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}
     */
    public static $modules = [
        'book',
        'node',
        'menu_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        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->assertIdentical('4', $nodes[4]->book['bid']);
        $this->assertIdentical('0', $nodes[4]->book['pid']);
        $this->assertIdentical('4', $nodes[5]->book['bid']);
        $this->assertIdentical('4', $nodes[5]->book['pid']);
        $this->assertIdentical('4', $nodes[6]->book['bid']);
        $this->assertIdentical('5', $nodes[6]->book['pid']);
        $this->assertIdentical('4', $nodes[7]->book['bid']);
        $this->assertIdentical('5', $nodes[7]->book['pid']);
        $this->assertIdentical('8', $nodes[8]->book['bid']);
        $this->assertIdentical('0', $nodes[8]->book['pid']);
        $tree = \Drupal::service('book.manager')->bookTreeAllData(4);
        $this->assertIdentical('4', $tree['49990 Node 4 4']['link']['nid']);
        $this->assertIdentical('5', $tree['49990 Node 4 4']['below']['50000 Node 5 5']['link']['nid']);
        $this->assertIdentical('6', $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 6 6']['link']['nid']);
        $this->assertIdentical('7', $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 7 7']['link']['nid']);
        $this->assertIdentical([], $tree['49990 Node 4 4']['below']['50000 Node 5 5']['below']['50000 Node 6 6']['below']);
        $this->assertIdentical([], $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');
    }

}