diff --git a/entity_clone.links.task.yml b/entity_clone.links.task.yml
index dbb40ee..162ebb3 100644
--- a/entity_clone.links.task.yml
+++ b/entity_clone.links.task.yml
@@ -1,3 +1,3 @@
 entity_clone.clone:
   deriver: 'Drupal\entity_clone\Plugin\Derivative\DynamicLocalTasks'
-  weight: 100
\ No newline at end of file
+  weight: 100
diff --git a/entity_clone.module b/entity_clone.module
index 81faab0..4a7e38c 100644
--- a/entity_clone.module
+++ b/entity_clone.module
@@ -9,6 +9,13 @@ use Drupal\Core\Entity\ContentEntityTypeInterface;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Config\Entity\ConfigEntityTypeInterface;
+use Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneBase;
+use Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase;
+use Drupal\entity_clone\EntityClone\Config\ConfigWithFieldEntityClone;
+use Drupal\entity_clone\EntityClone\Config\FieldConfigEntityClone;
+use Drupal\entity_clone\EntityClone\Content\ContentEntityCloneBase;
+use Drupal\entity_clone\EntityClone\Content\FileEntityClone;
+use Drupal\entity_clone\EntityClone\Content\UserEntityClone;
 
 /**
  * Implements hook_help().
@@ -34,30 +41,30 @@ function entity_clone_help($route_name, RouteMatchInterface $route_match) {
 function entity_clone_entity_type_build(array &$entity_types) {
   $specific_handler = [
     'file' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Content\FileEntityClone',
+      'entity_clone' => FileEntityClone::class,
     ],
     'user' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Content\UserEntityClone',
+      'entity_clone' => UserEntityClone::class,
     ],
     'field_config' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Config\FieldConfigEntityClone',
-      'entity_clone_form' => '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase',
+      'entity_clone' => FieldConfigEntityClone::class,
+      'entity_clone_form' => ConfigEntityCloneFormBase::class,
     ],
     'node_type' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Config\ConfigWithFieldEntityClone',
-      'entity_clone_form' => '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase',
+      'entity_clone' => ConfigWithFieldEntityClone::class,
+      'entity_clone_form' => ConfigEntityCloneFormBase::class,
     ],
     'comment_type' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Config\ConfigWithFieldEntityClone',
-      'entity_clone_form' => '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase',
+      'entity_clone' => ConfigWithFieldEntityClone::class,
+      'entity_clone_form' => ConfigEntityCloneFormBase::class,
     ],
     'block_content_type' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Config\ConfigWithFieldEntityClone',
-      'entity_clone_form' => '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase',
+      'entity_clone' => ConfigWithFieldEntityClone::class,
+      'entity_clone_form' => ConfigEntityCloneFormBase::class,
     ],
     'contact_form' => [
-      'entity_clone' => '\Drupal\entity_clone\EntityClone\Config\ConfigWithFieldEntityClone',
-      'entity_clone_form' => '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase',
+      'entity_clone' => ConfigWithFieldEntityClone::class,
+      'entity_clone_form' => ConfigEntityCloneFormBase::class,
     ],
   ];
 
@@ -70,11 +77,11 @@ function entity_clone_entity_type_build(array &$entity_types) {
       }
     }
     elseif (!$entity_type->getHandlerClass('entity_clone') && $entity_type instanceof ContentEntityTypeInterface) {
-      $entity_type->setHandlerClass('entity_clone', '\Drupal\entity_clone\EntityClone\Content\ContentEntityCloneBase');
+      $entity_type->setHandlerClass('entity_clone', ContentEntityCloneBase::class);
     }
     elseif (!$entity_type->getHandlerClass('entity_clone') && $entity_type instanceof ConfigEntityTypeInterface) {
-      $entity_type->setHandlerClass('entity_clone', '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneBase');
-      $entity_type->setHandlerClass('entity_clone_form', '\Drupal\entity_clone\EntityClone\Config\ConfigEntityCloneFormBase');
+      $entity_type->setHandlerClass('entity_clone', ConfigEntityCloneBase::class);
+      $entity_type->setHandlerClass('entity_clone_form', ConfigEntityCloneFormBase::class);
     }
   }
 }
diff --git a/src/EntityClone/Config/ConfigEntityCloneFormBase.php b/src/EntityClone/Config/ConfigEntityCloneFormBase.php
index d40ddd5..b296665 100644
--- a/src/EntityClone/Config/ConfigEntityCloneFormBase.php
+++ b/src/EntityClone/Config/ConfigEntityCloneFormBase.php
@@ -60,20 +60,20 @@ class ConfigEntityCloneFormBase implements EntityHandlerInterface, EntityCloneFo
     $form = [];
 
