diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeAccessBaseTableTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeAccessBaseTableTest.php
index e5253a8..5a85c00 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeAccessBaseTableTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeAccessBaseTableTest.php
@@ -58,10 +58,12 @@ class NodeAccessBaseTableTest extends NodeTestBase {
     $num_simple_users = 2;
     $simple_users = array();
 
-    // nodes keyed by uid and nid: $nodes[$uid][$nid] = $is_private;
+    // Nodes keyed by uid and nid: $nodes[$uid][$nid] = $is_private;
     $this->nodesByUser = array();
-    $titles = array(); // Titles keyed by nid
-    $private_nodes = array(); // Array of nids marked private.
+    // Titles keyed by nid.
+    $titles = array();
+    // Array of nids marked private.
+    $private_nodes = array();
     for ($i = 0; $i < $num_simple_users; $i++) {
       $simple_users[$i] = $this->drupalCreateUser(array('access content', 'create article content'));
     }
@@ -141,7 +143,7 @@ class NodeAccessBaseTableTest extends NodeTestBase {
   /**
    * Checks taxonomy/term listings to ensure only accessible nodes are listed.
    *
-   * @param $is_admin
+   * @param boolean $is_admin
    *   A boolean indicating whether the current user is an administrator. If
    *   TRUE, all nodes should be listed. If FALSE, only public nodes and the
    *   user's own private nodes should be listed.
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeAccessRebuildTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeAccessRebuildTest.php
index 612ba36..0195a6f 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeAccessRebuildTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeAccessRebuildTest.php
@@ -27,6 +27,9 @@ class NodeAccessRebuildTest extends NodeTestBase {
     $this->web_user = $web_user;
   }
 
+  /**
+   * Test the "rebuild permissions" link.
+   */
   function testNodeAccessRebuild() {
     $this->drupalGet('admin/reports/status');
     $this->clickLink(t('Rebuild permissions'));
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeBlockTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeBlockTest.php
index 9aca3cf..9ab0381 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeBlockTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeBlockTest.php
@@ -27,11 +27,16 @@ class NodeBlockTest extends NodeTestBase {
   function setUp() {
     parent::setUp();
 
-    // Create and login user
+    // Create and login user.
     $admin_user = $this->drupalCreateUser(array('administer blocks'));
     $this->drupalLogin($admin_user);
   }
 
+  /**
+   * Test the search form.
+   *
+   * Sees if the search form is available, and one can set is to a region.
+   */
   function testSearchFormBlock() {
     // Set block title to confirm that the interface is available.
     $this->drupalPost('admin/structure/block/manage/node/syndicate/configure', array('title' => $this->randomName(8)), t('Save block'));
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeBuildContentTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeBuildContentTest.php
index 2b0dbeb..e0a9177 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeBuildContentTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeBuildContentTest.php
@@ -20,13 +20,17 @@ class NodeBuildContentTest extends NodeTestBase {
     );
   }
 
- /**
-  * Test to ensure that a node's content array is rebuilt on every call to node_build_content().
-  */
+  /**
+   * Test if nodes get rebuilt.
+   *
+   * Test to ensure that a node's content array is rebuilt on every
+   * call to node_build_content().
+   */
   function testNodeRebuildContent() {
     $node = $this->drupalCreateNode();
 
-    // Set a property in the content array so we can test for its existence later on.
+    // Set a property in the content array so we can test for its existence
+    // later on.
     $node->content['test_content_property'] = array('#value' => $this->randomString());
     $content = node_build_content($node);
 
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
index a8fbb07..d964de7 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeCreationTest.php
@@ -56,7 +56,10 @@ class NodeCreationTest extends NodeTestBase {
   }
 
   /**
-   * Create a page node and verify that a transaction rolls back the failed creation
+   * Test a failing page creation.
+   *
+   * Create a page node and verify that a transaction rolls back the failed
+   * creation.
    */
   function testFailedPageCreation() {
     // Create a node.
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeFieldMultilingualTestCase.php b/core/modules/node/lib/Drupal/node/Tests/NodeFieldMultilingualTestCase.php
index f51342b..604e488 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeFieldMultilingualTestCase.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeFieldMultilingualTestCase.php
@@ -111,7 +111,7 @@ class NodeFieldMultilingualTestCase extends WebTestBase {
     $this->assertRaw($body_value, t('Body correctly displayed using English as requested language'));
   }
 
-  /*
+  /**
    * Test multilingual field display settings.
    */
   function testMultilingualDisplaySettings() {
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodePostSettingsTest.php b/core/modules/node/lib/Drupal/node/Tests/NodePostSettingsTest.php
index 9ce688a..533cb94 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodePostSettingsTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodePostSettingsTest.php
@@ -27,7 +27,10 @@ class NodePostSettingsTest extends NodeTestBase {
   }
 
