diff --git a/tests/node_admin_ui.test b/tests/node_admin_ui.test
index f49b469..0846433 100644
--- a/tests/node_admin_ui.test
+++ b/tests/node_admin_ui.test
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Contains NodeAdminUITest
+ * Contains NodeAdminUITest.
  */
 
 /**
@@ -18,7 +18,7 @@ class NodeAdminUITest extends DrupalWebTestCase {
 
   /**
    * @var object
-   *  cotentn admin user object.
+   *  content admin user object.
    */
   protected $content_admin;
 
@@ -32,10 +32,9 @@ class NodeAdminUITest extends DrupalWebTestCase {
   }
 
   /**
-   * Set up some required modules
+   * Set up some required modules.
    */
   function setUp() {
-    // We can only test the plugins that don't require other modules
     parent::setUp('node', 'views', 'views_bulk_operations', 'node_admin');
     $this->page_admin = $this->drupalCreateUser(array('administer page nodes', 'create page content', 'delete any page content', 'edit any page content'));
     $this->content_admin =  $this->drupalCreateUser(array('administer nodes', 'administer page nodes', 'administer story nodes', 'delete any page content', 'delete any story content'));
@@ -43,23 +42,25 @@ class NodeAdminUITest extends DrupalWebTestCase {
 
 
   /**
-   * Test page content type specific functionality.
+   * Test page content type administer functionality.
    */
   function testPageAdminPages() {
-    // Make sure page admin has access.
+    // Login as content type specific node admin.
     $this->drupalLogin($this->page_admin);
+
+    // Make sure page admin has access.
     $this->drupalGet('admin/content/node/page');
     $this->assertResponse(200);
 
-    // No access to other content type admin page
+    // No access to other content type admin page.
     $this->drupalGet('admin/content/node/story');
     $this->assertResponse(403);
 
-    // or invalid content type.
+    // Check 403 for invalid content type.
     $this->drupalGet('admin/content/node/foo');
     $this->assertResponse(403);
 
-    // Create a new page node
+    // Create a new page node.
     $node = $this->drupalCreateNode(array('type' => 'page'));
     $this->drupalGet('admin/content/node/page');
 
@@ -71,17 +72,18 @@ class NodeAdminUITest extends DrupalWebTestCase {
    * Test content admin user functionality.
    */
   function testContentAdminPages() {
-    // Make sure content admin has access to all admin pages.
+    // Login as global node admin.
     $this->drupalLogin($this->content_admin);
+
+    // Make sure content admin has access to all admin pages.
     $this->drupalGet('admin/content/node');
     $this->assertResponse(200);
-
     $this->drupalGet('admin/content/node/page');
     $this->assertResponse(200);
     $this->drupalGet('admin/content/node/story');
     $this->assertResponse(200);
 
-    // Create a page node and a story
+    // Create a page node and a story.
     $page = $this->drupalCreateNode(array('type' => 'page'));
     $story = $this->drupalCreateNode(array('type' => 'story'));
     $this->drupalGet('admin/content/node');
@@ -89,11 +91,10 @@ class NodeAdminUITest extends DrupalWebTestCase {
     $this->assertNodeItem($page, TRUE);
     $this->assertNodeItem($story, TRUE);
 
-    // Only specific content type in it's own admin page.
+    // Only specific content type nodes in its own admin page.
     $this->drupalGet('admin/content/node/page');
     $this->assertNodeItem($page);
     $this->assertNoNodeItem($story);
-
     $this->drupalGet('admin/content/node/story');
     $this->assertNodeItem($story);
     $this->assertNoNodeItem($page);
@@ -103,7 +104,7 @@ class NodeAdminUITest extends DrupalWebTestCase {
    * Asserts node item in node admin list.
    *
    * @param object $node
-   *   Node object to asset.
+   *   Node object to assert.
    * @param bool $is_admin_page
    *   Flag to specify core node admin page or not.
    *
@@ -124,13 +125,13 @@ class NodeAdminUITest extends DrupalWebTestCase {
    * Asserts no node item in node admin list.
    *
    * @param object $node
-   *   Node object to asset.
+   *   Node object to assert.
    * @param bool $is_admin_page
    *   Flag to specify core node admin page or not.
    *
    */
   protected function assertNoNodeItem($node, $is_admin_page = FALSE) {
-    // Make sure node present with link.
+    // Make sure node title is present as link.
     $this->assertNoLink($node->title);
     $this->assertNoLinkByHref('node/' . $node->nid);
     // Check for no edit/delete link of this node.