diff --git a/core/modules/system/src/Tests/Theme/TwigEnvironmentTest.php b/core/modules/system/src/Tests/Theme/TwigEnvironmentTest.php
index 6423c23..32dbb01 100644
--- a/core/modules/system/src/Tests/Theme/TwigEnvironmentTest.php
+++ b/core/modules/system/src/Tests/Theme/TwigEnvironmentTest.php
@@ -67,7 +67,26 @@ public function testInlineTemplate() {
     $this->assertEqual($renderer->renderRoot($element_copy), 'test-with-context muuh');
 
     // Tests caching of inline templates.
-    $name = '{# inline_template_start #}test-with-context {{ llama }}';
+    $element = [];
+    $element['test'] = [
+      '#type' => 'inline_template',
+      '#template' => 'Llamas sometimes spit and wrestle with their {{ llama }}. Kittens are soft and fuzzy and they sometimes say {{ kitten }}. Flamingos have long legs and they are usually {{ flamingo }}. Pandas eat bamboo and they are {{ panda }}. Giraffes have long necks and long tongues and they eat {{ giraffe }}.',
+      '#context' => [
+        'llama' => 'necks',
+        'kitten' => 'meow',
+        'flamingo' => 'pink',
+        'panda' => 'bears',
+        'giraffe' => 'leaves',
+      ],
+    ];
+    $expected = 'Llamas sometimes spit and wrestle with their necks. Kittens are soft and fuzzy and they sometimes say meow. Flamingos have long legs and they are usually pink. Pandas eat bamboo and they are bears. Giraffes have long necks and long tongues and they eat leaves.';
+    $element_copy = $element;
+
+    // Render it twice so that twig caching is triggered.
+    $this->assertEqual($renderer->renderRoot($element), $expected);
+    $this->assertEqual($renderer->renderRoot($element_copy), $expected);
+
+    $name = '{# inline_template_start #}' . $element['test']['#template'];
     $hash = $this->container->getParameter('twig_extension_hash');
 
     $cache = $environment->getCache();