diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php
index 172ac8a..de3be86 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php
@@ -36,7 +36,7 @@ class NodeRevisionsTest extends NodeTestBase {
 
     $this->drupalLogin($web_user);
 
-    // Create an initial node.
+    // Create initial node.
     $node = $this->drupalCreateNode();
     $settings = get_object_vars($node);
     $settings['revision'] = 1;
@@ -44,7 +44,7 @@ class NodeRevisionsTest extends NodeTestBase {
     $nodes = array();
     $logs = array();
 
-    // Get the original node.
+    // Get original node.
     $nodes[] = $node;
 
     // Create three revisions.
@@ -52,7 +52,7 @@ class NodeRevisionsTest extends NodeTestBase {
     for ($i = 0; $i < $revision_count; $i++) {
       $logs[] = $settings['log'] = $this->randomName(32);
 
-      // Create revision with a random title and body and update variables.
+      // Create revision with random title and body and update variables.
       $this->drupalCreateNode($settings);
       $node = node_load($node->nid); // Make sure we get revision information.
       $settings = get_object_vars($node);
@@ -65,59 +65,46 @@ class NodeRevisionsTest extends NodeTestBase {
   }
 
   /**
-   * Tests node revision CRUD operations
+   * Check node revision related operations.
    */
   function testRevisions() {
     $nodes = $this->nodes;
     $logs = $this->logs;
 
-    // Get the last node for simple checks.
+    // Get last node for simple checks.
     $node = $nodes[3];
 
     // Confirm the correct revision text appears on "view revisions" page.
     $this->drupalGet("node/$node->nid/revisions/$node->vid/view");
-    $this->assertText($node->body[LANGUAGE_NOT_SPECIFIED][0]['value'], 'Correct text displays for version.');
+    $this->assertText($node->body[LANGUAGE_NOT_SPECIFIED][0]['value'], t('Correct text displays for version.'));
 
     // Confirm the correct log message appears on "revisions overview" page.
     $this->drupalGet("node/$node->nid/revisions");
     foreach ($logs as $log) {
-      $this->assertText($log, 'Log message found.');
+      $this->assertText($log, t('Log message found.'));
     }
 
     // Confirm that this is the current revision.
     $this->assertTrue($node->isCurrentRevision(), 'Third node revision is the current one.');
 
-    // Confirm that revisions are properly reverted.
+    // Confirm that revisions revert properly.
     $this->drupalPost("node/$node->nid/revisions/{$nodes[1]->vid}/revert", array(), t('Revert'));
     $this->assertRaw(t('@type %title has been reverted back to the revision from %revision-date.',
-      array(
-        '@type' => 'Basic page',
-        '%title' => $nodes[1]->title,
-        '%revision-date' => format_date($nodes[1]->revision_timestamp)
-      )),
-      'Revision reverted.');
+                        array('@type' => 'Basic page', '%title' => $nodes[1]->title,
+                              '%revision-date' => format_date($nodes[1]->revision_timestamp))), t('Revision reverted.'));
     $reverted_node = node_load($node->nid);
-    $this->assertTrue(($nodes[1]->body[LANGUAGE_NOT_SPECIFIED][0]['value'] == $reverted_node->body[LANGUAGE_NOT_SPECIFIED][0]['value']), 'Node reverted correctly.');
+    $this->assertTrue(($nodes[1]->body[LANGUAGE_NOT_SPECIFIED][0]['value'] == $reverted_node->body[LANGUAGE_NOT_SPECIFIED][0]['value']), t('Node reverted correctly.'));
 
     // Confirm that this is not the current version.
     $node = node_load($node->nid, $node->vid);
     $this->assertFalse($node->isCurrentRevision(), 'Third node revision is not the current one.');
 
-    // Confirm revisions are properly deleted.
+    // Confirm revisions delete properly.
     $this->drupalPost("node/$node->nid/revisions/{$nodes[1]->vid}/delete", array(), t('Delete'));
     $this->assertRaw(t('Revision from %revision-date of @type %title has been deleted.',
-      array(
-        '%revision-date' => format_date($nodes[1]->revision_timestamp),
-        '@type' => 'Basic page',
-        '%title' => $nodes[1]->title,
-      )),
-      t('Revision deleted.'));
-    $this->assertTrue(db_query('SELECT COUNT(vid) FROM {node_revision} WHERE nid = :nid and vid = :vid',
-      array(
-        ':nid' => $node->nid,
-        ':vid' => $nodes[1]->vid
-      ))->fetchField() == 0,
-      t('Revision not found.'));
+                        array('%revision-date' => format_date($nodes[1]->revision_timestamp),
+                              '@type' => 'Basic page', '%title' => $nodes[1]->title)), t('Revision deleted.'));
+    $this->assertTrue(db_query('SELECT COUNT(vid) FROM {node_revision} WHERE nid = :nid and vid = :vid', array(':nid' => $node->nid, ':vid' => $nodes[1]->vid))->fetchField() == 0, t('Revision not found.'));
 
     // Set the revision timestamp to an older date to make sure that the
     // confirmation message correctly displays the stored revision date.
@@ -241,7 +228,7 @@ class NodeRevisionsAllTestCase extends NodeTestBase {
   }
 
   /**
-   * Check node revision related operations.
+   * Checks node revision operations.
    */
   function testRevisions() {
     $nodes = $this->nodes;