diff -u b/core/modules/media/tests/src/FunctionalJavascript/MediaInlineFileWidgetTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaInlineFileWidgetTest.php
--- b/core/modules/media/tests/src/FunctionalJavascript/MediaInlineFileWidgetTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaInlineFileWidgetTest.php
@@ -13,7 +13,7 @@
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['node'];
+  public static $modules = ['node', 'options'];
 
   protected $strictConfigSchema = FALSE;
 
@@ -47,11 +47,14 @@
     $this->mediaTypeId = $media_type->id();
     // Create two test fields on this media type, one of them required.
     $media_required_field_storage = FieldStorageConfig::create([
-      'type' => 'string',
+      'type' => 'list_string',
       'entity_type' => 'media',
       'field_name' => 'field_media_required',
       'settings' => [
-        'max_length' => 255,
+        'allowed_values' => [
+          'foo' => 'Foo',
+          'bar' => 'Bar',
+        ],
       ],
     ]);
     $media_required_field_storage->save();
@@ -61,7 +64,7 @@
       'required' => TRUE,
     ])->save();
     entity_get_form_display('media', $media_type->id(), 'add_inline')
-      ->setComponent('field_media_required', ['type' => 'string_textfield'])
+      ->setComponent('field_media_required', ['type' => 'options_select'])
       ->save();
     $media_nonrequired_field_storage = FieldStorageConfig::create([
       'type' => 'string',
@@ -89,7 +92,7 @@
         'settings' => [],
       ])
       ->setComponent('field_media_required', [
-        'type' => 'string',
+        'type' => 'list_default',
         'label' => 'hidden',
         'settings' => [],
       ])
@@ -165,7 +168,7 @@
     $this->assertNotEmpty($result);
     $media_field = $assert_session->elementExists('css', 'details[data-drupal-selector="edit-field-media-reference"]');
     // The required field sould be present and required.
-    $assert_session->elementExists('css', '.field--name-field-media-required input.required', $media_field);
+    $assert_session->elementExists('css', '.field--name-field-media-required select.required', $media_field);
     // The non-required field should not be there.
     $assert_session->elementNotExists('css', '.field--name-field-media-nonrequired input', $media_field);
     // Since cardinality is -1, we should be allowed to upload another file now.
@@ -183,7 +186,7 @@
     // Save the node and check page elements correspond to what is expected.
     $node_title = 'Host Node 1';
     $page->fillField('Title', $node_title);
-    $required_text = $this->randomMachineName();
+    $required_text = 'foo';
     $page->fillField('field_media_required', $required_text);
     $page->pressButton('Save');
     // The node has been correctly saved.
@@ -221,7 +224,7 @@
     $assert_session->assertWaitOnAjaxRequest();
 
     // Fill in the second media required field and save.
-    $required_text2 = $this->randomMachineName();
+    $required_text2 = 'bar';
     $page->fillField('field_media_required', $required_text2);
     $page->pressButton('Save');