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tests/Unit/RegistrationPeriodServiceTest.php

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+<?php
+
+namespace Tests\Unit;
+
+use App\Models\Election;
+use App\Services\RegistrationPeriodService;
+use Database\Seeders\DatabaseSeeder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class RegistrationPeriodServiceTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_registration_period_uses_dates_and_open_flag(): void
+    {
+        $this->seed(DatabaseSeeder::class);
+
+        $service = new RegistrationPeriodService;
+        $election = Election::query()->where('code', 'PRN2026')->firstOrFail();
+
+        $this->assertTrue($service->isOpen($election));
+
+        $election->settings()->update([
+            'is_registration_open' => false,
+            'is_registration_open_override' => null,
+        ]);
+        $election->refresh()->load('settings');
+
+        $this->assertFalse($service->isOpen($election));
+    }
+
+    public function test_registration_override_can_explicitly_open_or_close(): void
+    {
+        $this->seed(DatabaseSeeder::class);
+
+        $service = new RegistrationPeriodService;
+        $election = Election::query()->where('code', 'PRN2026')->firstOrFail();
+
+        $election->settings()->update([
+            'registration_start_date' => now()->subWeeks(4)->toDateString(),
+            'registration_end_date' => now()->subDay()->toDateString(),
+            'is_registration_open' => true,
+            'is_registration_open_override' => true,
+        ]);
+        $election->refresh()->load('settings');
+
+        $this->assertTrue($service->isOpen($election));
+
+        $election->settings()->update([
+            'is_registration_open_override' => false,
+        ]);
+        $election->refresh()->load('settings');
+
+        $this->assertFalse($service->isOpen($election));
+    }
+}