class MigrateDrupal6AuditIdsTest

class MigrateDrupal6AuditIdsTest extends MigrateDrupal6TestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'file',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    // Install required schemas.
    $this->installEntitySchema('aggregator_feed');
    $this->installEntitySchema('aggregator_item');
    $this->installEntitySchema('file');
  }
  
  /**
   * Tests all migrations with ID conflicts.
   */
  public function testIdConflicts() {
    // Get all Drupal 6 migrations.
    $migrations = $this->container
      ->get('plugin.manager.migration')
      ->createInstancesByTag('Drupal 6');
    // Create content.
    $entity_type_manager = \Drupal::entityTypeManager();
    // Create an aggregator feed.
    if ($entity_type_manager->hasDefinition('aggregator_feed')) {
      $feed = $entity_type_manager->getStorage('aggregator_feed')
        ->create([
        'title' => 'feed',
        'url' => 'http://www.example.com',
      ]);
      $feed->save();
      // Create an aggregator feed item.
      $item = $entity_type_manager->getStorage('aggregator_item')
        ->create([
        'title' => 'feed item',
        'fid' => $feed->id(),
        'link' => 'http://www.example.com',
      ]);
      $item->save();
    }
    // Audit the IDs of all migrations. There should be conflicts since content
    // has been created.
    $conflicts = array_map(function (AuditResult $result) {
      return $result->passed() ? NULL : $result->getMigration()
        ->getBaseId();
    }, (new IdAuditor())->auditMultiple($migrations));
    $expected = [
      'd6_aggregator_feed',
      'd6_aggregator_item',
    ];
    $this->assertEmpty(array_diff(array_filter($conflicts), $expected));
  }

}