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

core/modules/migrate_drupal/migrate_drupal.services.yml

@@ -1,6 +1,6 @@
 services:
   plugin.manager.migrate.cckfield:
-    class: Drupal\migrate\Plugin\MigratePluginManager
+    class: Drupal\migrate_drupal\Plugin\MigrateCckFieldPluginManager
     arguments:
       - cckfield
       - '@container.namespaces'

core/modules/migrate_drupal/src/Annotation/MigrateCckField.php

@@ -8,9 +8,10 @@ use Drupal\Component\Annotation\Plugin;
  * Defines a cckfield plugin annotation object.
  *
  * cckfield plugins are variously responsible for handling the migration of
- * CCK fields from Drupal 6 to Drupal 8. They are allowed to alter CCK-related
- * migrations when migrations are being generated, and can compute destination
- * field types for individual fields during the actual migration process.
+ * CCK fields from Drupal 6 to Drupal 8, and Field API fields from Drupal 7
+ * to Drupal 8. They are allowed to alter CCK-related migrations when migrations
+ * are being generated, and can compute destination field types for individual
+ * fields during the actual migration process.
  *
  * Plugin Namespace: Plugin\migrate\cckfield
  *
@@ -18,6 +19,17 @@ use Drupal\Component\Annotation\Plugin;
  */
 class MigrateCckField extends Plugin {
 
+  /**
+   * @inheritdoc
+   */
+  public function __construct($values) {
+    parent::__construct($values);
+    // Provide default value for core property, in case it's missing.
+    if (empty($this->definition['core'])) {
+      $this->definition['core'] = [6];
+    }
+  }
+
   /**
    * The plugin ID.
    *
@@ -32,4 +44,11 @@ class MigrateCckField extends Plugin {
    */
   public $type_map = [];
 
+  /**
+   * The Drupal core version(s) this plugin applies to.
+   *
+   * @var int[]
+   */
+  public $core = [];
+
 }

core/modules/migrate_drupal/src/MigrationConfigurationTrait.php

@@ -0,0 +1,170 @@
+<?php
+
+namespace Drupal\migrate_drupal;
+
+use Drupal\Core\Database\Connection;
+use Drupal\Core\Database\Database;
+use Drupal\migrate\Exception\RequirementsException;
+use Drupal\migrate\Plugin\RequirementsInterface;
+
+/**
+ * Configures the appropriate migrations for a given source Drupal database.
+ */
+trait MigrationConfigurationTrait {
+
+  /**
+   * Gets the database connection for the source Drupal database.
+   *
+   * @param array $database
+   *   Database array representing the source Drupal database.
+   *
+   * @return \Drupal\Core\Database\Connection
+   *   The database connection for the source Drupal database.
+   */
+  protected function getConnection(array $database) {
+    // Set up the connection.
+    Database::addConnectionInfo('upgrade', 'default', $database);
+    $connection = Database::getConnection('default', 'upgrade');
+    return $connection;
+  }
+
+  /**
+   * Gets the system data from the system table of the source Drupal database.
+   *
+   * @param \Drupal\Core\Database\Connection $connection
+   *   Database connection to the source Drupal database.
+   *
+   * @return array
+   *   The system data from the system table of the source Drupal database.
+   */
+  protected function getSystemData(Connection $connection) {
+    $system_data = [];
+    try {
+      $results = $connection->select('system', 's', [
+        'fetch' => \PDO::FETCH_ASSOC,
+      ])
+        ->fields('s')
+        ->execute();
+      foreach ($results as $result) {
+        $system_data[$result['type']][$result['name']] = $result;
+      }
+    }
+    catch (\Exception $e) {
+      // The table might not exist for example in tests.
+    }
+    return $system_data;
+  }
+
+  /**
+   * Creates the necessary state entries for SqlBase::getDatabase() to work.
+   *
+   * The state entities created here have to exist before migration plugin
+   * instances are created so that derivers such as
+   * \Drupal\taxonomy\Plugin\migrate\D6TermNodeDeriver can access the source
+   * database.
+   *
+   * @param array $database
+   *   The source database settings.
+   * @param string $drupal_version
+   *   The Drupal version.
+   *
+   * @see \Drupal\migrate\Plugin\migrate\source\SqlBase::getDatabase()
+   */
+  protected function createDatabaseStateSettings(array $database, $drupal_version) {
+    $database_state['key'] = 'upgrade';
+    $database_state['database'] = $database;
+    $database_state_key = 'migrate_drupal_' . $drupal_version;
+    \Drupal::state()->set($database_state_key, $database_state);
+    \Drupal::state()->set('migrate.fallback_state_key', $database_state_key);
+  }
+
+  /**
+   * Gets the migrations for import.
+   *
+   * @param string $database_state_key
+   *   The state key.
+   * @param int $drupal_version
+   *   The version of Drupal we're getting the migrations for.
+   *
+   * @return \Drupal\migrate\Plugin\MigrationInterface[]
+   *   The migrations for import.
+   */
+  protected function getMigrations($database_state_key, $drupal_version) {
+    $version_tag = 'Drupal ' . $drupal_version;
+    $plugin_manager = \Drupal::service('plugin.manager.migration');
+    /** @var \Drupal\migrate\Plugin\Migration[] $all_migrations */
+    $all_migrations = $plugin_manager->createInstancesByTag($version_tag);
+    $migrations = [];
+    foreach ($all_migrations as $migration) {
+      try {
+        // @todo https://drupal.org/node/2681867 We should be able to validate
+        //   the entire migration at this point.
+        $source_plugin = $migration->getSourcePlugin();
+        if ($source_plugin instanceof RequirementsInterface) {
+          $source_plugin->checkRequirements();
+        }
+        $destination_plugin = $migration->getDestinationPlugin();
+        if ($destination_plugin instanceof RequirementsInterface) {
+          $destination_plugin->checkRequirements();
+        }
+        $migrations[] = $migration;
+      }
+      catch (RequirementsException $e) {
+        // Migrations which are not applicable given the source and destination
+        // site configurations (e.g., what modules are enabled) will be silently
+        // ignored.
+      }
+    }
+
+    return $migrations;
+  }
+
+  /**
+   * Determines what version of Drupal the source database contains.
+   *
+   * @param \Drupal\Core\Database\Connection $connection
+   *   The database connection object.
+   *
+   * @return int|FALSE
+   *   An integer representing the major branch of Drupal core (e.g. '6' for
+   *   Drupal 6.x), or FALSE if no valid version is matched.
+   */
+  protected function getLegacyDrupalVersion(Connection $connection) {
+    // Don't assume because a table of that name exists, that it has the columns
+    // we're querying. Catch exceptions and report that the source database is
+    // not Drupal.
+    // Drupal 5/6/7 can be detected by the schema_version in the system table.
+    if ($connection->schema()->tableExists('system')) {
+      try {
+        $version_string = $connection
+          ->query('SELECT schema_version FROM {system} WHERE name = :module', [':module' => 'system'])
+          ->fetchField();
+        if ($version_string && $version_string[0] == '1') {
+          if ((int) $version_string >= 1000) {
+            $version_string = '5';
+          }
+          else {
+            $version_string = FALSE;
+          }
+        }
+      }
+      catch (\PDOException $e) {
+        $version_string = FALSE;
+      }
+    }
+    // For Drupal 8 (and we're predicting beyond) the schema version is in the
+    // key_value store.
+    elseif ($connection->schema()->tableExists('key_value')) {
+      $result = $connection
+        ->query("SELECT value FROM {key_value} WHERE collection = :system_schema  and name = :module", [':system_schema' => 'system.schema', ':module' => 'system'])
+        ->fetchField();
+      $version_string = unserialize($result);
+    }
+    else {
+      $version_string = FALSE;
+    }
+
+    return $version_string ? substr($version_string, 0, 1) : FALSE;
+  }
+
+}

