Issue #3439836 by pooja_sharma, thebumik, FeyP, vensires, smustgrave,...

namespace Drupal\Tests\file\Kernel;

use Drupal\file\Entity\File;

use Drupal\Tests\user\Traits\UserCreationTrait;

/**

 * File saving tests.

 */

class SaveTest extends FileManagedUnitTestBase {

  /**

   * {@inheritdoc}

   *

   * @todo Remove and fix test to not rely on super user.

   * @see https://www.drupal.org/project/drupal/issues/3437620

   */

  protected bool $usesSuperUserAccessPolicy = TRUE;

  use UserCreationTrait;

  public function testFileSave(): void {

    $account = $this->createUser();

    // Create a new file entity.

    $file = File::create([

      'uid' => 1,

      'uid' => $account->id(),

      'filename' => 'druplicon.txt',

      'uri' => 'public://druplicon.txt',

      'filemime' => 'text/plain',

    // Try to insert a second file with the same name apart from case insensitivity

    // to ensure the 'uri' index allows for filenames with different cases.

    $uppercase_values = [

      'uid' => 1,

      'uid' => $account->id(),

      'filename' => 'DRUPLICON.txt',

      'uri' => 'public://DRUPLICON.txt',

      'filemime' => 'text/plain',

    // Save a file with zero bytes.

    $file = File::create([

      'uid' => 1,

      'uid' => $account->id(),

      'filename' => 'no-druplicon.txt',

      'uri' => 'public://no-druplicon.txt',

      'filemime' => 'text/plain',