diff --git a/core/modules/comment/src/Plugin/views/field/Username.php b/core/modules/comment/src/Plugin/views/field/Username.php
index 7568a81..c82a301 100644
--- a/core/modules/comment/src/Plugin/views/field/Username.php
+++ b/core/modules/comment/src/Plugin/views/field/Username.php
@@ -43,11 +43,6 @@ protected function defineOptions() {
     return $options;
   }
 
-  public function query() {
-    parent::query();
-  }
-
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/user/src/Tests/Views/HandlerFieldUserNameTest.php b/core/modules/user/src/Tests/Views/HandlerFieldUserNameTest.php
index 3c0ef73..8312b11 100644
--- a/core/modules/user/src/Tests/Views/HandlerFieldUserNameTest.php
+++ b/core/modules/user/src/Tests/Views/HandlerFieldUserNameTest.php
@@ -37,7 +37,6 @@ public function testUserName() {
     $username = $view->result[0]->users_field_data_name = $this->randomMachineName();
     $view->result[0]->uid = 1;
     $render = $view->field['name']->advancedRender($view->result[0]);
-    debug($render);
     $this->assertTrue(strpos($render, $username) !== FALSE, 'If link to user is checked the username should be part of the output.');
     $this->assertTrue(strpos($render, 'user/1') !== FALSE, 'If link to user is checked the link to the user should appear as well.');
 
@@ -56,7 +55,6 @@ public function testUserName() {
     $view->field['name']->options['overwrite_anonymous'] = TRUE;
     $anon_name = $view->field['name']->options['anonymous_text'] = $this->randomMachineName();
     $render = $view->field['name']->advancedRender($view->result[0]);
-    debug($render);
     $this->assertIdentical($render, $anon_name , 'For user0 it should use the configured anonymous text if overwrite_anonymous is checked.');
     $view->result[0]->uid = 1;
     $render = $view->field['name']->advancedRender($view->result[0]);
diff --git a/core/modules/views/src/ViewsData.php b/core/modules/views/src/ViewsData.php
index 9155df6..81469e7 100644
--- a/core/modules/views/src/ViewsData.php
+++ b/core/modules/views/src/ViewsData.php
@@ -293,9 +293,6 @@ public function fetchBaseTables() {
 
     foreach ($this->get() as $table => $info) {
       if (!empty($info['table']['base'])) {
-        if (!isset($info['table']['base']['title'])) {
-          debug($table);
-        }
         $tables[$table] = array(
           'title' => $info['table']['base']['title'],
           'help' => !empty($info['table']['base']['help']) ? $info['table']['base']['help'] : '',
diff --git a/core/modules/views/tests/modules/views_test_config/test_views/views.view.test_groupwise_term_ui.yml b/core/modules/views/tests/modules/views_test_config/test_views/views.view.test_groupwise_term_ui.yml
index 09ca412..55747a7 100644
--- a/core/modules/views/tests/modules/views_test_config/test_views/views.view.test_groupwise_term_ui.yml
+++ b/core/modules/views/tests/modules/views_test_config/test_views/views.view.test_groupwise_term_ui.yml
@@ -35,7 +35,7 @@ display:
           id: nid
           relationship: tid_representative
           table: node_field_data
-          plugin_id: node_field_data
+          plugin_id: node
           entity_type: node
           entity_field: nid
       pager:
diff --git a/core/modules/views/tests/src/Unit/EntityViewsDataTest.php b/core/modules/views/tests/src/Unit/EntityViewsDataTest.php
index 827eb35..e943f8a 100644
--- a/core/modules/views/tests/src/Unit/EntityViewsDataTest.php
+++ b/core/modules/views/tests/src/Unit/EntityViewsDataTest.php
@@ -791,8 +791,6 @@ protected function assertEntityReferenceField($data) {
     $this->assertEquals('numeric', $data['filter']['id']);
     $this->assertEquals('numeric', $data['argument']['id']);
     $this->assertEquals('standard', $data['sort']['id']);
-
-    $a = 123;
   }
 
   /**
diff --git a/core/modules/views_ui/src/Tests/ViewEditTest.php b/core/modules/views_ui/src/Tests/ViewEditTest.php
index 61030bd..61342c4 100644
--- a/core/modules/views_ui/src/Tests/ViewEditTest.php
+++ b/core/modules/views_ui/src/Tests/ViewEditTest.php
@@ -29,7 +29,7 @@ class ViewEditTest extends UITestBase {
   /**
    * Tests the delete link on a views UI.
    */
-  public function testsDeleteLink() {
+  public function testDeleteLink() {
     $this->drupalGet('admin/structure/views/view/test_view');
     $this->assertLink(t('Delete view'), 0, 'Ensure that the view delete link appears');
 
@@ -48,7 +48,7 @@ public function testsDeleteLink() {
   /**
    * Tests the machine name form.
    */
-  public function testsMachineNameOption() {
+  public function testMachineNameOption() {
     $this->drupalGet('admin/structure/views/view/test_view');
     // Add a new attachment display.
     $this->drupalPostForm(NULL, array(), 'Add Attachment');
@@ -142,7 +142,7 @@ public function testEditFormLanguageOptions() {
   /**
    * Tests Representative Node for a Taxonomy Term.
    */
-  public function testsRelationRepresentativeNode() {
+  public function testRelationRepresentativeNode() {
     // Populate and submit the form.
     $edit["name[taxonomy_term_field_data.tid_representative]"] = TRUE;
     $this->drupalPostForm('admin/structure/views/nojs/add-handler/test_groupwise_term_ui/default/relationship', $edit, 'Add and configure relationships');