     if ($this->entityTypeManager->getDefinition($entity->getEntityTypeId())->getKey('label')) {
-      $form['label'] = array(
+      $form['label'] = [
         '#type' => 'textfield',
         '#title' => $this->translationManager->translate('New Label'),
         '#maxlength' => 255,
         '#required' => TRUE,
-      );
+      ];
     }
 
-    $form['id'] = array(
+    $form['id'] = [
       '#type' => 'machine_name',
       '#title' => $this->translationManager->translate('New Id'),
       '#maxlength' => 255,
       '#required' => TRUE,
-    );
+    ];
 
     // If entity must have a prefix
     // (e.g. entity_form_mode, entity_view_mode, ...).
diff --git a/src/EntityClone/Config/ConfigWithFieldEntityClone.php b/src/EntityClone/Config/ConfigWithFieldEntityClone.php
index 6b66e9a..d652db8 100644
--- a/src/EntityClone/Config/ConfigWithFieldEntityClone.php
+++ b/src/EntityClone/Config/ConfigWithFieldEntityClone.php
@@ -40,16 +40,16 @@ class ConfigWithFieldEntityClone extends ConfigEntityCloneBase {
    *
    * @param string $entity_id
    *   The base entity ID.
-   * @param $cloned_entity_id
+   * @param string $cloned_entity_id
    *   The cloned entity ID.
-   * @param $bundle_of
+   * @param string $bundle_of
    *   The bundle of the cloned entity.
    */
   protected function cloneFields($entity_id, $cloned_entity_id, $bundle_of) {
     /** @var \Drupal\Core\Entity\EntityFieldManager $field_manager */
     $field_manager = \Drupal::service('entity_field.manager');
     $fields = $field_manager->getFieldDefinitions($bundle_of, $entity_id);
-    foreach ($fields as $field_id => $field_definition) {
+    foreach ($fields as $field_definition) {
       if ($field_definition instanceof FieldConfigInterface) {
         if ($this->entityTypeManager->hasHandler($this->entityTypeManager->getDefinition($field_definition->getEntityTypeId())
           ->id(), 'entity_clone')
@@ -77,14 +77,14 @@ class ConfigWithFieldEntityClone extends ConfigEntityCloneBase {
    *   The type of display (view or form).
    * @param string $entity_id
    *   The base entity ID.
-   * @param $cloned_entity_id
+   * @param string $cloned_entity_id
    *   The cloned entity ID.
    * @param array $view_displays
    *   All view available display for this type.
-   * @param $bundle_of
+   * @param string $bundle_of
    *   The bundle of the cloned entity.
    */
-  protected function cloneDisplays($type, $entity_id, $cloned_entity_id, $view_displays, $bundle_of) {
+  protected function cloneDisplays($type, $entity_id, $cloned_entity_id, array $view_displays, $bundle_of) {
     foreach ($view_displays as $view_display_id => $view_display) {
       /** @var \Drupal\Core\Entity\Display\EntityDisplayInterface $display */
       $display = $this->entityTypeManager->getStorage('entity_' . $type . '_display')->load($bundle_of . '.' . $entity_id . '.' . $view_display_id);
diff --git a/src/EntityClone/EntityCloneInterface.php b/src/EntityClone/EntityCloneInterface.php
index c8e0949..ed02023 100644
--- a/src/EntityClone/EntityCloneInterface.php
+++ b/src/EntityClone/EntityCloneInterface.php
@@ -19,9 +19,9 @@ interface EntityCloneInterface {
    * @param array $properties
    *   All new properties to replace old.
    *
-   * @return \Drupal\Core\Entity\EntityInterface The new saved entity.
-   * The new saved entity.
+   * @return \Drupal\Core\Entity\EntityInterface
+   *   The new saved entity.
    */
-  public function cloneEntity(EntityInterface $entity, EntityInterface $cloned_entity, $properties = []);
+  public function cloneEntity(EntityInterface $entity, EntityInterface $cloned_entity, array $properties = []);
 
