +15,8 @@ use App\Domains\Ticket\Services\TicketGeneratorService;
 use Illuminate\Database\Eloquent\Collection as EloquentCollection;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Carbon;
+use Illuminate\Support\Facades\Event;
+use Illuminate\Support\Facades\Queue;
 use Illuminate\Support\Str;
 use Tests\TestCase;
 
@@ -32,6 +35,7 @@ class TicketGeneratorServiceTest extends TestCase
         parent::setUp();
 
         Carbon::setTestNow('2026-07-21 10:00:00');
+        Queue::fake();
         $this->service = app(TicketGeneratorService::class);
         $this->tenant = $this->createTenant();
         $this->user = User::factory()->create();
@@ -128,6 +132,7 @@ class TicketGeneratorServiceTest extends TestCase
 
     public function test_marking_a_purchase_as_paid_generates_its_tickets_once(): void
     {
+        Event::fake([TicketsAvailable::class]);
         $item = $this->createTicketableItem('paid-ticket');
         $purchase = $this->createPurchase($item, 2);
         $purchase->setRelation('items', new EloquentCollection);
@@ -136,10 +141,12 @@ class TicketGeneratorServiceTest extends TestCase
 
         $this->assertSame(Purchase::STATUS_PAID, $purchase->status);
         $this->assertDatabaseCount('tickets', 2);
+        Event::assertDispatchedTimes(TicketsAvailable::class, 1);
 
         $purchase->markAsPaid();
 
         $this->assertDatabaseCount('tickets', 2);
+        Event::assertDispatchedTimes(TicketsAvailable::class, 1);
     }
 
     public function test_a_ticket_generated_from_a_purchase_keeps_its_source_ids(): void
@@ -157,6 +164,7 @@ class TicketGeneratorServiceTest extends TestCase
 
     public function test_marking_a_purchase_as_paid_ignores_items_without_tickets(): void
     {
+        Event::fake([TicketsAvailable::class]);
         $item = $this->createTicketableItem('regular-product');
         $item->update(['has_tickets' => false]);
         $purchase = $this->createPurchase($item->fresh(), 1);
@@ -165,6 +173,7 @@ class TicketGeneratorServiceTest extends TestCase
 
         $this->assertSame(Purchase::STATUS_PAID, $purchase->status);
         $this->assertDatabaseCount('tickets', 0);
+        Event::assertNotDispatched(TicketsAvailable::class);
     }
 
     public function test_paid_status_is_rolled_back_when_ticket_generation_fails(): void