diff --git a/tests/Unit/Services/TraktServiceTest.php b/tests/Unit/Services/TraktServiceTest.php
new file mode 100644
index 000000000..a15f96968
--- /dev/null
+++ b/tests/Unit/Services/TraktServiceTest.php
@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Services;
+
+use App\Services\TraktService;
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Http;
+use Tests\TestCase;
+
+class TraktServiceTest extends TestCase
+{
+    private TraktService $service;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        config([
+            'nntmux_api.trakttv_api_key' => 'test_trakt_key',
+            'nntmux_api.trakttv_timeout' => 30,
+            'nntmux_api.trakttv_retry_times' => 1,
+            'nntmux_api.trakttv_retry_delay' => 1,
+            'cache.default' => 'array',
+        ]);
+
+        Cache::flush();
+        $this->service = new TraktService;
+    }
+
+    public function test_get_show_summary_accepts_numeric_trakt_id(): void
+    {
+        Http::fake([
+            'https://api.trakt.tv/shows/1390*' => Http::response([
+                'title' => 'Breaking Bad',
+                'ids' => [
+                    'trakt' => 1390,
+                ],
+            ], 200),
+        ]);
+
+        $summary = $this->service->getShowSummary(1390, 'full');
+
+        $this->assertNotNull($summary);
+        $this->assertSame('Breaking Bad', $summary['title']);
+
+        Http::assertSent(function ($request) {
+            return str_contains($request->url(), 'https://api.trakt.tv/shows/1390')
+                && $request['extended'] === 'full';
+        });
+    }
+}