feat: SearchManga endpoint + tests

tests/Domain/Manga/Application/QueryHandler/SearchMangaHandlerTest.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Tests\Domain\Manga\Application\QueryHandler;
+
+use App\Domain\Manga\Application\Query\SearchManga;
+use App\Domain\Manga\Application\QueryHandler\SearchMangaHandler;
+use App\Domain\Manga\Domain\Model\Manga;
+use App\Domain\Manga\Domain\Model\MangaCollection;
+use App\Domain\Manga\Domain\Model\ValueObject\ExternalId;
+use App\Domain\Manga\Domain\Model\ValueObject\MangaId;
+use App\Domain\Manga\Domain\Model\ValueObject\MangaSlug;
+use App\Domain\Manga\Domain\Model\ValueObject\MangaTitle;
+use App\Tests\Domain\Manga\Adapter\InMemoryMangaProvider;
+use PHPUnit\Framework\TestCase;
+
+class SearchMangaHandlerTest extends TestCase
+{
+    public function testHandleReturnsEmptyResultWhenNoMatches(): void
+    {
+        // Arrange
+        $provider = new InMemoryMangaProvider([]);
+        $handler = new SearchMangaHandler($provider);
+
+        // Act
+        $response = $handler->handle(new SearchManga('One Piece'));
+
+        // Assert
+        $this->assertEmpty($response->items);
+    }
+
+    public function testHandleReturnsMangaSearchResults(): void
+    {
+        // Arrange
+        $manga = new Manga(
+            new MangaId('123'),
+            new MangaTitle('One Piece'),
+            new MangaSlug('one-piece'),
+            'Description test',
+            'Eiichiro Oda',
+            1997,
+            ['action', 'adventure'],
+            'ongoing',
+            new ExternalId('external-123'),
+            'http://example.com/image.jpg',
+            4.5
+        );
+
+        $provider = new InMemoryMangaProvider([$manga]);
+        $handler = new SearchMangaHandler($provider);
+
+        // Act
+        $response = $handler->handle(new SearchManga('One Piece'));
+
+        // Assert
+        $this->assertCount(1, $response->items);
+        $this->assertEquals('external-123', $response->items[0]->externalId);
+        $this->assertEquals('One Piece', $response->items[0]->title);
+        $this->assertEquals('one-piece', $response->items[0]->slug);
+    }
+}