--- /dev/null
+<?php
+
+namespace Drupal\Tests\content_translation\Kernel\Migrate\d6;
+
+use Drupal\taxonomy\Entity\Term;
+use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
+use Drupal\taxonomy\TermInterface;
+
+/**
+ * Test migration of translated taxonomy terms.
+ *
+ * @group migrate_drupal_6
+ */
+class MigrateTaxonomyTermTranslationTest extends MigrateDrupal6TestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = [
+ 'content_translation',
+ 'language',
+ 'menu_ui',
+ 'node',
+ 'taxonomy',
+ ];
+
+ /**
+ * The cached taxonomy tree items, keyed by vid and tid.
+ *
+ * @var array
+ */
+ protected $treeData = [];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->installEntitySchema('taxonomy_term');
+ $this->installConfig(static::$modules);
+ $this->executeMigrations([
+ 'd6_node_type',
+ 'd6_field',
+ 'd6_taxonomy_vocabulary',
+ 'd6_field_instance',
+ 'd6_taxonomy_term',
+ 'd6_taxonomy_term_translation',
+ ]);
+ }
+
+ /**
+ * Validate a migrated term contains the expected values.
+ *
+ * @param int $id
+ * Entity ID to load and check.
+ * @param string $expected_language
+ * The language code for this term.
+ * @param string $expected_label
+ * The label the migrated entity should have.
+ * @param string $expected_vid
+ * The parent vocabulary the migrated entity should have.
+ * @param string $expected_description
+ * The description the migrated entity should have.
+ * @param string $expected_format
+ * The format the migrated entity should have.
+ * @param int $expected_weight
+ * The weight the migrated entity should have.
+ * @param array $expected_parents
+ * The parent terms the migrated entity should have.
+ * @param int $expected_field_integer_value
+ * The value the migrated entity field should have.
+ * @param int $expected_term_reference_tid
+ * The term reference ID the migrated entity field should have.
+ */
+ protected function assertEntity($id, $expected_language, $expected_label, $expected_vid, $expected_description = '', $expected_format = NULL, $expected_weight = 0, $expected_parents = [], $expected_field_integer_value = NULL, $expected_term_reference_tid = NULL) {
+ /** @var \Drupal\taxonomy\TermInterface $entity */
+ $entity = Term::load($id);
+ $this->assertInstanceOf(TermInterface::class, $entity);
+ $this->assertSame($expected_language, $entity->language()->getId());
+ $this->assertSame($expected_label, $entity->label());
+ $this->assertSame($expected_vid, $entity->getVocabularyId());
+ $this->assertSame($expected_description, $entity->getDescription());
+ $this->assertSame($expected_format, $entity->getFormat());
+ $this->assertSame($expected_weight, $entity->getWeight());
+ $this->assertHierarchy($expected_vid, $id, $expected_parents);
+ }
+
+ /**
+ * Assert that a term is present in the tree storage, with the right parents.
+ *
+ * @param string $vid
+ * Vocabulary ID.
+ * @param int $tid
+ * ID of the term to check.
+ * @param array $parent_ids
+ * The expected parent term IDs.
+ */
+ protected function assertHierarchy($vid, $tid, array $parent_ids) {
+ if (!isset($this->treeData[$vid])) {
+ $tree = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->loadTree($vid);
+ $this->treeData[$vid] = [];
+ foreach ($tree as $item) {
+ $this->treeData[$vid][$item->tid] = $item;
+ }
+ }
+
+ $this->assertArrayHasKey($tid, $this->treeData[$vid], "Term $tid exists in taxonomy tree");
+ $term = $this->treeData[$vid][$tid];
+ $this->assertEquals($parent_ids, array_filter($term->parents), "Term $tid has correct parents in taxonomy tree");
+ }
+
+ /**
+ * Tests the Drupal 6 i18n taxonomy term to Drupal 8 migration.
+ */
+ public function testTranslatedTaxonomyTerms() {
+ $this->assertEntity(1, 'zu', 'zu - term 1 of vocabulary 1', 'vocabulary_1_i_0_', 'zu - description of term 1 of vocabulary 1', NULL, '0', []);
+ $this->assertEntity(2, 'fr', 'fr - term 2 of vocabulary 2', 'vocabulary_2_i_1_', 'fr - description of term 2 of vocabulary 2', NULL, '3', []);
+ $this->assertEntity(3, 'fr', 'fr - term 3 of vocabulary 2', 'vocabulary_2_i_1_', 'fr - description of term 3 of vocabulary 2', NULL, '4', ['2']);
+ $this->assertEntity(4, 'en', 'term 4 of vocabulary 3', 'vocabulary_3_i_2_', 'description of term 4 of vocabulary 3', NULL, '6', []);
+ $this->assertEntity(5, 'en', 'term 5 of vocabulary 3', 'vocabulary_3_i_2_', 'description of term 5 of vocabulary 3', NULL, '7', ['4']);
+ $this->assertEntity(6, 'en', 'term 6 of vocabulary 3', 'vocabulary_3_i_2_', 'description of term 6 of vocabulary 3', NULL, '8', ['4', '5']);
+ $this->assertEntity(7, 'fr', 'fr - term 2 of vocabulary 1', 'vocabulary_1_i_0_', 'fr - desc of term 2 vocab 1', NULL, '0', []);
+ }
+
+}