diff --git a/core/modules/responsive_image/src/Tests/Update/ResponsiveImageUpdateTest.php b/core/modules/responsive_image/src/Tests/Update/ResponsiveImageUpdateTest.php
index 044d2dd..9427d47 100644
--- a/core/modules/responsive_image/src/Tests/Update/ResponsiveImageUpdateTest.php
+++ b/core/modules/responsive_image/src/Tests/Update/ResponsiveImageUpdateTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\responsive_image\Tests\Update\ResponsiveImageUpdateTest.
- */
-
 namespace Drupal\responsive_image\Tests\Update;
 
 use Drupal\Component\Serialization\Yaml;
diff --git a/core/modules/responsive_image/tests/src/Kernel/ResponsiveImageIntegrationTest.php b/core/modules/responsive_image/tests/src/Kernel/ResponsiveImageIntegrationTest.php
index 1a219e5..d481291 100644
--- a/core/modules/responsive_image/tests/src/Kernel/ResponsiveImageIntegrationTest.php
+++ b/core/modules/responsive_image/tests/src/Kernel/ResponsiveImageIntegrationTest.php
@@ -1,10 +1,5 @@
 <?php
 
-/**
- * @file
- * Contains \Drupal\Tests\responsive_image\Kernel\ResponsiveImageIntegration.
- */
-
 namespace Drupal\Tests\responsive_image\Kernel;
 
 use Drupal\Core\Entity\Entity\EntityViewDisplay;
@@ -62,7 +57,7 @@ public function testEntityViewDisplayDependency() {
     // Check that the 'foo' field is on the display.
     $this->assertNotNull($display = EntityViewDisplay::load('entity_test.entity_test.default'));
     $this->assertTrue($display->getComponent('bar'));
-    $this->assertFalse(array_key_exists('bar', $display->get('hidden')));
+    $this->assertArrayNotHasKey('bar', $display->get('hidden'));
 
     // Delete the responsive image style.
     ResponsiveImageStyle::load('foo')->delete();
@@ -71,7 +66,7 @@ public function testEntityViewDisplayDependency() {
     $this->assertNotNull($display = EntityViewDisplay::load('entity_test.entity_test.default'));
     // Check that the 'foo' field was disabled.
     $this->assertNull($display->getComponent('bar'));
-    $this->assertTrue(array_key_exists('bar', $display->get('hidden')));
+    $this->assertArrayHasKey('bar', $display->get('hidden'));
   }
 
 }