core/modules/block/src/Tests/BlockViewBuilderTest.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/modules/block/src/Tests/BlockViewBuilderTest.php b/core/modules/block/src/Tests/BlockViewBuilderTest.php
index f8cade9..dfc92fe 100644
--- a/core/modules/block/src/Tests/BlockViewBuilderTest.php
+++ b/core/modules/block/src/Tests/BlockViewBuilderTest.php
@@ -246,13 +246,13 @@ public function testBlockViewBuilderAlter() {
     \Drupal::state()->set('block_test_view_alter_cache_tag', $alter_add_tag);
     $expected_tags = NestedArray::mergeDeep($default_tags, array($alter_add_tag => TRUE));
     $build = $this->getBlockRenderArray();
-    $this->assertIdentical($expected_tags, $build['#cache']['tags']); //, 'An altered cacheable block has the expected cache tags.');
+    $this->assertIdentical($expected_tags, $build['#cache']['tags'], 'An altered cacheable block has the expected cache tags.');
     $cid = drupal_render_cid_create(array('#cache' => array('keys' => $expected_keys)));
     $this->assertIdentical(drupal_render($build), '');
     $cache_entry = $this->container->get('cache.render')->get($cid);
     $this->assertTrue($cache_entry, 'The block render element has been cached with the expected cache ID.');
     $expected_flattened_tags = array('block_view:1', 'block:test_block', 'theme:stark', 'block_plugin:test_cache', $alter_add_tag . ':1', 'rendered:1');
-    $this->assertIdentical($cache_entry->tags, $expected_flattened_tags); //, 'The block render element has been cached with the expected cache tags.');
+    $this->assertIdentical($cache_entry->tags, $expected_flattened_tags, 'The block render element has been cached with the expected cache tags.');
     $this->container->get('cache.render')->delete($cid);
 
     // Advanced: cached block, but an alter hook adds a #pre_render callback to