   /**
-   * Set "Basic page" content type to display post information and confirm its presence on a new node.
+   * Test post information on nodes.
+   *
+   * Set "Basic page" content type to display post information and confirm its
+   * presence on a new node.
    */
   function testPagePostInfo() {
 
@@ -50,7 +53,10 @@ class NodePostSettingsTest extends NodeTestBase {
   }
 
   /**
-   * Set "Basic page" content type to not display post information and confirm its absence on a new node.
+   * Test 'not display' post information.
+   *
+   * Set "Basic page" content type to not display post information and confirm
+   * its absence on a new node.
    */
   function testPageNotPostInfo() {
 
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeRSSContentTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeRSSContentTest.php
index 97b3b25..7c1ebd6 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeRSSContentTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeRSSContentTest.php
@@ -42,6 +42,8 @@ class NodeRSSContentTest extends NodeTestBase {
   }
 
   /**
+   * Test if custom data is added to the RSS feed.
+   *
    * Create a new node and ensure that it includes the custom data when added
    * to an RSS feed.
    */
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php
index ee12f0a..a6fa28a 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeRevisionsTest.php
@@ -45,7 +45,8 @@ class NodeRevisionsTest extends NodeTestBase {
 
       // Create revision with random title and body and update variables.
       $this->drupalCreateNode($settings);
-      $node = node_load($node->nid); // Make sure we get revision information.
+      // Make sure we get revision information.
+      $node = node_load($node->nid);
       $settings = get_object_vars($node);
 
       $nodes[] = $node;
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
index 116ca18..22116e5 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeSaveTest.php
@@ -30,7 +30,8 @@ class NodeSaveTest extends NodeTestBase {
   function setUp() {
     parent::setUp();
 
-    // Create a user that is allowed to post; we'll use this to test the submission.
+    // Create a user that is allowed to post; we'll use this to test the
+    // submission.
     $web_user = $this->drupalCreateUser(array('create article content'));
     $this->drupalLogin($web_user);
     $this->web_user = $web_user;
@@ -38,6 +39,7 @@ class NodeSaveTest extends NodeTestBase {
 
   /**
    * Import test, to check if custom node ids are saved properly.
+   *
    * Workflow:
    *  - first create a piece of content
    *  - save the content
@@ -71,6 +73,8 @@ class NodeSaveTest extends NodeTestBase {
   }
 
   /**
+   * Test the "created" and "changed" timestamps.
+   *
    * Check that the "created" and "changed" timestamps are set correctly when
    * saving a new node or updating an existing node.
    */
@@ -108,8 +112,10 @@ class NodeSaveTest extends NodeTestBase {
       'uid' => $this->web_user->uid,
       'type' => 'article',
       'title' => $this->randomName(8),
-      'created' => 280299600, // Sun, 19 Nov 1978 05:00:00 GMT
-      'changed' => 979534800, // Drupal 1.0 release.
+      // Sun, 19 Nov 1978 05:00:00 GMT
+      'created' => 280299600,
+      // Drupal 1.0 release.
+      'changed' => 979534800,
     );
 
     entity_create('node', $edit)->save();
@@ -128,6 +134,8 @@ class NodeSaveTest extends NodeTestBase {
   }
 
   /**
+   * Tests determing changes in hool_node_presave().
+   *
    * Tests determing changes in hook_node_presave() and verifies the static node
    * load cache is cleared upon save.
    */
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeTitleTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeTitleTest.php
index 1880d4f..b54818d 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeTitleTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeTitleTest.php
@@ -41,7 +41,8 @@ class NodeTitleTest extends NodeTestBase {
    */
   function testNodeTitle() {
     // Create "Basic page" content with title.
-    // Add the node to the frontpage so we can test if teaser links are clickable.
+    // Add the node to the frontpage so we can test if teaser links are
+    // clickable.
     $settings = array(
       'title' => $this->randomName(8),
       'promote' => 1,
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeTypeInitialLanguageTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeTypeInitialLanguageTest.php
index 434384f..80a0df2 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeTypeInitialLanguageTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeTypeInitialLanguageTest.php
@@ -59,7 +59,7 @@ class NodeTypeInitialLanguageTest extends NodeTestBase {
     $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
 
     // Tests the initial language after changing the site default language.
-    // First unhide the language selector
+    // First unhide the language selector.
     $edit = array(
       'node_type_language_hidden' => FALSE,
     );
diff --git a/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php b/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php
index 9fa1061..b92e3e6 100644
--- a/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/PageEditTest.php
@@ -51,7 +51,8 @@ class PageEditTest extends NodeTestBase {
     $actual_url = $this->getURL();
     $this->assertEqual($edit_url, $actual_url, t('On edit page.'));
 
