Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

core/modules/path/src/Controller/PathController.php

@@ -128,7 +128,7 @@ class PathController extends ControllerBase {
       '#type' => 'table',
       '#header' => $header,
       '#rows' => $rows,
-      '#empty' => $this->t('No URL aliases available. <a href="@link">Add URL alias</a>.', array('@link' => $this->url('path.admin_add'))),
+      '#empty' => $this->t('No URL aliases available. <a href=":link">Add URL alias</a>.', array(':link' => $this->url('path.admin_add'))),
     );
     $build['path_pager'] = array('#type' => 'pager');
 

core/modules/path/src/Plugin/migrate/source/UrlAliasBase.php

@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\path\Plugin\migrate\source\UrlAliasBase.
+ */
+
+namespace Drupal\path\Plugin\migrate\source;
+
+use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+
+/**
+ * Base class for the url_alias source plugins.
+ */
+abstract class UrlAliasBase extends DrupalSqlBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {
+    return $this->select('url_alias', 'ua')->fields('ua');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fields() {
+    return array(
+      'pid' => $this->t('The numeric identifier of the path alias.'),
+      'language' => $this->t('The language code of the url alias.'),
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIds() {
+    $ids['pid']['type'] = 'integer';
+    return $ids;
+  }
+
+}

core/modules/path/src/Plugin/migrate/source/d6/UrlAlias.php

@@ -7,46 +7,26 @@
 
 namespace Drupal\path\Plugin\migrate\source\d6;
 
-use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+use Drupal\path\Plugin\migrate\source\UrlAliasBase;
 
 /**
- * Drupal 6 url aliases source from database.
+ * URL aliases source from database.
  *
  * @MigrateSource(
- *   id = "d6_url_alias"
+ *   id = "d6_url_alias",
+ *   source_provider = "path"
  * )
  */
-class UrlAlias extends DrupalSqlBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  public function query() {
-    $query = $this->select('url_alias', 'ua')
-      ->fields('ua', array('pid', 'src', 'dst', 'language'));
-    $query->orderBy('pid');
-
-    return $query;
-  }
+class UrlAlias extends UrlAliasBase {
 
   /**
    * {@inheritdoc}
    */
   public function fields() {
-    return array(
-      'pid' => $this->t('The numeric identifier of the path alias.'),
-      'src' => $this->t('The internal path.'),
-      'dst' => $this->t('The user set path alias.'),
-      'language' => $this->t('The language code of the url alias.'),
-    );
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getIds() {
-    $ids['pid']['type'] = 'integer';
-    return $ids;
+    $fields = parent::fields();
+    $fields['src'] = $this->t('The internal system path.');
+    $fields['dst'] = $this->t('The path alias.');
+    return $fields;
   }
 
 }

core/modules/path/src/Plugin/migrate/source/d7/UrlAlias.php

@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\path\Plugin\migrate\source\d7\UrlAlias.
+ */
+
+namespace Drupal\path\Plugin\migrate\source\d7;
+
+use Drupal\path\Plugin\migrate\source\UrlAliasBase;
+
+/**
+ * URL aliases source from database.
+ *
+ * @MigrateSource(
+ *   id = "d7_url_alias",
+ *   source_provider = "path"
+ * )
+ */
+class UrlAlias extends UrlAliasBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fields() {
+    $fields = parent::fields();
+    $fields['source'] = $this->t('The internal system path.');
+    $fields['alias'] = $this->t('The path alias.');
+    return $fields;
+  }
+
+}

core/modules/path/src/Tests/Migrate/d6/MigrateUrlAliasTest.php

@@ -7,22 +7,20 @@
 
 namespace Drupal\path\Tests\Migrate\d6;
 
-use Drupal\migrate\MigrateExecutable;
+use Drupal\migrate\Entity\Migration;
 use Drupal\migrate\Plugin\MigrateIdMapInterface;
 use Drupal\Core\Database\Database;
 use Drupal\migrate_drupal\Tests\d6\MigrateDrupal6TestBase;
 
 /**
- * Url alias migration.
+ * URL alias migration.
  *
  * @group migrate_drupal_6
  */
 class MigrateUrlAliasTest extends MigrateDrupal6TestBase {
 
   /**
-   * Modules to enable.
-   *
-   * @var array
+   * {@inheritdoc}
    */
   public static $modules = array('path');
 