 }
diff --git a/src/EntityClonePermissions.php b/src/EntityClonePermissions.php
index 3057d57..1a74df4 100644
--- a/src/EntityClonePermissions.php
+++ b/src/EntityClonePermissions.php
@@ -26,7 +26,6 @@ class EntityClonePermissions implements ContainerInjectionInterface {
    */
   protected $translationManager;
 
-
   /**
    * Constructs a new EntityClonePermissions instance.
    *
diff --git a/src/Plugin/Derivative/DynamicLocalTasks.php b/src/Plugin/Derivative/DynamicLocalTasks.php
index 44e1689..5dd716b 100644
--- a/src/Plugin/Derivative/DynamicLocalTasks.php
+++ b/src/Plugin/Derivative/DynamicLocalTasks.php
@@ -62,12 +62,12 @@ class DynamicLocalTasks extends DeriverBase implements ContainerDeriverInterface
       $has_canonical_path = $entity_type->hasLinkTemplate('canonical');
 
       if ($has_clone_path) {
-        $this->derivatives["$entity_type_id.clone_tab"] = array(
+        $this->derivatives["$entity_type_id.clone_tab"] = [
           'route_name' => "entity.$entity_type_id.clone_form",
           'title' => $this->translationManager->translate('Clone'),
           'base_route' => "entity.$entity_type_id." . ($has_canonical_path ? "canonical" : "edit_form"),
           'weight' => 100,
-        );
+        ];
       }
     }
 
diff --git a/src/Tests/EntityCloneActionTest.php b/src/Tests/EntityCloneActionTest.php
index 5c97890..f530531 100644
--- a/src/Tests/EntityCloneActionTest.php
+++ b/src/Tests/EntityCloneActionTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneActionTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\Component\Utility\Crypt;
@@ -31,11 +26,13 @@ class EntityCloneActionTest extends WebTestBase {
    */
   protected $permissions = [
     'administer actions',
-    'clone action entity'
+    'clone action entity',
   ];
 
   /**
-   * An administrative user with permission to configure actions settings.
+   * An administrative user.
+   *
+   * With permission to configure actions settings.
    *
    * @var \Drupal\user\UserInterface
    */
@@ -51,6 +48,9 @@ class EntityCloneActionTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone an action entity.
+   */
   public function testActionEntityClone() {
     foreach (\Drupal::service('plugin.manager.action')->getDefinitions() as $id => $definition) {
       if (is_subclass_of($definition['class'], '\Drupal\Core\Plugin\PluginFormInterface') && $definition['label'] == 'Send email') {
@@ -91,4 +91,3 @@ class EntityCloneActionTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneBlockTest.php b/src/Tests/EntityCloneBlockTest.php
index 07295d5..9095002 100644
--- a/src/Tests/EntityCloneBlockTest.php
+++ b/src/Tests/EntityCloneBlockTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneBlockTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\block\Entity\Block;
@@ -31,7 +26,7 @@ class EntityCloneBlockTest extends WebTestBase {
    */
   protected $permissions = [
     'administer blocks',
-    'clone block entity'
+    'clone block entity',
   ];
 
