text: <?php
  
  namespace Drupal\Tests\file\Kernel\Migrate\d6;
  
  use Drupal\file\Entity\File;
  use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
  use Drupal\node\Entity\Node;
  
  /**
   * Migrate association data between nodes and files.
   *
   * @group migrate_drupal_6
   */
  class MigrateUploadTest extends MigrateDrupal6TestBase {
  
    /**
     * {@inheritdoc}
     */
    public static $modules = ['menu_ui'];
  
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
      parent::setUp();
  
      $this->installEntitySchema('file');
      $this->installEntitySchema('node');
      $this->installSchema('file', ['file_usage']);
      $this->installSchema('node', ['node_access']);
  
      $id_mappings = ['d6_file' => []];
      // Create new file entities.
      for ($i = 1; $i <= 3; $i++) {
        $file = File::create([
          'fid' => $i,
          'uid' => 1,
          'filename' => 'druplicon.txt',
          'uri' => "public://druplicon-$i.txt",
          'filemime' => 'text/plain',
          'created' => 1,
          'changed' => 1,
          'status' => FILE_STATUS_PERMANENT,
        ]);
        $file->enforceIsNew();
        file_put_contents($file->getFileUri(), 'hello world');
  
        // Save it, inserting a new record.
        $file->save();
        $id_mappings['d6_file'][] = [[$i], [$i]];
      }
      $this->prepareMigrations($id_mappings);
  
      $this->migrateContent();
      // Since we are only testing a subset of the file migration, do not check
      // that the full file migration has been run.
      $migration = $this->getMigration('d6_upload');
      $migration->set('requirements', []);
      $this->executeMigration($migration);
    }
  
    /**
     * Test upload migration from Drupal 6 to Drupal 8.
     */
    public function testUpload() {
      $this->container->get('entity.manager')
        ->getStorage('node')
        ->resetCache([1, 2]);
  
      $nodes = Node::loadMultiple([1, 2]);
      $node = $nodes[1];
      $this->assertIdentical(1, count($node->upload));
      $this->assertIdentical('1', $node->upload[0]->target_id);
      $this->assertIdentical('file 1-1-1', $node->upload[0]->description);
      $this->assertIdentical(FALSE, $node->upload[0]->isDisplayed());
  
      $node = $nodes[2];
      $this->assertIdentical(2, count($node->upload));
      $this->assertIdentical('3', $node->upload[0]->target_id);
      $this->assertIdentical('file 2-3-3', $node->upload[0]->description);
      $this->assertIdentical(FALSE, $node->upload[0]->isDisplayed());
      $this->assertIdentical('2', $node->upload[1]->target_id);
      $this->assertIdentical(TRUE, $node->upload[1]->isDisplayed());
      $this->assertIdentical('file 2-3-2', $node->upload[1]->description);
    }
  
  }
  