fix(symfony): load swagger_ui when enabled (#6424)

Author: soyuka

src/Symfony/Bundle/DependencyInjection/ApiPlatformExtension.php

@@ -536,7 +536,9 @@ private function registerSwaggerConfiguration(ContainerBuilder $container, array
             $loader->load('symfony/swagger_ui.xml');
         }
 
-        $loader->load('state/swagger_ui.xml');
+        if ($config['enable_swagger_ui']) {
+            $loader->load('state/swagger_ui.xml');
+        }
 
         if (!$config['enable_swagger_ui'] && !$config['enable_re_doc']) {
             // Remove the listener but keep the controller to allow customizing the path of the UI

tests/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php

@@ -507,6 +507,16 @@ public function testSwaggerConfiguration(): void
         $this->assertServiceHasTags('api_platform.swagger.listener.ui', ['kernel.event_listener']);
     }
 
+    public function testSwaggerUiDisabled(): void
+    {
+        $config = self::DEFAULT_CONFIG;
+        $config['api_platform']['enable_swagger_ui'] = false;
+
+        (new ApiPlatformExtension())->load($config, $this->container);
+
+        $this->assertNotContainerHasService('api_platform.swagger_ui.provider');
+    }
+
     public function testJsonApiConfiguration(): void
     {
         $config = self::DEFAULT_CONFIG;