fix(symfony): xkey default value configuration

Author: soyuka

src/Symfony/Bundle/DependencyInjection/Configuration.php

@@ -416,8 +416,12 @@ private function addHttpCacheSection(ArrayNodeDefinition $rootNode): void
                                     ->end()
                                     ->info('To pass options to the client charged with the request.')
                                 ->end()
-                                ->scalarNode('purger')->defaultValue('api_platform.http_cache.purger.varnish')->info('Specify a varnish purger to use (available values: "api_platform.http_cache.purger.varnish.ban" or "api_platform.http_cache.purger.varnish.xkey").')->end()
+                                ->scalarNode('purger')
+                                    ->defaultValue('api_platform.http_cache.purger.varnish')
+                                    ->info('Specify a varnish purger to use (available values: "api_platform.http_cache.purger.varnish.ban" or "api_platform.http_cache.purger.varnish.xkey").')
+                                ->end()
                                 ->arrayNode('xkey')
+                                    ->addDefaultsIfNotSet()
                                     ->children()
                                         ->scalarNode('glue')
                                         ->defaultValue(' ')
@@ -663,4 +667,4 @@ private function buildDeprecationArgs(string $version, string $message): array
     }
 }
 
-class_alias(Configuration::class, \ApiPlatform\Core\Bridge\Symfony\Bundle\DependencyInjection\Configuration::class);
+class_alias(Configuration::class, \ApiPlatform\Core\Bridge\Symfony\Bundle\DependencyInjection\Configuration::class);

tests/Symfony/Bundle/DependencyInjection/ConfigurationTest.php

@@ -190,6 +190,7 @@ private function runDefaultConfigTests(array $doctrineIntegrationsToLoad = ['orm
                     'request_options' => [],
                     'max_header_length' => 7500,
                     'purger' => 'api_platform.http_cache.purger.varnish',
+                    'xkey' => ['glue' => ' '],
                 ],
                 'etag' => true,
                 'max_age' => null,