diff --git a/core/modules/editor/src/Tests/EditorAdminTest.php b/core/modules/editor/src/Tests/EditorAdminTest.php
index 26fb9d19df1ea7d2c4eb0c53dce9d4f456eb19a5..e133a26fb5f2386d72383856f00ee68a34f3a261 100644
--- a/core/modules/editor/src/Tests/EditorAdminTest.php
+++ b/core/modules/editor/src/Tests/EditorAdminTest.php
@@ -23,6 +23,13 @@ class EditorAdminTest extends WebTestBase {
    */
   public static $modules = array('filter', 'editor');
 
+  /**
+   * A user with the 'administer filters' permission.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $adminUser;
+
   protected function setUp() {
     parent::setUp();
 
@@ -36,14 +43,14 @@ protected function setUp() {
     $filtered_html_format->save();
 
     // Create admin user.
-    $this->admin_user = $this->drupalCreateUser(array('administer filters'));
+    $this->adminUser = $this->drupalCreateUser(array('administer filters'));
   }
 
   /**
    * Tests an existing format without any editors available.
    */
   public function testNoEditorAvailable() {
-    $this->drupalLogin($this->admin_user);
+    $this->drupalLogin($this->adminUser);
     $this->drupalGet('admin/config/content/formats/manage/filtered_html');
 
     // Ensure the form field order is correct.
@@ -68,7 +75,7 @@ public function testNoEditorAvailable() {
    */
   public function testAddEditorToExistingFormat() {
     $this->enableUnicornEditor();
-    $this->drupalLogin($this->admin_user);
+    $this->drupalLogin($this->adminUser);
     $this->drupalGet('admin/config/content/formats/manage/filtered_html');
     $edit = $this->selectUnicornEditor();
     // Configure Unicorn Editor's setting to another value.
@@ -82,7 +89,7 @@ public function testAddEditorToExistingFormat() {
    */
   public function testAddEditorToNewFormat() {
     $this->enableUnicornEditor();
-    $this->drupalLogin($this->admin_user);
+    $this->drupalLogin($this->adminUser);
     $this->drupalGet('admin/config/content/formats/add');
     // Configure the text format name.
     $edit = array(
diff --git a/core/modules/editor/src/Tests/EditorLoadingTest.php b/core/modules/editor/src/Tests/EditorLoadingTest.php
index 910f6faab9dcd0048b5f1f692e4fbaf48d1c1d87..f0b8877a878aaddc542cb66e96c31b87ebeeca3c 100644
--- a/core/modules/editor/src/Tests/EditorLoadingTest.php
+++ b/core/modules/editor/src/Tests/EditorLoadingTest.php
@@ -23,6 +23,27 @@ class EditorLoadingTest extends WebTestBase {
    */
   public static $modules = array('filter', 'editor', 'editor_test', 'node');
 
+  /**
+   * An untrusted user, with access to the 'plain_text' format.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $untrustedUser;
+
+  /**
+   * A normal user with additional access to the 'filtered_html' format.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $normalUser;
+
+  /**
+   * A privileged user with additional access to the 'full_html' format.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $privilegedUser;
+
   protected function setUp() {
     parent::setUp();
 
@@ -48,13 +69,10 @@ protected function setUp() {
       'name' => 'Article',
     ));
 
-    // Create 3 users, each with access to different text formats:
-    //   - "untrusted": plain_text
-    //   - "normal": plain_text, filtered_html
-    //   - "privileged": plain_text, filtered_html, full_html
-    $this->untrusted_user = $this->drupalCreateUser(array('create article content', 'edit any article content'));
-    $this->normal_user = $this->drupalCreateUser(array('create article content', 'edit any article content', 'use text format filtered_html'));
-    $this->privileged_user = $this->drupalCreateUser(array('create article content', 'edit any article content', 'use text format filtered_html', 'use text format full_html'));
+    // Create 3 users, each with access to different text formats.
+    $this->untrustedUser = $this->drupalCreateUser(array('create article content', 'edit any article content'));
+    $this->normalUser = $this->drupalCreateUser(array('create article content', 'edit any article content', 'use text format filtered_html'));
+    $this->privilegedUser = $this->drupalCreateUser(array('create article content', 'edit any article content', 'use text format filtered_html', 'use text format full_html'));
   }
 
