diff --git a/core/modules/filter/lib/Drupal/filter/Tests/FilterHooksTest.php b/core/modules/filter/lib/Drupal/filter/Tests/FilterHooksTest.php
index a6522c2..3d7e155 100644
--- a/core/modules/filter/lib/Drupal/filter/Tests/FilterHooksTest.php
+++ b/core/modules/filter/lib/Drupal/filter/Tests/FilterHooksTest.php
@@ -36,7 +36,10 @@ class FilterHooksTest extends WebTestBase {
   }
 
   /**
-   * Tests that hooks run correctly on creating, editing, and deleting a text format.
+   * Tests hooks on format management.
+   *
+   * Tests that hooks run correctly on creating, editing, and deleting a text
+   * format.
    */
   function testFilterHooks() {
     // Add a text format.
diff --git a/core/modules/filter/lib/Drupal/filter/Tests/FilterNoFormatTest.php b/core/modules/filter/lib/Drupal/filter/Tests/FilterNoFormatTest.php
index 01c3f75..f91b8cd 100644
--- a/core/modules/filter/lib/Drupal/filter/Tests/FilterNoFormatTest.php
+++ b/core/modules/filter/lib/Drupal/filter/Tests/FilterNoFormatTest.php
@@ -22,8 +22,10 @@ class FilterNoFormatTest extends WebTestBase {
   }
 
   /**
-   * Tests if text with no format is filtered the same as text in the fallback
-   * format.
+   * Tests text without format.
+   *
+   * Tests if text with no format is filtered the same way as text in the
+   * fallback format.
    */
   function testCheckMarkupNoFormat() {
     // Create some text. Include some HTML and line breaks, so we get a good
diff --git a/core/modules/filter/lib/Drupal/filter/Tests/FilterSecurityTest.php b/core/modules/filter/lib/Drupal/filter/Tests/FilterSecurityTest.php
index 3c35629..9c2c46c 100644
--- a/core/modules/filter/lib/Drupal/filter/Tests/FilterSecurityTest.php
+++ b/core/modules/filter/lib/Drupal/filter/Tests/FilterSecurityTest.php
@@ -51,7 +51,10 @@ class FilterSecurityTest extends WebTestBase {
   }
 
   /**
-   * Tests that filtered content is emptied when an actively used filter module is disabled.
+   * Tests removal of filtered content when an active filter is disabled.
+   *
+   * Tests that filtered content is emptied when an actively used filter module
+   * is disabled.
    */
   function testDisableFilterModule() {
     // Create a new node.