   /**
@@ -51,6 +46,9 @@ class EntityCloneBlockTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a block entity.
+   */
   public function testBlockEntityClone() {
     $config = \Drupal::configFactory();
     $block = Block::create([
@@ -79,4 +77,3 @@ class EntityCloneBlockTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneCommentTest.php b/src/Tests/EntityCloneCommentTest.php
index 33ce635..f7c5995 100644
--- a/src/Tests/EntityCloneCommentTest.php
+++ b/src/Tests/EntityCloneCommentTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneCommentTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\comment\Tests\CommentTestBase;
@@ -24,7 +19,15 @@ class EntityCloneCommentTest extends CommentTestBase {
    *
    * @var array
    */
-  public static $modules = ['entity_clone', 'block', 'comment', 'node', 'history', 'field_ui', 'datetime'];
+  public static $modules = [
+    'entity_clone',
+    'block',
+    'comment',
+    'node',
+    'history',
+    'field_ui',
+    'datetime',
+  ];
 
   /**
    * Permissions to grant admin user.
@@ -42,7 +45,7 @@ class EntityCloneCommentTest extends CommentTestBase {
     'access comments',
     'access user profiles',
     'access content',
-    'clone comment entity'
+    'clone comment entity',
   ];
 
   /**
@@ -55,6 +58,9 @@ class EntityCloneCommentTest extends CommentTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a comment entity.
+   */
   public function testCommentEntityClone() {
     $subject = 'Test comment for clone';
     $body = $this->randomMachineName();
@@ -72,4 +78,4 @@ class EntityCloneCommentTest extends CommentTestBase {
     $this->assertTrue($comments, 'Test comment cloned found in database.');
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/Tests/EntityCloneContentTest.php b/src/Tests/EntityCloneContentTest.php
index 0e751fe..93982d4 100644
--- a/src/Tests/EntityCloneContentTest.php
+++ b/src/Tests/EntityCloneContentTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneContentTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\node\Entity\Node;
@@ -32,7 +27,7 @@ class EntityCloneContentTest extends NodeTestBase {
   protected $permissions = [
     'bypass node access',
     'administer nodes',
-    'clone node entity'
+    'clone node entity',
   ];
 
   /**
@@ -52,6 +47,9 @@ class EntityCloneContentTest extends NodeTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a content entity.
+   */
   public function testContentEntityClone() {
     $node_title = $this->randomMachineName(8);
     $node = Node::create([
@@ -71,4 +69,4 @@ class EntityCloneContentTest extends NodeTestBase {
     $this->assertTrue($node, 'Test node cloned found in database.');
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/Tests/EntityCloneCustomBlockTest.php b/src/Tests/EntityCloneCustomBlockTest.php
index 6da9265..4b9c8f1 100644
--- a/src/Tests/EntityCloneCustomBlockTest.php
+++ b/src/Tests/EntityCloneCustomBlockTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneCustomBlockTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\block_content\Tests\BlockContentTestBase;
@@ -41,9 +36,11 @@ class EntityCloneCustomBlockTest extends BlockContentTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a custom block entity.
+   */
   public function testCustomBlockEntityClone() {
-
-    $edit = array();
+    $edit = [];
     $edit['info[0][value]'] = 'Test block ready to clone';
     $edit['body[0][value]'] = $this->randomMachineName(16);
     $this->drupalPostForm('block/add/basic', $edit, t('Save'));
@@ -68,4 +65,4 @@ class EntityCloneCustomBlockTest extends BlockContentTestBase {
     $this->assertTrue($block, 'Test Block cloned found in database.');
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/Tests/EntityCloneDateFormatTest.php b/src/Tests/EntityCloneDateFormatTest.php
index 40a7442..519a267 100644
--- a/src/Tests/EntityCloneDateFormatTest.php
+++ b/src/Tests/EntityCloneDateFormatTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneDateFormatTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneDateFormatTest extends WebTestBase {
    */
   protected $permissions = [
     'clone date_format entity',
-    'administer site configuration'
+    'administer site configuration',
   ];
 