   /**
@@ -71,19 +89,19 @@ public function testLoading() {
     // The normal user:
     // - has access to 2 text formats;
     // - doesn't have access to the full_html text format, so: no text editor.
-    $this->drupalLogin($this->normal_user);
+    $this->drupalLogin($this->normalUser);
     $this->drupalGet('node/add/article');
     list( , $editor_settings_present, $editor_js_present, $body, $format_selector) = $this->getThingsToCheck();
     $this->assertFalse($editor_settings_present, 'No Text Editor module settings.');
     $this->assertFalse($editor_js_present, 'No Text Editor JavaScript.');
     $this->assertTrue(count($body) === 1, 'A body field exists.');
     $this->assertTrue(count($format_selector) === 0, 'No text format selector exists on the page because the user only has access to a single format.');
-    $this->drupalLogout($this->normal_user);
+    $this->drupalLogout($this->normalUser);
 
-    // The normal user:
+    // The privileged user:
     // - has access to 2 text formats (and the fallback format);
     // - does have access to the full_html text format, so: Unicorn text editor.
-    $this->drupalLogin($this->privileged_user);
+    $this->drupalLogin($this->privilegedUser);
     $this->drupalGet('node/add/article');
     list($settings, $editor_settings_present, $editor_js_present, $body, $format_selector) = $this->getThingsToCheck();
     $expected = array('formats' => array('full_html' => array(
@@ -100,7 +118,7 @@ public function testLoading() {
     $this->assertTrue(count($format_selector) === 1, 'A single text format selector exists on the page.');
     $specific_format_selector = $this->xpath('//select[contains(@class, "filter-list") and contains(@class, "editor") and @data-editor-for="edit-body-0-value"]');
     $this->assertTrue(count($specific_format_selector) === 1, 'A single text format selector exists on the page and has the "editor" class and a "data-editor-for" attribute with the correct value.');
-    $this->drupalLogout($this->privileged_user);
+    $this->drupalLogout($this->privilegedUser);
 
     // Also associate a text editor with the "Plain Text" text format.
     $editor = entity_create('editor', array(
@@ -112,7 +130,7 @@ public function testLoading() {
     // The untrusted user:
     // - has access to 1 text format (plain_text);
     // - has access to the plain_text text format, so: Unicorn text editor.
-    $this->drupalLogin($this->untrusted_user);
+    $this->drupalLogin($this->untrustedUser);
     $this->drupalGet('node/add/article');
     list($settings, $editor_settings_present, $editor_js_present, $body, $format_selector) = $this->getThingsToCheck();
     $expected = array('formats' => array('plain_text' => array(
diff --git a/core/modules/editor/src/Tests/EditorSecurityTest.php b/core/modules/editor/src/Tests/EditorSecurityTest.php
index 6a19d3e696b2103ee1c6b95d2dcae9adc8823323..f63fce292ef557457e9d3ed936588354dac4a531 100644
--- a/core/modules/editor/src/Tests/EditorSecurityTest.php
+++ b/core/modules/editor/src/Tests/EditorSecurityTest.php
@@ -51,14 +51,14 @@ class EditorSecurityTest extends WebTestBase {
    *
    * @var \Drupal\user\UserInterface
    */
-  protected $untrusted_user;
+  protected $untrustedUser;
 
   /**
    * User with access to Restricted HTML text format with text editor.
    *
    * @var \Drupal\user\UserInterface
    */
-  protected $normal_user;
+  protected $normalUser;
 
   /**
    * User with access to Restricted HTML text format, dangerous tags allowed
@@ -66,14 +66,14 @@ class EditorSecurityTest extends WebTestBase {
    *
    * @var \Drupal\user\UserInterface
    */
-  protected $trusted_user;
+  protected $trustedUser;
 
