Update to Drupal 8.1.5. For more information, see https://www.drupal.org/project/drupal/releases/8.1.5

core/modules/node/tests/src/Kernel/Migrate/d6/MigrateNodeTest.php

@@ -74,12 +74,19 @@ class MigrateNodeTest extends MigrateNodeTestBase {
     $this->assertIdentical('test rev 3', $node->body->value);
     $this->assertIdentical('filtered_html', $node->body->format);
 
-    // Test that link fields are migrated.
+    // Test that a link field with an external link is migrated.
     $this->assertIdentical('http://groups.drupal.org/', $node->field_test_link->uri);
     $this->assertIdentical('Drupal Groups', $node->field_test_link->title);
     $this->assertIdentical([], $node->field_test_link->options['attributes']);
 
-    // Rerun migration with invalid link attributes and a different URL and
+    // Test that a link field with an internal link is migrated.
+    $node = Node::load(9);
+    $this->assertSame('internal:/node/10', $node->field_test_link->uri);
+    $this->assertSame('Buy it now', $node->field_test_link->title);
+    $this->assertSame(['attributes' => ['target' => '_blank']], $node->field_test_link->options);
+
+    // Rerun migration with two source database changes.
+    // 1. Add an invalid link attributes and a different URL and
     // title. If only the attributes are changed the error does not occur.
     Database::getConnection('default', 'migrate')
       ->update('content_type_story')
@@ -92,12 +99,27 @@ class MigrateNodeTest extends MigrateNodeTestBase {
       ->condition('vid', '3')
       ->execute();
 
+    // 2. Add a leading slash to an internal link.
+    Database::getConnection('default', 'migrate')
+      ->update('content_type_story')
+      ->fields([
+        'field_test_link_url' => '/node/10',
+      ])
+      ->condition('nid', '9')
+      ->condition('vid', '12')
+      ->execute();
+
     $this->rerunMigration();
     $node = Node::load(2);
     $this->assertIdentical('https://www.drupal.org/node/2127611', $node->field_test_link->uri);
     $this->assertIdentical('Migrate API in Drupal 8', $node->field_test_link->title);
     $this->assertIdentical([], $node->field_test_link->options['attributes']);
 
+    $node = Node::load(9);
+    $this->assertSame('internal:/node/10', $node->field_test_link->uri);
+    $this->assertSame('Buy it now', $node->field_test_link->title);
+    $this->assertSame(['attributes' => ['target' => '_blank']], $node->field_test_link->options);
+
     // Test that we can re-import using the EntityContentBase destination.
     $title = $this->rerunMigration();
     $node = Node::load(2);

core/modules/node/tests/src/Unit/Plugin/migrate/source/d6/NodeTest.php

@@ -92,7 +92,10 @@ class NodeTest extends MigrateSqlSourceTestCase {
       'timestamp' => 1279308993,
       'format' => 1,
       'field_test_four' => array(
-        array('value' => '3.14159'),
+        array(
+          'value' => '3.14159',
+          'delta' => 0,
+        ),
       ),
     ),
   );