@@ -39,7 +37,7 @@ class MigrateUrlAliasTest extends MigrateDrupal6TestBase {
    * Test the url alias migration.
    */
   public function testUrlAlias() {
-    $migration = entity_load('migration', 'd6_url_alias');
+    $id_map = Migration::load('d6_url_alias')->getIdMap();
     // Test that the field exists.
     $conditions = array(
       'source' => '/node/1',
@@ -48,7 +46,7 @@ class MigrateUrlAliasTest extends MigrateDrupal6TestBase {
     );
     $path = \Drupal::service('path.alias_storage')->load($conditions);
     $this->assertNotNull($path, "Path alias for node/1 successfully loaded.");
-    $this->assertIdentical($migration->getIdMap()->lookupDestinationID(array($path['pid'])), array('1'), "Test IdMap");
+    $this->assertIdentical($id_map->lookupDestinationID(array($path['pid'])), array('1'), "Test IdMap");
     $conditions = array(
       'source' => '/node/2',
       'alias' => '/alias-two',
@@ -64,12 +62,14 @@ class MigrateUrlAliasTest extends MigrateDrupal6TestBase {
       ->condition('src', 'node/2')
       ->execute();
 
-    db_update($migration->getIdMap()->mapTableName())
+    \Drupal::database()
+      ->update($id_map->mapTableName())
       ->fields(array('source_row_status' => MigrateIdMapInterface::STATUS_NEEDS_UPDATE))
       ->execute();
-    $migration = entity_load_unchanged('migration', 'd6_url_alias');
-    $executable = new MigrateExecutable($migration, $this);
-    $executable->import();
+    $migration = \Drupal::entityManager()
+      ->getStorage('migration')
+      ->loadUnchanged('d6_url_alias');
+    $this->executeMigration($migration);
 
     $path = \Drupal::service('path.alias_storage')->load(array('pid' => $path['pid']));
     $this->assertIdentical('/new-url-alias', $path['alias']);

core/modules/path/src/Tests/Migrate/d7/MigrateUrlAliasTest.php

@@ -0,0 +1,47 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\path\Tests\Migrate\d7\MigrateUrlAliasTest.
+ */
+
+namespace Drupal\path\Tests\Migrate\d7;
+
+use Drupal\migrate_drupal\Tests\d7\MigrateDrupal7TestBase;
+
+/**
+ * Tests URL alias migration.
+ *
+ * @group path
+ */
+class MigrateUrlAliasTest extends MigrateDrupal7TestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['path'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    $this->installSchema('system', ['url_alias']);
+    $this->executeMigration('d7_url_alias');
+  }
+
+  /**
+   * Test the URL alias migration.
+   */
+  public function testUrlAlias() {
+    $path = \Drupal::service('path.alias_storage')->load([
+      'source' => '/taxonomy/term/4',
+      'alias' => '/term33',
+      'langcode' => 'und',
+    ]);
+    $this->assertIdentical('/taxonomy/term/4', $path['source']);
+    $this->assertIdentical('/term33', $path['alias']);
+    $this->assertIdentical('und', $path['langcode']);
+  }
+
+}

core/modules/path/src/Tests/PathAliasTest.php

@@ -7,6 +7,8 @@
 
 namespace Drupal\path\Tests;
 
+use Drupal\Core\Cache\Cache;
+
 /**
  * Add, edit, delete, and change alias and verify its consistency in the
  * database.
@@ -57,6 +59,8 @@ class PathAliasTest extends PathTestBase {
 
     // Visit the alias for the node and confirm a cache entry is created.
     \Drupal::cache('data')->deleteAll();
+    // @todo Remove this once https://www.drupal.org/node/2480077 lands.
+    Cache::invalidateTags(['rendered']);
     $this->drupalGet(trim($edit['alias'], '/'));
     $this->assertTrue(\Drupal::cache('data')->get('preload-paths:' .  $edit['source']), 'Cache entry was created.');
   }

core/modules/path/src/Tests/PathLanguageTest.php

@@ -19,7 +19,7 @@ class PathLanguageTest extends PathTestBase {
    *
    * @var array
    */
-  public static $modules = array('path', 'locale', 'content_translation');
+  public static $modules = array('path', 'locale', 'locale_test', 'content_translation');
 
   /**
    * An user with permissions to administer content types.

core/modules/path/src/Tests/PathLanguageUiTest.php

@@ -19,7 +19,7 @@ class PathLanguageUiTest extends PathTestBase {
    *
    * @var array
    */
-  public static $modules = array('path', 'locale');
+  public static $modules = array('path', 'locale', 'locale_test');
 
   protected function setUp() {
     parent::setUp();