Allowed to provide the domain when creating a short URL

module/Rest/src/Action/ShortUrl/CreateShortUrlAction.php

@@ -36,7 +36,8 @@ class CreateShortUrlAction extends AbstractCreateShortUrlAction
                 $this->getOptionalDate($postData, 'validUntil'),
                 $postData['customSlug'] ?? null,
                 $postData['maxVisits'] ?? null,
-                $postData['findIfExists'] ?? null
+                $postData['findIfExists'] ?? null,
+                $postData['domain'] ?? null
             )
         );
     }

module/Rest/test-api/Action/CreateShortUrlActionTest.php

@@ -5,6 +5,7 @@ namespace ShlinkioApiTest\Shlink\Rest\Action;
 
 use Cake\Chronos\Chronos;
 use GuzzleHttp\RequestOptions;
+use Shlinkio\Shlink\Rest\Util\RestUtils;
 use Shlinkio\Shlink\TestUtils\ApiTest\ApiTestCase;
 
 use function Functional\map;
@@ -33,6 +34,18 @@ class CreateShortUrlActionTest extends ApiTestCase
         $this->assertEquals('my-cool-slug', $payload['shortCode']);
     }
 
+    /**
+     * @test
+     * @dataProvider provideConflictingSlugs
+     */
+    public function failsToCreateShortUrlWithDuplicatedSlug(string $slug, ?string $domain): void
+    {
+        [$statusCode, $payload] = $this->createShortUrl(['customSlug' => $slug, 'domain' => $domain]);
+
+        $this->assertEquals(self::STATUS_BAD_REQUEST, $statusCode);
+        $this->assertEquals(RestUtils::INVALID_SLUG_ERROR, $payload['error']);
+    }
+
     /** @test */
     public function createsNewShortUrlWithTags(): void
     {
@@ -126,22 +139,32 @@ class CreateShortUrlActionTest extends ApiTestCase
         ]];
     }
 
-    /** @test */
-    public function returnsErrorWhenRequestingReturnExistingButCustomSlugIsInUse(): void
+    /**
+     * @test
+     * @dataProvider provideConflictingSlugs
+     */
+    public function returnsErrorWhenRequestingReturnExistingButCustomSlugIsInUse(string $slug, ?string $domain): void
     {
         $longUrl = 'https://www.alejandrocelaya.com';
 
         [$firstStatusCode] = $this->createShortUrl(['longUrl' => $longUrl]);
         [$secondStatusCode] = $this->createShortUrl([
             'longUrl' => $longUrl,
-            'customSlug' => 'custom',
+            'customSlug' => $slug,
             'findIfExists' => true,
+            'domain' => $domain,
         ]);
 
         $this->assertEquals(self::STATUS_OK, $firstStatusCode);
         $this->assertEquals(self::STATUS_BAD_REQUEST, $secondStatusCode);
     }
 
+    public function provideConflictingSlugs(): iterable
+    {
+        yield 'without domain' => ['custom', null];
+        yield 'with domain' => ['custom-with-domain', 'some-domain.com'];
+    }
+
     /** @test */
     public function createsNewShortUrlIfRequestedToFindButThereIsNoMatch(): void
     {

module/Rest/test-api/Action/ListShortUrlsTest.php

@@ -81,13 +81,27 @@ class ListShortUrlsTest extends ApiTestCase
                             'https://blog.alejandrocelaya.com/2019/04/27'
                             . '/considerations-to-properly-use-open-source-software-projects/',
                     ],
+                    [
+                        'shortCode' => 'custom-with-domain',
+                        'shortUrl' => 'http://some-domain.com/custom-with-domain',
+                        'longUrl' => 'https://google.com',
+                        'dateCreated' => '2019-01-01T00:00:00+00:00',
+                        'visitsCount' => 0,
+                        'tags' => [],
+                        'meta' => [
+                            'validSince' => null,
+                            'validUntil' => null,
+                            'maxVisits' => null,
+                        ],
+                        'originalUrl' => 'https://google.com',
+                    ],
                 ],
                 'pagination' => [
                     'currentPage' => 1,
                     'pagesCount' => 1,
                     'itemsPerPage' => 10,
-                    'itemsInCurrentPage' => 4,
-                    'totalItems' => 4,
+                    'itemsInCurrentPage' => 5,
+                    'totalItems' => 5,
                 ],
             ],
         ], $respPayload);

module/Rest/test-api/Fixtures/ShortUrlsFixture.php

@@ -40,6 +40,12 @@ class ShortUrlsFixture extends AbstractFixture
         ))->setShortCode('ghi789');
         $manager->persist($withDomainShortUrl);
 
+        $withDomainAndSlugShortUrl = $this->setShortUrlDate(new ShortUrl(
+            'https://google.com',
+            ShortUrlMeta::createFromRawData(['domain' => 'some-domain.com'])
+        ))->setShortCode('custom-with-domain');
+        $manager->persist($withDomainAndSlugShortUrl);
+
         $manager->flush();
 
         $this->addReference('abc123_short_url', $abcShortUrl);