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diff --git a/web/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php b/web/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php
new file mode 100644
index 000000000..8da814b9d
--- /dev/null
+++ b/web/core/modules/media/tests/src/Functional/MediaCacheTagsTest.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Drupal\Tests\media\Functional;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\media\Entity\Media;
+use Drupal\system\Tests\Entity\EntityWithUriCacheTagsTestBase;
+
+/**
+ * Tests the media entity's cache tags.
+ *
+ * @group media
+ */
+class MediaCacheTagsTest extends EntityWithUriCacheTagsTestBase {
+
+  use MediaFunctionalTestCreateMediaTypeTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'media',
+    'media_test_source',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function createEntity() {
+    // Create a media type.
+    $mediaType = $this->createMediaType();
+
+    // Create a media item.
+    $media = Media::create([
+      'bundle' => $mediaType->id(),
+      'name' => 'Unnamed',
+    ]);
+    $media->save();
+
+    return $media;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getAdditionalCacheContextsForEntity(EntityInterface $media) {
+    return ['timezone'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getAdditionalCacheTagsForEntity(EntityInterface $media) {
+    // Each media item must have an author and a thumbnail.
+    return [
+      'user:' . $media->getOwnerId(),
+      'config:image.style.thumbnail',
+      'file:' . $media->get('thumbnail')->entity->id(),
+    ];
+  }
+
+}