diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
index d22cb376d8..77a3c8c9c6 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
@@ -1459,16 +1459,20 @@ abstract class FrameworkExtensionTest extends TestCase
 
         $this->assertSame(ChainAdapter::class, $chain->getClass());
 
+        $this->assertCount(2, $chain->getArguments());
+        $this->assertCount(3, $chain->getArguments()[0]);
+
+        $expectedSeed = $chain->getArgument(0)[1]->getArgument(0);
         $expected = [
             [
                 (new ChildDefinition('cache.adapter.array'))
                     ->replaceArgument(0, 12),
                 (new ChildDefinition('cache.adapter.filesystem'))
-                    ->replaceArgument(0, 'xctxZ1lyiH')
+                    ->replaceArgument(0, $expectedSeed)
                     ->replaceArgument(1, 12),
                 (new ChildDefinition('cache.adapter.redis'))
                     ->replaceArgument(0, new Reference('.cache_connection.kYdiLgf'))
-                    ->replaceArgument(1, 'xctxZ1lyiH')
+                    ->replaceArgument(1, $expectedSeed)
                     ->replaceArgument(2, 12),
             ],
             12,