   /**
    * User with access to all text formats and text editors.
    *
    * @var \Drupal\user\UserInterface
    */
-  protected $privileged_user;
+  protected $privilegedUser;
 
   protected function setUp() {
     parent::setUp();
@@ -176,22 +176,22 @@ protected function setUp() {
     //   - "privileged": restricted_without_editor, restricted_with_editor,
     //     restricted_plus_dangerous_tag_with_editor,
     //     unrestricted_without_editor and unrestricted_with_editor
-    $this->untrusted_user = $this->drupalCreateUser(array(
+    $this->untrustedUser = $this->drupalCreateUser(array(
       'create article content',
       'edit any article content',
       'use text format restricted_without_editor',
     ));
-    $this->normal_user = $this->drupalCreateUser(array(
+    $this->normalUser = $this->drupalCreateUser(array(
       'create article content',
       'edit any article content',
       'use text format restricted_with_editor',
     ));
-    $this->trusted_user = $this->drupalCreateUser(array(
+    $this->trustedUser = $this->drupalCreateUser(array(
       'create article content',
       'edit any article content',
       'use text format restricted_plus_dangerous_tag_with_editor',
     ));
-    $this->privileged_user = $this->drupalCreateUser(array(
+    $this->privilegedUser = $this->drupalCreateUser(array(
       'create article content',
       'edit any article content',
       'use text format restricted_without_editor',
@@ -204,11 +204,11 @@ protected function setUp() {
     // Create an "article" node for each possible text format, with the same
     // sample content, to do our tests on.
     $samples = array(
-      array('author' => $this->untrusted_user->id(), 'format' => 'restricted_without_editor'),
-      array('author' => $this->normal_user->id(), 'format' => 'restricted_with_editor'),
-      array('author' => $this->trusted_user->id(), 'format' => 'restricted_plus_dangerous_tag_with_editor'),
-      array('author' => $this->privileged_user->id(), 'format' => 'unrestricted_without_editor'),
-      array('author' => $this->privileged_user->id(), 'format' => 'unrestricted_with_editor'),
+      array('author' => $this->untrustedUser->id(), 'format' => 'restricted_without_editor'),
+      array('author' => $this->normalUser->id(), 'format' => 'restricted_with_editor'),
+      array('author' => $this->trustedUser->id(), 'format' => 'restricted_plus_dangerous_tag_with_editor'),
+      array('author' => $this->privilegedUser->id(), 'format' => 'unrestricted_without_editor'),
+      array('author' => $this->privilegedUser->id(), 'format' => 'unrestricted_with_editor'),
     );
     foreach ($samples as $sample) {
       $this->drupalCreateNode(array(
@@ -234,8 +234,8 @@ function testInitialSecurity() {
         // No text editor => no XSS filtering.
         'value' => self::$sampleContent,
         'users' => array(
-          $this->untrusted_user,
-          $this->privileged_user,
+          $this->untrustedUser,
+          $this->privilegedUser,
         ),
       ),
       array(
@@ -244,8 +244,8 @@ function testInitialSecurity() {
         // Text editor => XSS filtering.
         'value' => self::$sampleContentSecured,
         'users' => array(
-          $this->normal_user,
-          $this->privileged_user,
+          $this->normalUser,
+          $this->privilegedUser,
         ),
       ),
       array(
@@ -254,8 +254,8 @@ function testInitialSecurity() {
         // Text editor => XSS filtering.
         'value' => self::$sampleContentSecuredEmbedAllowed,
         'users' => array(
-          $this->trusted_user,
-          $this->privileged_user,
+          $this->trustedUser,
+          $this->privilegedUser,
         ),
       ),
       array(
@@ -264,7 +264,7 @@ function testInitialSecurity() {
         // No text editor => no XSS filtering.
         'value' => self::$sampleContent,
         'users' => array(
-          $this->privileged_user,
+          $this->privilegedUser,
         ),
       ),
       array(
@@ -273,7 +273,7 @@ function testInitialSecurity() {
         // Text editor, no security filter => no XSS filtering.
         'value' => self::$sampleContent,
         'users' => array(
-          $this->privileged_user,
+          $this->privilegedUser,
         ),
       ),
     );
@@ -389,7 +389,7 @@ function testSwitchingSecurity() {
     //  - switch to every other text format/editor
     //  - assert the XSS-filtered values that we get from the server
     $value_original_attribute = String::checkPlain(self::$sampleContent);
-    $this->drupalLogin($this->privileged_user);
+    $this->drupalLogin($this->privilegedUser);
     foreach ($expected as $case) {
       $this->drupalGet('node/' . $case['node_id'] . '/edit');
 