   /**
@@ -50,6 +45,9 @@ class EntityCloneDateFormatTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a date format entity.
+   */
   public function testDateFormatEntityClone() {
     $edit = [
       'label' => 'Test date format for clone',
@@ -81,4 +79,3 @@ class EntityCloneDateFormatTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneEntityFormModeTest.php b/src/Tests/EntityCloneEntityFormModeTest.php
index 68235fe..c0e6549 100644
--- a/src/Tests/EntityCloneEntityFormModeTest.php
+++ b/src/Tests/EntityCloneEntityFormModeTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneEntityFormModeTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -29,11 +24,13 @@ class EntityCloneEntityFormModeTest extends WebTestBase {
    * @var array
    */
   protected $permissions = [
-    'clone entity_form_mode entity'
+    'clone entity_form_mode entity',
   ];
 
   /**
-   * An administrative user with permission to configure entity form modes settings.
+   * An administrative user.
+   *
+   * With permission to configure entity form modes settings.
    *
    * @var \Drupal\user\UserInterface
    */
@@ -49,6 +46,9 @@ class EntityCloneEntityFormModeTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a form mode entity.
+   */
   public function testEntityFormModeEntityClone() {
     $entity_form_modes = \Drupal::entityTypeManager()
       ->getStorage('entity_form_mode')
@@ -73,4 +73,3 @@ class EntityCloneEntityFormModeTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneEntityViewModeTest.php b/src/Tests/EntityCloneEntityViewModeTest.php
index 7876807..0cb4f88 100644
--- a/src/Tests/EntityCloneEntityViewModeTest.php
+++ b/src/Tests/EntityCloneEntityViewModeTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneEntityViewModeTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -29,11 +24,13 @@ class EntityCloneEntityViewModeTest extends WebTestBase {
    * @var array
    */
   protected $permissions = [
-    'clone entity_view_mode entity'
+    'clone entity_view_mode entity',
   ];
 
   /**
-   * An administrative user with permission to configure entity view modes settings.
+   * An administrative user.
+   *
+   * With permission to configure entity view modes settings.
    *
    * @var \Drupal\user\UserInterface
    */
@@ -49,6 +46,9 @@ class EntityCloneEntityViewModeTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a view mode entity.
+   */
   public function testEntityViewModeEntityClone() {
     $entity_view_modes = \Drupal::entityTypeManager()
       ->getStorage('entity_view_mode')
@@ -73,4 +73,3 @@ class EntityCloneEntityViewModeTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneFileTest.php b/src/Tests/EntityCloneFileTest.php
index d477aa0..23c241b 100644
--- a/src/Tests/EntityCloneFileTest.php
+++ b/src/Tests/EntityCloneFileTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneFileTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\file\Entity\File;
@@ -30,7 +25,7 @@ class EntityCloneFileTest extends WebTestBase {
    * @var array
    */
   protected $permissions = [
-    'clone file entity'
+    'clone file entity',
   ];
 
   /**
@@ -50,15 +45,18 @@ class EntityCloneFileTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a file entity.
+   */
   public function testFileEntityClone() {
     /** @var \Drupal\file\FileInterface $file */
-    $file = File::create(array(
+    $file = File::create([
       'uid' => 1,
       'filename' => 'druplicon.txt',
       'uri' => 'public://druplicon.txt',
       'filemime' => 'text/plain',
       'status' => FILE_STATUS_PERMANENT,
-    ));
+    ]);
     file_put_contents($file->getFileUri(), 'hello world');
     $file->save();
 
@@ -76,4 +74,3 @@ class EntityCloneFileTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneFilterFormatTest.php b/src/Tests/EntityCloneFilterFormatTest.php
index c458e23..680241a 100644
--- a/src/Tests/EntityCloneFilterFormatTest.php
+++ b/src/Tests/EntityCloneFilterFormatTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneFilterFormatTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,11 +25,13 @@ class EntityCloneFilterFormatTest extends WebTestBase {
    */
   protected $permissions = [
     'clone filter_format entity',
-    'administer filters'
+    'administer filters',
   ];
 
