--- /dev/null
+<?php
+
+namespace Drupal\Tests\taxonomy\Kernel\Plugin\migrate\source\d6;
+
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Tests\migrate\Kernel\MigrateSqlSourceTestBase;
+
+/**
+ * Tests D6 vocabulary source plugin.
+ *
+ * @covers \Drupal\taxonomy\Plugin\migrate\source\d6\Vocabulary
+ * @group taxonomy
+ */
+class VocabularyTest extends MigrateSqlSourceTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['taxonomy', 'migrate_drupal'];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function providerSource() {
+ $tests = [];
+
+ // The source data.
+ $tests[0]['source_data']['vocabulary'] = [
+ [
+ 'vid' => 1,
+ 'name' => 'Tags',
+ 'description' => 'Tags description.',
+ 'help' => 1,
+ 'relations' => 0,
+ 'hierarchy' => 0,
+ 'multiple' => 0,
+ 'required' => 0,
+ 'tags' => 1,
+ 'module' => 'taxonomy',
+ 'weight' => 0,
+ ],
+ [
+ 'vid' => 2,
+ 'name' => 'Categories',
+ 'description' => 'Categories description.',
+ 'help' => 1,
+ 'relations' => 1,
+ 'hierarchy' => 1,
+ 'multiple' => 0,
+ 'required' => 1,
+ 'tags' => 0,
+ 'module' => 'taxonomy',
+ 'weight' => 0,
+ ],
+ ];
+ $tests[0]['source_data']['vocabulary_node_types'] = [
+ [
+ 'vid' => 1,
+ 'type' => 'page',
+ ],
+ [
+ 'vid' => 1,
+ 'type' => 'article',
+ ],
+ [
+ 'vid' => 2,
+ 'type' => 'article',
+ ],
+ ];
+
+ // The expected results.
+ $tests[0]['expected_data'] = [
+ [
+ 'vid' => 1,
+ 'name' => 'Tags',
+ 'description' => 'Tags description.',
+ 'help' => 1,
+ 'relations' => 0,
+ 'hierarchy' => 0,
+ 'multiple' => 0,
+ 'required' => 0,
+ 'tags' => 1,
+ 'module' => 'taxonomy',
+ 'weight' => 0,
+ 'node_types' => ['page', 'article'],
+ 'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
+ ],
+ [
+ 'vid' => 2,
+ 'name' => 'Categories',
+ 'description' => 'Categories description.',
+ 'help' => 1,
+ 'relations' => 1,
+ 'hierarchy' => 1,
+ 'multiple' => 0,
+ 'required' => 1,
+ 'tags' => 0,
+ 'module' => 'taxonomy',
+ 'weight' => 0,
+ 'node_types' => ['article'],
+ 'cardinality' => 1,
+ ],
+ ];
+
+ return $tests;
+ }
+
+}