.../media/tests/src/Kernel/DrupalMediaTest.php     | 55 ----------------------
 1 file changed, 55 deletions(-)

diff --git a/core/modules/media/tests/src/Kernel/DrupalMediaTest.php b/core/modules/media/tests/src/Kernel/DrupalMediaTest.php
deleted file mode 100644
index 0c58cc9154..0000000000
--- a/core/modules/media/tests/src/Kernel/DrupalMediaTest.php
+++ /dev/null
@@ -1,55 +0,0 @@
-<?php
-
-namespace Drupal\Tests\media\Kernel;
-
-use Drupal\editor\Entity\Editor;
-use Drupal\KernelTests\KernelTestBase;
-
-/**
- * @coversDefaultClass \Drupal\media\Plugin\CKEditorPlugin\DrupalMedia
- *
- * @group media
- */
-class DrupalMediaTest extends KernelTestBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  protected static $modules = [
-    'system',
-    'media',
-    'ckeditor',
-    'filter',
-    'editor',
-  ];
-
-  /**
-   * @covers ::getCssFiles
-   */
-  public function testGetCssFiles() {
-    /** @var \Drupal\media\Plugin\CKEditorPlugin\DrupalMedia $plugin */
-    $plugin = $this->container->get('plugin.manager.ckeditor.plugin')
-      ->createInstance('drupalmedia');
-
-    $editor = $this->prophesize(Editor::class)->reveal();
-
-    $css_files = $plugin->getCssFiles($editor);
-    $this->assertContains('core/modules/media/css/plugins/drupalmedia/ckeditor.drupalmedia.css', $css_files);
-    $this->assertContains('core/modules/system/css/components/hidden.module.css', $css_files);
-
-    // Make Stable the active theme, which should override hidden.module.css.
-    $this->container->get('theme_installer')->install(['stable']);
-    /** @var \Drupal\Core\Theme\ThemeInitializationInterface $theme_initializer */
-    $theme_initializer = $this->container->get('theme.initialization');
-    /** @var \Drupal\Core\Theme\ThemeManagerInterface $theme_manager */
-    $theme_manager = $this->container->get('theme.manager');
-    $theme_manager->setActiveTheme($theme_initializer->getActiveThemeByName('stable'));
-    $this->container->get('library.discovery')->clearCachedDefinitions();
-    $this->verbose('Made stable the active theme.');
-
-    $css_files = $plugin->getCssFiles($editor);
-    $this->assertContains('core/modules/media/css/plugins/drupalmedia/ckeditor.drupalmedia.css', $css_files);
-    $this->assertContains('core/themes/stable/css/system/components/hidden.module.css', $css_files);
-  }
-
-}