diff --git a/core/modules/block/custom_block/lib/Drupal/custom_block/Tests/CustomBlockListTest.php b/core/modules/block/custom_block/lib/Drupal/custom_block/Tests/CustomBlockListTest.php
index 935e229..4994430 100644
--- a/core/modules/block/custom_block/lib/Drupal/custom_block/Tests/CustomBlockListTest.php
+++ b/core/modules/block/custom_block/lib/Drupal/custom_block/Tests/CustomBlockListTest.php
@@ -40,7 +40,7 @@ public function testListing() {
     $this->drupalGet('admin/structure/custom-blocks');
 
     // Test for the page title.
-    $this->assertTitle('Custom blocks | Drupal');
+    $this->assertTitle(t('Custom blocks | Drupal'));
 
     // Test for the table.
     $element = $this->xpath('//div[@class="l-content"]//table');
@@ -51,14 +51,14 @@ public function testListing() {
     $this->assertEqual(count($elements), 2, 'Correct number of table header cells found.');
 
     // Test the contents of each th cell.
-    $expected_items = array('Label', 'Operations');
+    $expected_items = array(t('Label'), t('Operations'));
     foreach ($elements as $key => $element) {
       $this->assertIdentical((string) $element[0], $expected_items[$key]);
     }
 
     // Add a new entity using the operations link.
-    $this->assertLink('Add custom block');
-    $this->clickLink('Add custom block');
+    $this->assertLink(t('Add custom block'));
+    $this->clickLink(t('Add custom block'));
     $this->assertResponse(200);
     $edit = array();
     $langcode = Language::LANGCODE_NOT_SPECIFIED;
@@ -68,7 +68,7 @@ public function testListing() {
 
     // Confirm that once the user returns to the listing, the text of the label
     // (versus elsewhere on the page).
-    $this->assertFieldByXpath('//td', 'Antelope', "Label found for added block.");
+    $this->assertFieldByXpath('//td', t('Antelope'), "Label found for added block.");
 
     // Check the number of table row cells.
     $elements = $this->xpath('//div[@class="l-content"]//table/tbody/tr[@class="odd"]/td');
@@ -76,7 +76,7 @@ public function testListing() {
     // Check the contents of each row cell. The first cell contains the label,
     // the second contains the machine name, and the third contains the
     // operations list.
-    $this->assertIdentical((string) $elements[0], 'Antelope');
+    $this->assertIdentical((string) $elements[0], t('Antelope'));
 
     // Edit the entity using the operations link.
     $blocks = $this->container
@@ -86,7 +86,7 @@ public function testListing() {
     $block = reset($blocks);
     if (!empty($block)) {
       $this->assertLinkByHref('block/' . $block->id());
-      $this->clickLink('Edit');
+      $this->clickLink(t('Edit'));
       $this->assertResponse(200);
       $this->assertTitle(t('Edit custom block Antelope | Drupal'));
       $edit = array('info' => 'Albatross');
@@ -98,18 +98,18 @@ public function testListing() {
 
     // Confirm that once the user returns to the listing, the text of the label
     // (versus elsewhere on the page).
-    $this->assertFieldByXpath('//td', 'Albatross', "Label found for updated 'Albatross' entity.");
+    $this->assertFieldByXpath('//td', t('Albatross'), "Label found for updated 'Albatross' entity.");
 
     // Delete the added entity using the operations link.
     $this->assertLinkByHref('block/' . $block->id() . '/delete');
-    $this->clickLink('Delete');
+    $this->clickLink(t('Delete'));
     $this->assertResponse(200);
     $this->assertTitle(t('Are you sure you want to delete Albatross? | Drupal'));
     $this->drupalPost(NULL, array(), t('Delete'));
 
     // Verify that the text of the label and machine name does not appear in
     // the list (though it may appear elsewhere on the page).
-    $this->assertNoFieldByXpath('//td', 'Albatross', "No label found for deleted 'Albatross' entity.");
+    $this->assertNoFieldByXpath('//td', t('Albatross'), "No label found for deleted 'Albatross' entity.");
 
     // Confirm that the empty text is displayed.
     $this->assertText(t('There is no Custom Block yet.'));