-    // Check that the title and body fields are displayed with the correct values.
+    // Check that the title and body fields are displayed with the correct
+    // values.
     $active = '<span class="element-invisible">' . t('(active tab)') . '</span>';
     $link_text = t('!local-task-title!active', array('!local-task-title' => t('Edit'), '!active' => $active));
     $this->assertText(strip_tags($link_text), 0, t('Edit tab found and marked active.'));
@@ -65,7 +66,8 @@ class PageEditTest extends NodeTestBase {
     // Stay on the current page, without reloading.
     $this->drupalPost(NULL, $edit, t('Save'));
 
-    // Check that the title and body fields are displayed with the updated values.
+    // Check that the title and body fields are displayed with the updated
+    // values.
     $this->assertText($edit[$title_key], t('Title displayed.'));
     $this->assertText($edit[$body_key], t('Body displayed.'));
 
diff --git a/core/modules/node/lib/Drupal/node/Tests/PagePreviewTest.php b/core/modules/node/lib/Drupal/node/Tests/PagePreviewTest.php
index 5bfd342..88b05c6 100644
--- a/core/modules/node/lib/Drupal/node/Tests/PagePreviewTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/PagePreviewTest.php
@@ -42,7 +42,8 @@ class PagePreviewTest extends NodeTestBase {
     $this->assertText($edit[$title_key], t('Title displayed.'));
     $this->assertText($edit[$body_key], t('Body displayed.'));
 
-    // Check that the title and body fields are displayed with the correct values.
+    // Check that the title and body fields are displayed with the correct
+    // values.
     $this->assertFieldByName($title_key, $edit[$title_key], t('Title field displayed.'));
     $this->assertFieldByName($body_key, $edit[$body_key], t('Body field displayed.'));
   }
@@ -69,7 +70,8 @@ class PagePreviewTest extends NodeTestBase {
     $this->assertText($edit[$title_key], t('Title displayed.'));
     $this->assertText($edit[$body_key], t('Body displayed.'));
 
-    // Check that the title and body fields are displayed with the correct values.
+    // Check that the title and body fields are displayed with the correct
+    // values.
     $this->assertFieldByName($title_key, $edit[$title_key], t('Title field displayed.'));
     $this->assertFieldByName($body_key, $edit[$body_key], t('Body field displayed.'));
 
diff --git a/core/modules/node/lib/Drupal/node/Tests/PageViewTest.php b/core/modules/node/lib/Drupal/node/Tests/PageViewTest.php
index e3f3e54..a63dd8f 100644
--- a/core/modules/node/lib/Drupal/node/Tests/PageViewTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/PageViewTest.php
@@ -17,7 +17,10 @@ class PageViewTest extends NodeTestBase {
   }
 
   /**
-   * Creates a node and then an anonymous and unpermissioned user attempt to edit the node.
+   * Test if an unpermissioned user can edit a node.
+   *
+   * Creates a node and then an anonymous and unpermissioned user attempt to
+   * edit the node.
    */
   function testPageView() {
     // Create a node to view.
diff --git a/core/modules/node/lib/Drupal/node/Tests/SummaryLengthTest.php b/core/modules/node/lib/Drupal/node/Tests/SummaryLengthTest.php
index ca66678..bba5995 100644
--- a/core/modules/node/lib/Drupal/node/Tests/SummaryLengthTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/SummaryLengthTest.php
@@ -17,7 +17,10 @@ class SummaryLengthTest extends NodeTestBase {
   }
 
   /**
-   * Creates a node and then an anonymous and unpermissioned user attempt to edit the node.
+   * Test if the summary in 600 characters.
+   *
+   * Creates a node and then an anonymous and unpermissioned user attempt to
+   * edit the node.
    */
   function testSummaryLength() {
     // Create a node to view.
@@ -34,7 +37,7 @@ class SummaryLengthTest extends NodeTestBase {
 
     // Attempt to access the front page.
     $this->drupalGet("node");
-    // The node teaser when it has 600 characters in length
+    // The node teaser when it has 600 characters in length.
     $expected = 'What is a Drupalism?';
     $this->assertRaw($expected, t('Check that the summary is 600 characters in length'), 'Node');
 
@@ -43,7 +46,8 @@ class SummaryLengthTest extends NodeTestBase {
     $instance['display']['teaser']['settings']['trim_length'] = 200;
     field_update_instance($instance);
 
-    // Attempt to access the front page again and check if the summary is now only 200 characters in length.
+    // Attempt to access the front page again and check if the summary is now
+    // only 200 characters in length.
     $this->drupalGet("node");
     $this->assertNoRaw($expected, t('Check that the summary is not longer than 200 characters'), 'Node');
   }