   /**
-   * An administrative user with permission to configure filter formats settings.
+   * An administrative user.
+   *
+   * With permission to configure filter formats settings.
    *
    * @var \Drupal\user\UserInterface
    */
@@ -50,6 +47,9 @@ class EntityCloneFilterFormatTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a filter format entity.
+   */
   public function testFilterFormatEntityClone() {
     $edit = [
       'name' => 'Test filter format for clone',
@@ -80,4 +80,3 @@ class EntityCloneFilterFormatTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneImageStyleTest.php b/src/Tests/EntityCloneImageStyleTest.php
index 648e227..1a00102 100644
--- a/src/Tests/EntityCloneImageStyleTest.php
+++ b/src/Tests/EntityCloneImageStyleTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneImageStyleTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneImageStyleTest extends WebTestBase {
    */
   protected $permissions = [
     'clone image_style entity',
-    'administer image styles'
+    'administer image styles',
   ];
 
   /**
@@ -50,6 +45,9 @@ class EntityCloneImageStyleTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone an image style entity.
+   */
   public function testImageStyleEntityClone() {
     $edit = [
       'label' => 'Test image style for clone',
@@ -80,4 +78,3 @@ class EntityCloneImageStyleTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneLanguageTest.php b/src/Tests/EntityCloneLanguageTest.php
index bffba19..5141f17 100644
--- a/src/Tests/EntityCloneLanguageTest.php
+++ b/src/Tests/EntityCloneLanguageTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneLanguageTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneLanguageTest extends WebTestBase {
    */
   protected $permissions = [
     'administer languages',
-    'clone configurable_language entity'
+    'clone configurable_language entity',
   ];
 
   /**
@@ -50,9 +45,12 @@ class EntityCloneLanguageTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a language entity.
+   */
   public function testLanguageEntityClone() {
     $edit = [
-      'predefined_langcode' => 'fr'
+      'predefined_langcode' => 'fr',
     ];
     $this->drupalPostForm("/admin/config/regional/language/add", $edit, t('Add language'));
 
@@ -79,4 +77,3 @@ class EntityCloneLanguageTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneMenuTest.php b/src/Tests/EntityCloneMenuTest.php
index 81c393d..667a7a6 100644
--- a/src/Tests/EntityCloneMenuTest.php
+++ b/src/Tests/EntityCloneMenuTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneMenuTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneMenuTest extends WebTestBase {
    */
   protected $permissions = [
     'clone menu entity',
-    'administer menu'
+    'administer menu',
   ];
 
   /**
@@ -50,8 +45,10 @@ class EntityCloneMenuTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a menu entity.
+   */
   public function testMenuEntityClone() {
-
     $menus = \Drupal::entityTypeManager()
       ->getStorage('menu')
       ->loadByProperties([
@@ -75,4 +72,3 @@ class EntityCloneMenuTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneResponsiveImageStyleTest.php b/src/Tests/EntityCloneResponsiveImageStyleTest.php
index d6385fa..dcb6de2 100644
--- a/src/Tests/EntityCloneResponsiveImageStyleTest.php
+++ b/src/Tests/EntityCloneResponsiveImageStyleTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneResponsiveImageStyleTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneResponsiveImageStyleTest extends WebTestBase {
    */
   protected $permissions = [
     'clone responsive_image_style entity',
-    'administer responsive images'
+    'administer responsive images',
   ];
 
   /**
@@ -50,6 +45,9 @@ class EntityCloneResponsiveImageStyleTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a responsive image style entity.
+   */
   public function testResponsiveImageStyleEntityClone() {
     $edit = [
       'label' => 'Test responsive image style for clone',
@@ -82,4 +80,3 @@ class EntityCloneResponsiveImageStyleTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneRoleTest.php b/src/Tests/EntityCloneRoleTest.php
index b551305..015c19a 100644
--- a/src/Tests/EntityCloneRoleTest.php
+++ b/src/Tests/EntityCloneRoleTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneRoleTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneRoleTest extends WebTestBase {
    */
   protected $permissions = [
     'administer permissions',
-    'clone user_role entity'
+    'clone user_role entity',
   ];
 
