class EntityRevisionTest

class EntityRevisionTest extends MigrateTestBase {
    use ContentTypeCreationTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'content_translation',
        'field',
        'filter',
        'language',
        'node',
        'system',
        'text',
        'user',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installEntitySchema('node');
        $this->installEntitySchema('user');
        $this->installConfig('node');
        $this->installSchema('node', [
            'node_access',
        ]);
    }
    
    /**
     * Tests that EntityRevision correctly handles revision translations.
     */
    public function testRevisionTranslation() {
        ConfigurableLanguage::createFromLangcode('fr')->save();
        
        /** @var \Drupal\node\NodeInterface $node */
        $node = Node::create([
            'type' => $this->createContentType()
                ->id(),
            'title' => 'Default 1',
        ]);
        $node->addTranslation('fr', [
            'title' => 'French 1',
        ]);
        $node->save();
        $node->setNewRevision();
        $node->setTitle('Default 2');
        $node->getTranslation('fr')
            ->setTitle('French 2');
        $node->save();
        $migration = [
            'source' => [
                'plugin' => 'embedded_data',
                'data_rows' => [
                    [
                        'nid' => $node->id(),
                        'vid' => $node->getRevisionId(),
                        'langcode' => 'fr',
                        'title' => 'Titre nouveau, tabarnak!',
                    ],
                ],
                'ids' => [
                    'nid' => [
                        'type' => 'integer',
                    ],
                    'vid' => [
                        'type' => 'integer',
                    ],
                    'langcode' => [
                        'type' => 'string',
                    ],
                ],
            ],
            'process' => [
                'nid' => 'nid',
                'vid' => 'vid',
                'langcode' => 'langcode',
                'title' => 'title',
            ],
            'destination' => [
                'plugin' => 'entity_revision:node',
                'translations' => TRUE,
            ],
        ];
        
        /** @var \Drupal\migrate\Plugin\MigrationInterface $migration */
        $migration = $this->container
            ->get('plugin.manager.migration')
            ->createStubMigration($migration);
        $this->executeMigration($migration);
        // The entity_revision destination uses the revision ID and langcode as its
        // keys (the langcode is only used if the destination is configured for
        // translation), so we should be able to look up the source IDs by revision
        // ID and langcode.
        $source_ids = $migration->getIdMap()
            ->lookupSourceID([
            'vid' => $node->getRevisionId(),
            'langcode' => 'fr',
        ]);
        $this->assertNotEmpty($source_ids);
        $this->assertSame($node->id(), $source_ids['nid']);
        $this->assertSame($node->getRevisionId(), $source_ids['vid']);
        $this->assertSame('fr', $source_ids['langcode']);
        // Confirm the french revision was used in the migration, instead of the
        // default revision.
        
        /** @var \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager */
        $entity_type_manager = \Drupal::entityTypeManager();
        $revision = $entity_type_manager->getStorage('node')
            ->loadRevision(1);
        $this->assertSame('Default 1', $revision->label());
        $this->assertSame('French 1', $revision->getTranslation('fr')
            ->label());
        $revision = $entity_type_manager->getStorage('node')
            ->loadRevision(2);
        $this->assertSame('Default 2', $revision->label());
        $this->assertSame('Titre nouveau, tabarnak!', $revision->getTranslation('fr')
            ->label());
    }

}