diff --git a/core/modules/dblog/src/Controller/DbLogController.php b/core/modules/dblog/src/Controller/DbLogController.php
index 9c6da3e..cccd91d 100644
--- a/core/modules/dblog/src/Controller/DbLogController.php
+++ b/core/modules/dblog/src/Controller/DbLogController.php
@@ -230,7 +230,6 @@ public function overview() {
    * @return array
    *   If the ID is located in the Database Logging table, a build array in the
    *   format expected by drupal_render();
-   *
    */
   public function eventDetails($event_id) {
     $build = array();
@@ -316,7 +315,7 @@ public function eventDetails($event_id) {
    */
   protected function buildFilterQuery() {
     if (empty($_SESSION['dblog_overview_filter'])) {
-      return;
+      return NULL;
     }
 
     $this->moduleHandler->loadInclude('dblog', 'admin.inc');
@@ -346,7 +345,7 @@ protected function buildFilterQuery() {
   /**
    * Formats a database log message.
    *
-   * @param stdClass $row
+   * @param \stdClass $row
    *   The record from the watchdog table. The object properties are: wid, uid,
    *   severity, type, timestamp, message, variables, link, name.
    *
diff --git a/core/modules/dblog/src/Tests/DbLogTest.php b/core/modules/dblog/src/Tests/DbLogTest.php
index 03b45ad..0926cc4 100644
--- a/core/modules/dblog/src/Tests/DbLogTest.php
+++ b/core/modules/dblog/src/Tests/DbLogTest.php
@@ -28,7 +28,7 @@ class DbLogTest extends WebTestBase {
    *
    * @var array
    */
-  public static $modules = array('dblog', 'node', 'forum', 'help');
+  public static $modules = array('dblog', 'node', 'forum', 'help', 'block');
 
   /**
    * A user with some relevant administrative permissions.
@@ -44,11 +44,19 @@ class DbLogTest extends WebTestBase {
    */
   protected $webUser;
 
+  /**
+   * {@inheritdoc}
+   */
   protected function setUp() {
     parent::setUp();
+    $this->drupalPlaceBlock('system_breadcrumb_block');
 
     // Create users with specific permissions.
-    $this->adminUser = $this->drupalCreateUser(array('administer site configuration', 'access administration pages', 'access site reports', 'administer users'));
+    $this->adminUser = $this->drupalCreateUser(array(
+      'administer site configuration',
+      'access administration pages',
+      'access site reports',
+      'administer users'));
     $this->webUser = $this->drupalCreateUser(array());
   }
 
@@ -59,7 +67,7 @@ protected function setUp() {
    * Database Logging module functionality through both the admin and user
    * interfaces.
    */
-  function testDbLog() {
+  public function testDbLog() {
     // Login the admin user.
     $this->drupalLogin($this->adminUser);
 
@@ -135,7 +143,7 @@ private function verifyCron($row_limit) {
   private function generateLogEntries($count, $options = array()) {
     global $base_root;
 
-    // Prepare the fields to be logged
+    // Prepare the fields to be logged.
     $log = $options + array(
       'channel'     => 'system',
       'message'     => 'Dblog test log message',
@@ -251,7 +259,7 @@ protected function verifySort($sort = 'asc', $order = 'Date') {
   }
 
   /**
-   * Test the escaping of links in the operation row of a database log detail
+   * Tests the escaping of links in the operation row of a database log detail
    * page.
    */
   private function verifyLinkEscaping() {
@@ -268,10 +276,10 @@ private function verifyLinkEscaping() {
     // Check if the link exists (unescaped).
     $this->assertRaw($link);
 
-    // Check for XSS filtering
+    // Check for XSS filtering.
     $js_txt = 'This should not pop up!';
     $js = '<script>alert("' . $js_txt . '");</script>';
-      $this->generateLogEntries(1, array(
+    $this->generateLogEntries(1, array(
       'message' => $message,
       'link' => $link . $js,
     ));
@@ -282,9 +290,9 @@ private function verifyLinkEscaping() {
     // Check if the link exists (unescaped).
     $this->assertRaw($link);
 
-    // Check if javascript was escaped
+    // Check if javascript was escaped.
     $this->assertNoRaw($js, 'Detail view: javascript in link is blocked');
-    $this->assertRaw($js_txt, 'Detail view: javascript text exists ');
+    $this->assertRaw($js_txt, 'Detail view: javascript text exists');
   }
 
   /**
@@ -307,10 +315,10 @@ private function verifyMessageEscaping() {
     // Check if the link exists (unescaped).
     $this->assertRaw($message);
 
-    // Check for XSS filtering
+    // Check for XSS filtering.
     $js_txt = 'This should not pop up!';
     $js = '<script>alert("' . $js_txt . '");</script>';
-      $this->generateLogEntries(1, array(
+    $this->generateLogEntries(1, array(
       'message' => $message . $js,
       'link' => $link,
     ));
@@ -321,7 +329,7 @@ private function verifyMessageEscaping() {
     // Check if the link exists (unescaped).
     $this->assertRaw($message);
 
-    // Check if javascript was escaped
+    // Check if javascript was escaped.
     $this->assertNoRaw($js, 'Detail view: javascript in message is blocked');
     $this->assertRaw($js_txt, 'Detail view: javascript text exists ');
   }
@@ -418,7 +426,11 @@ private function doUser() {
    */
   private function doNode($type) {
     // Create user.
-    $perm = array('create ' . $type . ' content', 'edit own ' . $type . ' content', 'delete own ' . $type . ' content');
+    $perm = array(
+      'create ' . $type . ' content',
+      'edit own ' . $type . ' content',
+      'delete own ' . $type . ' content',
+    );
     $user = $this->drupalCreateUser($perm);
     // Login user.
     $this->drupalLogin($user);