--- /dev/null
+<?php
+
+namespace Drupal\Tests\comment\Kernel\Migrate\d6;
+
+use Drupal\field\Entity\FieldConfig;
+use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
+
+/**
+ * Tests the migration of comment field instances from Drupal 6.
+ *
+ * @group comment
+ * @group migrate_drupal_6
+ */
+class MigrateCommentFieldInstanceTest extends MigrateDrupal6TestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['comment', 'menu_ui'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->installConfig(['comment']);
+ $this->migrateContentTypes();
+ $this->executeMigrations([
+ 'd6_comment_type',
+ 'd6_comment_field',
+ 'd6_comment_field_instance',
+ ]);
+ }
+
+ /**
+ * Asserts a comment field instance entity.
+ *
+ * @param string $bundle
+ * The bundle ID.
+ * @param string $field_name
+ * The field name.
+ * @param int $default_value
+ * The field's default_value setting.
+ * @param int $default_mode
+ * The field's default_mode setting.
+ * @param int $per_page
+ * The field's per_page setting.
+ * @param bool $anonymous
+ * The field's anonymous setting.
+ * @param int $form_location
+ * The field's form_location setting.
+ * @param bool $preview
+ * The field's preview setting.
+ */
+ protected function assertEntity($bundle, $field_name, $default_value, $default_mode, $per_page, $anonymous, $form_location, $preview) {
+ $entity = FieldConfig::load("node.$bundle.$field_name");
+ $this->assertInstanceOf(FieldConfig::class, $entity);
+ $this->assertSame('node', $entity->getTargetEntityTypeId());
+ $this->assertSame('Comments', $entity->label());
+ $this->assertTrue($entity->isRequired());
+ $this->assertSame($bundle, $entity->getTargetBundle());
+ $this->assertSame($field_name, $entity->getFieldStorageDefinition()->getName());
+ $this->assertSame($default_value, $entity->get('default_value')[0]['status']);
+ $this->assertSame($default_mode, $entity->getSetting('default_mode'));
+ $this->assertSame($per_page, $entity->getSetting('per_page'));
+ $this->assertSame($anonymous, $entity->getSetting('anonymous'));
+ $this->assertSame($form_location, $entity->getSetting('form_location'));
+ $this->assertSame($preview, $entity->getSetting('preview'));
+ }
+
+ /**
+ * Test the migrated field instance values.
+ */
+ public function testMigration() {
+ $this->assertEntity('article', 'comment_node_article', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('company', 'comment_node_company', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('employee', 'comment_node_employee', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('event', 'comment_node_event', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('forum', 'comment_forum', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('page', 'comment_node_page', 0, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('sponsor', 'comment_node_sponsor', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('story', 'comment_node_story', 2, 0, 70, 1, FALSE, 0);
+ $this->assertEntity('test_event', 'comment_node_test_event', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('test_page', 'comment_node_test_page', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('test_planet', 'comment_node_test_planet', 2, 1, 50, 0, FALSE, 1);
+ $this->assertEntity('test_story', 'comment_node_test_story', 2, 1, 50, 0, FALSE, 1);
+ }
+
+}