diff --git a/tests/src/Functional/MenuMultilingualMenuBlockTest.php b/tests/src/Functional/MenuMultilingualMenuBlockTest.php
index 510844b..e728675 100644
--- a/tests/src/Functional/MenuMultilingualMenuBlockTest.php
+++ b/tests/src/Functional/MenuMultilingualMenuBlockTest.php
@@ -19,7 +19,7 @@ class MenuMultilingualMenuBlockTest extends MenuMultilingualTest {
   /**
    * {@inheritdoc}
    */
-  public $menu_block_config_path = 'admin/structure/block/manage/mainnavigation';
+  public $menuBlockConfigPath = 'admin/structure/block/manage/mainnavigation';
 
   /**
    * {@inheritdoc}
@@ -62,7 +62,7 @@ class MenuMultilingualMenuBlockTest extends MenuMultilingualTest {
    */
   public function testMenuMultilingualFormDisplay() {
     parent::testMenuMultilingualFormDisplay();
-    // Check if menu_block form fields are displayed
+    // Check if menu_block form fields are displayed.
     $this->assertSession()->pageTextContains("Advanced options");
     $this->assertSession()->pageTextContains("HTML and style options");
   }
diff --git a/tests/src/Functional/MenuMultilingualTest.php b/tests/src/Functional/MenuMultilingualTest.php
index 5f02426..cf3e70d 100644
--- a/tests/src/Functional/MenuMultilingualTest.php
+++ b/tests/src/Functional/MenuMultilingualTest.php
@@ -19,7 +19,7 @@ class MenuMultilingualTest extends BrowserTestBase {
    *
    * @var string
    */
-  public $menu_block_config_path = 'admin/structure/block/manage/bartik_main_menu';
+  public $menuBlockConfigPath = 'admin/structure/block/manage/bartik_main_menu';
 
   /**
    * {@inheritdoc}
@@ -106,7 +106,7 @@ class MenuMultilingualTest extends BrowserTestBase {
    * Display Menu Multilingual form.
    */
   public function testMenuMultilingualFormDisplay() {
-    $this->drupalGet($this->menu_block_config_path);
+    $this->drupalGet($this->menuBlockConfigPath);
     $this->assertSession()->pageTextContains("Configure block");
     $this->assertSession()->pageTextContains("Hide menu items without translated label");
     $this->assertSession()->pageTextContains("Hide menu items without translated content");
@@ -141,7 +141,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 0,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, English menu item');
@@ -160,7 +160,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, English menu item');
@@ -178,7 +178,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 0,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, English menu item');
@@ -221,7 +221,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 0,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, English menu item');
@@ -240,7 +240,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, English menu item');
@@ -258,7 +258,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 0,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, English menu item');
@@ -301,7 +301,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 0,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, Language Not Applicable menu item');
@@ -320,7 +320,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, Language Not Applicable menu item');
@@ -338,7 +338,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 0,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, Language Not Applicable menu item');
@@ -381,7 +381,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 0,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextNotContains('Node 1 translated, Language Not Specified menu item');
@@ -400,7 +400,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextNotContains('Node 1 translated, Language Not Specified menu item');
@@ -418,7 +418,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 0,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Node 1 translated, Language Not Specified menu item');
@@ -452,7 +452,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 0,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Views English menu item');
@@ -465,7 +465,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Views English menu item');
@@ -477,7 +477,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 0,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Views English menu item');
@@ -506,7 +506,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 0,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Views English menu item');
@@ -519,7 +519,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 1,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, t('Save block'));
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, t('Save block'));
 
     $this->drupalGet('node');
     $session->pageTextContains('Views English menu item');
@@ -531,7 +531,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'settings[only_translated_labels]'  => 0,
       'settings[only_translated_content]' => 1,
     ];
-    $this->drupalPostForm($this->menu_block_config_path, $edit, 'Save block');
+    $this->drupalPostForm($this->menuBlockConfigPath, $edit, 'Save block');
 
     $this->drupalGet('node');
     $session->pageTextContains('Views English menu item');
@@ -602,7 +602,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'menu[parent]' => 'main:',
     ];
     $this->drupalPostForm('admin/structure/views/nojs/display/content/page_1/menu', $edit, 'Apply');
-    $this->drupalPostForm('admin/structure/views/view/content/edit/page_1', null, 'Save');
+    $this->drupalPostForm('admin/structure/views/view/content/edit/page_1', NULL, 'Save');
     $edit = [
       'translation[config_names][views.view.content][display][page_1][display_options][menu][title]' => 'Views French menu item',
     ];
@@ -619,7 +619,7 @@ class MenuMultilingualTest extends BrowserTestBase {
       'menu[parent]' => 'main:',
     ];
     $this->drupalPostForm('admin/structure/views/nojs/display/content/page_1/menu', $edit, 'Apply');
-    $this->drupalPostForm('admin/structure/views/view/content/edit/page_1', null, 'Save');
+    $this->drupalPostForm('admin/structure/views/view/content/edit/page_1', NULL, 'Save');
   }
 
 }