   /**
@@ -50,6 +45,9 @@ class EntityCloneRoleTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a role entity.
+   */
   public function testRoleEntityClone() {
     $edit = [
       'label' => 'Test role for clone',
@@ -80,4 +78,3 @@ class EntityCloneRoleTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneSearchPageTest.php b/src/Tests/EntityCloneSearchPageTest.php
index 24cee53..255cea2 100644
--- a/src/Tests/EntityCloneSearchPageTest.php
+++ b/src/Tests/EntityCloneSearchPageTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneSearchPageTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -30,7 +25,7 @@ class EntityCloneSearchPageTest extends WebTestBase {
    */
   protected $permissions = [
     'administer search',
-    'clone search_page entity'
+    'clone search_page entity',
   ];
 
   /**
@@ -50,6 +45,9 @@ class EntityCloneSearchPageTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a search page entity.
+   */
   public function testSearchPageEntityClone() {
     $edit = [
       'label' => 'Test search page for clone',
@@ -81,4 +79,3 @@ class EntityCloneSearchPageTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneShortcutSetTest.php b/src/Tests/EntityCloneShortcutSetTest.php
index 46c8c0e..82878b0 100644
--- a/src/Tests/EntityCloneShortcutSetTest.php
+++ b/src/Tests/EntityCloneShortcutSetTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneShortcutSetTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -29,7 +24,7 @@ class EntityCloneShortcutSetTest extends WebTestBase {
    * @var array
    */
   protected $permissions = [
-    'clone shortcut_set entity'
+    'clone shortcut_set entity',
   ];
 
   /**
@@ -49,6 +44,9 @@ class EntityCloneShortcutSetTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a shortcut entity.
+   */
   public function testShortcutSetEntityClone() {
     $edit = [
       'id' => 'test_shortcut_set_cloned',
@@ -66,4 +64,3 @@ class EntityCloneShortcutSetTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneUserTest.php b/src/Tests/EntityCloneUserTest.php
index 1de2d15..77c16e9 100644
--- a/src/Tests/EntityCloneUserTest.php
+++ b/src/Tests/EntityCloneUserTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneUserTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -29,7 +24,7 @@ class EntityCloneUserTest extends WebTestBase {
    * @var array
    */
   protected $permissions = [
-    'clone user entity'
+    'clone user entity',
   ];
 
   /**
@@ -49,6 +44,9 @@ class EntityCloneUserTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a user entity.
+   */
   public function testUserEntityClone() {
     $this->drupalPostForm('entity_clone/user/' . $this->adminUser->id(), [], t('Clone'));
 
@@ -62,4 +60,3 @@ class EntityCloneUserTest extends WebTestBase {
   }
 
 }
-
diff --git a/src/Tests/EntityCloneViewTest.php b/src/Tests/EntityCloneViewTest.php
index 900ad05..bf8f933 100644
--- a/src/Tests/EntityCloneViewTest.php
+++ b/src/Tests/EntityCloneViewTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Definition of Drupal\entity_clone\Tests\EntityCloneViewTest.
- */
-
 namespace Drupal\entity_clone\Tests;
 
 use Drupal\simpletest\WebTestBase;
@@ -29,7 +24,7 @@ class EntityCloneViewTest extends WebTestBase {
    * @var array
    */
   protected $permissions = [
-    'clone view entity'
+    'clone view entity',
   ];
 
   /**
@@ -49,6 +44,9 @@ class EntityCloneViewTest extends WebTestBase {
     $this->drupalLogin($this->adminUser);
   }
 
+  /**
+   * Test clone a view entity.
+   */
   public function testViewEntityClone() {
     $edit = [
       'id' => 'test_view_cloned',
@@ -66,4 +64,3 @@ class EntityCloneViewTest extends WebTestBase {
   }
 
 }
-