add refund and event logic

tests/Unit/Services/Events/EventManagementServiceTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Tests\Unit\Services\Events;
+
+use App\Services\Events\EventChargeService;
+use App\Services\Events\EventManagementService;
+use App\Services\Invoices\InvoiceGenerationService;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Mockery;
+use Tests\TestCase;
+
+class EventManagementServiceTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_update_returns_not_found(): void
+    {
+        $chargeService = Mockery::mock(EventChargeService::class);
+        $invoiceService = Mockery::mock(InvoiceGenerationService::class);
+
+        $service = new EventManagementService($chargeService, $invoiceService);
+        $result = $service->update(999, ['event_name' => 'Missing'], null);
+
+        $this->assertFalse($result['ok']);
+    }
+}