@@ -422,7 +422,7 @@ function testSwitchingSecurity() {
    */
   function testEditorXssFilterOverride() {
     // First: the Standard text editor XSS filter.
-    $this->drupalLogin($this->normal_user);
+    $this->drupalLogin($this->normalUser);
     $this->drupalGet('node/2/edit');
     $dom_node = $this->xpath('//textarea[@id="edit-body-0-value"]');
     $this->assertIdentical(self::$sampleContentSecured, (string) $dom_node[0], 'The value was filtered by the Standard text editor XSS filter.');
diff --git a/core/modules/editor/src/Tests/QuickEditIntegrationLoadingTest.php b/core/modules/editor/src/Tests/QuickEditIntegrationLoadingTest.php
index cce6e04c6bf2c0fd56eafe27297cfe0dbc86fb53..c4b81eadcdf47b91e374a8b6883bfd71323cb37a 100644
--- a/core/modules/editor/src/Tests/QuickEditIntegrationLoadingTest.php
+++ b/core/modules/editor/src/Tests/QuickEditIntegrationLoadingTest.php
@@ -29,7 +29,7 @@ class QuickEditIntegrationLoadingTest extends WebTestBase {
    *
    * @var array
    */
-  protected static $basic_permissions = array('access content', 'create article content', 'use text format filtered_html', 'access contextual links');
+  protected static $basicPermissions = array('access content', 'create article content', 'use text format filtered_html', 'access contextual links');
 
   protected function setUp() {
     parent::setUp();
@@ -74,9 +74,9 @@ public function testUsersWithoutPermission() {
     // - the 'access in-place editing' permission
     // - the 'edit any article content' permission (necessary to edit node 1)
     $users = array(
-      $this->drupalCreateUser(static::$basic_permissions),
-      $this->drupalCreateUser(array_merge(static::$basic_permissions, array('edit any article content'))),
-      $this->drupalCreateUser(array_merge(static::$basic_permissions, array('access in-place editing')))
+      $this->drupalCreateUser(static::$basicPermissions),
+      $this->drupalCreateUser(array_merge(static::$basicPermissions, array('edit any article content'))),
+      $this->drupalCreateUser(array_merge(static::$basicPermissions, array('access in-place editing')))
     );
 
     // Now test with each of the 3 users with insufficient permissions.
@@ -98,7 +98,7 @@ public function testUsersWithoutPermission() {
    * Test loading of untransformed text when a user does have access to it.
    */
   public function testUserWithPermission() {
-    $user = $this->drupalCreateUser(array_merge(static::$basic_permissions, array('edit any article content', 'access in-place editing')));
+    $user = $this->drupalCreateUser(array_merge(static::$basicPermissions, array('edit any article content', 'access in-place editing')));
     $this->drupalLogin($user);
     $this->drupalGet('node/1');
 
diff --git a/core/modules/editor/src/Tests/QuickEditIntegrationTest.php b/core/modules/editor/src/Tests/QuickEditIntegrationTest.php
index ee43da06668ff7c926176b64aaacf4e105aaa0d0..28b0f4b6a684828917a94d34d6de9096844faf59 100644
--- a/core/modules/editor/src/Tests/QuickEditIntegrationTest.php
+++ b/core/modules/editor/src/Tests/QuickEditIntegrationTest.php
@@ -62,7 +62,7 @@ class QuickEditIntegrationTest extends QuickEditTestBase {
    *
    * @var string
    */
-  protected $field_name;
+  protected $fieldName;
 
   protected function setUp() {
     parent::setUp();
@@ -71,9 +71,9 @@ protected function setUp() {
     $this->installSchema('system', 'url_alias');
 
