commit 5127bb81f794eea33a555f2ff5527abce067d24c
Author: Joel Pittet <joel@pittet.ca>
Date:   Sun Jun 21 12:07:43 2015 -0700

    fix tests

diff --git a/core/modules/system/tests/modules/twig_theme_test/src/TwigThemeTestController.php b/core/modules/system/tests/modules/twig_theme_test/src/TwigThemeTestController.php
index 47d491d..b6c4149 100644
--- a/core/modules/system/tests/modules/twig_theme_test/src/TwigThemeTestController.php
+++ b/core/modules/system/tests/modules/twig_theme_test/src/TwigThemeTestController.php
@@ -7,6 +7,7 @@
 
 namespace Drupal\twig_theme_test;
 
+use Drupal\Core\Template\Attribute;
 use Drupal\Core\Url;
 
 /**
@@ -57,7 +58,7 @@ public function linkGeneratorRender() {
       '#theme' => 'twig_theme_test_link_generator',
       '#test_url' => new Url('user.register', [], ['absolute' => TRUE]),
       '#test_url_attribute' => new Url('user.register', [], ['attributes' => ['foo' => 'bar']]),
-      '#attributes' => new Attribute(['class' => 'llama', 'kitten', 'panda']),
+      '#attributes' => new Attribute(['class' => ['llama', 'kitten', 'panda']]),
     );
   }
 
diff --git a/core/modules/system/tests/modules/twig_theme_test/templates/twig_theme_test.link_generator.html.twig b/core/modules/system/tests/modules/twig_theme_test/templates/twig_theme_test.link_generator.html.twig
index 348e2c0..8925705 100644
--- a/core/modules/system/tests/modules/twig_theme_test/templates/twig_theme_test.link_generator.html.twig
+++ b/core/modules/system/tests/modules/twig_theme_test/templates/twig_theme_test.link_generator.html.twig
@@ -2,4 +2,4 @@
 <div>link via the linkgenerator: {{ link('register', test_url, {'foo': 'bar'}) }}</div>
 <div>link via the linkgenerator: {{ link('register', test_url_attribute, {'id': 'kitten'}) }}</div>
 <div>link via the linkgenerator: {{ link('register', 'route:user.register', {'id': 'kitten'}) }}</div>
-<div>link via the linkgenerator: {{ link('register', test_url, attributes) }}</div>
+<div>link via the linkgenerator: {{ link('register', 'route:user.register', attributes) }}</div>
diff --git a/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.module b/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.module
index d5e098c..52c0ef4 100644
--- a/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.module
+++ b/core/modules/system/tests/modules/twig_theme_test/twig_theme_test.module
@@ -43,7 +43,11 @@ function twig_theme_test_theme($existing, $type, $theme, $path) {
     'template' => 'twig_theme_test.url_generator',
   );
   $items['twig_theme_test_link_generator'] = array(
-    'variables' => array('test_url' => NULL, 'test_url_attribute' => NULL),
+    'variables' => [
+      'test_url' => NULL,
+      'test_url_attribute' => NULL,
+      'attributes' => [],
+    ],
     'template' => 'twig_theme_test.link_generator',
   );
   $items['twig_theme_test_url_to_string'] = array(