MigrateBookTest.php

<?php

namespace Drupal\Tests\book\Kernel\Migrate\d6;

use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
use Drupal\node\Entity\Node;

/**
 * Upgrade book structure.
 *
 * @group migrate_drupal_6
 */
class MigrateBookTest extends MigrateDrupal6TestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'book',
    'node',
    'menu_ui',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installSchema('book', [
      'book',
    ]);
    $this->installSchema('node', [
      'node_access',
    ]);
    $this->migrateContent();
    $this->executeMigrations([
      'd6_node',
      'd6_book',
    ]);
  }
  
  /**
   * Tests the Drupal 6 book structure to Drupal 8 migration.
   */
  public function testBook() {
    $nodes = Node::loadMultiple([
      4,
      5,
      6,
      7,
      8,
    ]);
    $this->assertSame('4', $nodes[4]->book['bid']);
    $this->assertSame('0', $nodes[4]->book['pid']);
    $this->assertSame('4', $nodes[5]->book['bid']);
    $this->assertSame('4', $nodes[5]->book['pid']);
    $this->assertSame('4', $nodes[6]->book['bid']);
    $this->assertSame('5', $nodes[6]->book['pid']);
    $this->assertSame('4', $nodes[7]->book['bid']);
    $this->assertSame('5', $nodes[7]->book['pid']);
    $this->assertSame('8', $nodes[8]->book['bid']);
    $this->assertSame('0', $nodes[8]->book['pid']);
    $tree = \Drupal::service('book.manager')->bookTreeAllData(4);
    $this->assertSame('4', $tree['49990 Node 4 4']['link']['nid']);
    $this->assertSame('5', $tree['49990 Node 4 4']['below']['50000 Node 5 5']['link']['nid']);
    $this->assertSame('6', $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 6 6']['link']['nid']);
    $this->assertSame('7', $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 7 7']['link']['nid']);
    $this->assertSame([], $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 6 6']['below']);
    $this->assertSame([], $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 7 7']['below']);
    // Set the d6_book migration to update and re run the migration.
    $id_map = $this->migration
      ->getIdMap();
    $id_map->prepareUpdate();
    $this->executeMigration('d6_book');
  }

}