     // Create a field.
-    $this->field_name = 'field_textarea';
+    $this->fieldName = 'field_textarea';
     $this->createFieldWithStorage(
-      $this->field_name, 'text', 1, 'Long text field',
+      $this->fieldName, 'text', 1, 'Long text field',
       // Instance settings.
       array(),
       // Widget type & settings.
@@ -132,22 +132,22 @@ public function testEditorSelection() {
 
     // Create an entity with values for this text field.
     $entity = entity_create('entity_test');
-    $entity->{$this->field_name}->value = 'Hello, world!';
-    $entity->{$this->field_name}->format = 'filtered_html';
+    $entity->{$this->fieldName}->value = 'Hello, world!';
+    $entity->{$this->fieldName}->format = 'filtered_html';
     $entity->save();
 
     // Editor selection w/ cardinality 1, text format w/o associated text editor.
-    $this->assertEqual('form', $this->getSelectedEditor($entity->id(), $this->field_name), "With cardinality 1, and the filtered_html text format, the 'form' editor is selected.");
+    $this->assertEqual('form', $this->getSelectedEditor($entity->id(), $this->fieldName), "With cardinality 1, and the filtered_html text format, the 'form' editor is selected.");
 
     // Editor selection w/ cardinality 1, text format w/ associated text editor.
-    $entity->{$this->field_name}->format = 'full_html';
+    $entity->{$this->fieldName}->format = 'full_html';
     $entity->save();
-    $this->assertEqual('editor', $this->getSelectedEditor($entity->id(), $this->field_name), "With cardinality 1, and the full_html text format, the 'editor' editor is selected.");
+    $this->assertEqual('editor', $this->getSelectedEditor($entity->id(), $this->fieldName), "With cardinality 1, and the full_html text format, the 'editor' editor is selected.");
 
     // Editor selection with text processing, cardinality >1
     $this->fields->field_textarea_field_storage->cardinality = 2;
     $this->fields->field_textarea_field_storage->save();
-    $this->assertEqual('form', $this->getSelectedEditor($entity->id(), $this->field_name), "With cardinality >1, and both items using the full_html text format, the 'form' editor is selected.");
+    $this->assertEqual('form', $this->getSelectedEditor($entity->id(), $this->fieldName), "With cardinality >1, and both items using the full_html text format, the 'form' editor is selected.");
   }
 
   /**
@@ -161,13 +161,13 @@ public function testMetadata() {
 
     // Create an entity with values for the field.
     $entity = entity_create('entity_test');
-    $entity->{$this->field_name}->value = 'Test';
-    $entity->{$this->field_name}->format = 'full_html';
+    $entity->{$this->fieldName}->value = 'Test';
+    $entity->{$this->fieldName}->format = 'full_html';
     $entity->save();
     $entity = entity_load('entity_test', $entity->id());
 
     // Verify metadata.
-    $items = $entity->getTranslation(LanguageInterface::LANGCODE_NOT_SPECIFIED)->get($this->field_name);
+    $items = $entity->getTranslation(LanguageInterface::LANGCODE_NOT_SPECIFIED)->get($this->fieldName);
     $metadata = $this->metadataGenerator->generateFieldMetadata($items, 'default');
     $expected = array(
       'access' => TRUE,
@@ -199,15 +199,15 @@ public function testAttachments() {
   public function testGetUntransformedTextCommand() {
     // Create an entity with values for the field.
     $entity = entity_create('entity_test');
-    $entity->{$this->field_name}->value = 'Test';
-    $entity->{$this->field_name}->format = 'full_html';
+    $entity->{$this->fieldName}->value = 'Test';
+    $entity->{$this->fieldName}->format = 'full_html';
     $entity->save();
     $entity = entity_load('entity_test', $entity->id());
 
     // Verify AJAX response.
     $controller = new EditorController();
     $request = new Request();
-    $response = $controller->getUntransformedText($entity, $this->field_name, LanguageInterface::LANGCODE_NOT_SPECIFIED, 'default');
+    $response = $controller->getUntransformedText($entity, $this->fieldName, LanguageInterface::LANGCODE_NOT_SPECIFIED, 'default');
     $expected = array(
       array(
         'command' => 'editorGetUntransformedText',