diff --git a/core/modules/simpletest/tests/common.test b/core/modules/simpletest/tests/common.test
index a5ab249..137aff1 100644
--- a/core/modules/simpletest/tests/common.test
+++ b/core/modules/simpletest/tests/common.test
@@ -345,7 +345,8 @@ class CommonURLUnitTest extends DrupalWebTestCase {
 }
 
 /**
- * Tests for the check_plain(), filter_xss() and format_string() functions.
+ * Tests for the check_plain(), filter_xss(), format_string(), and check_url
+ * functions.
  */
 class CommonXssUnitTest extends DrupalUnitTestCase {
 
@@ -416,6 +417,9 @@ class CommonXssUnitTest extends DrupalUnitTestCase {
   }
 }
 
+/**
+ * Tests file size parsing and formatting functions.
+ */
 class CommonSizeTestCase extends DrupalUnitTestCase {
   protected $exact_test_cases;
   protected $rounded_test_cases;
@@ -1833,7 +1837,7 @@ class ValidUrlTestCase extends DrupalUnitTestCase {
   public static function getInfo() {
     return array(
       'name' => 'Valid Url',
-      'description' => "Performs tests on Drupal's valid url function.",
+      'description' => "Performs tests on Drupal's valid_url function.",
       'group' => 'System'
     );
   }
@@ -2068,7 +2072,7 @@ class DrupalDataApiTest extends DrupalWebTestCase {
 /**
  * Tests Simpletest error and exception collector.
  */
-class DrupalErrorCollectionUnitTest extends DrupalWebTestCase {
+class DrupalErrorCollectionTestCase extends DrupalWebTestCase {
 
   /**
    * Errors triggered during the test.
@@ -2242,7 +2246,7 @@ class DrupalSystemListingTestCase extends DrupalWebTestCase {
 /**
  * Tests for the format_date() function.
  */
-class FormatDateUnitTest extends DrupalWebTestCase {
+class FormatDateTestCase extends DrupalWebTestCase {
 
   /**
    * Arbitrary langcode for a custom language.
@@ -2359,7 +2363,7 @@ class FormatDateUnitTest extends DrupalWebTestCase {
 }
 
 /**
- * Tests for the format_date() function.
+ * Tests for the drupal_attributes() function.
  */
 class DrupalAttributesUnitTest extends DrupalUnitTestCase {
   public static function getInfo() {