core/modules/migrate_drupal/src/MigrationCreationTrait.php

@@ -2,172 +2,12 @@
 
 namespace Drupal\migrate_drupal;
 
-use Drupal\Core\Database\Connection;
-use Drupal\Core\Database\Database;
-use Drupal\migrate\Exception\RequirementsException;
-use Drupal\migrate\Plugin\RequirementsInterface;
 
 /**
- * Creates the appropriate migrations for a given source Drupal database.
- *
- * @todo https://www.drupal.org/node/2682585 The trait no longer creates
- *   migrations.
+ * @deprecated in Drupal 8.1.x, will be removed before Drupal 9.0.0. Use
+ *   \Drupal\migrate_drupal\MigrationConfigurationTrait instead.
  */
 trait MigrationCreationTrait {
-
-  /**
-   * Gets the database connection for the source Drupal database.
-   *
-   * @param array $database
-   *   Database array representing the source Drupal database.
-   *
-   * @return \Drupal\Core\Database\Connection
-   *   The database connection for the source Drupal database.
-   */
-  protected function getConnection(array $database) {
-    // Set up the connection.
-    Database::addConnectionInfo('upgrade', 'default', $database);
-    $connection = Database::getConnection('default', 'upgrade');
-    return $connection;
-  }
-
-  /**
-   * Gets the system data from the system table of the source Drupal database.
-   *
-   * @param \Drupal\Core\Database\Connection $connection
-   *   Database connection to the source Drupal database.
-   *
-   * @return array
-   *   The system data from the system table of the source Drupal database.
-   */
-  protected function getSystemData(Connection $connection) {
-    $system_data = [];
-    try {
-      $results = $connection->select('system', 's', [
-        'fetch' => \PDO::FETCH_ASSOC,
-      ])
-        ->fields('s')
-        ->execute();
-      foreach ($results as $result) {
-        $system_data[$result['type']][$result['name']] = $result;
-      }
-    }
-    catch (\Exception $e) {
-      // The table might not exist for example in tests.
-    }
-    return $system_data;
-  }
-
-  /**
-   * Creates the necessary state entries for SqlBase::getDatabase() to work.
-   *
-   * The state entities created here have to exist before migration plugin
-   * instances are created so that derivers such as
-   * \Drupal\taxonomy\Plugin\migrate\D6TermNodeDeriver can access the source
-   * database.
-   *
-   * @param array $database
-   *   The source database settings.
-   * @param string $drupal_version
-   *   The Drupal version.
-   *
-   * @see \Drupal\migrate\Plugin\migrate\source\SqlBase::getDatabase()
-   */
-  protected function createDatabaseStateSettings(array $database, $drupal_version) {
-    $database_state['key'] = 'upgrade';
-    $database_state['database'] = $database;
-    $database_state_key = 'migrate_drupal_' . $drupal_version;
-    \Drupal::state()->set($database_state_key, $database_state);
-    \Drupal::state()->set('migrate.fallback_state_key', $database_state_key);
-  }
-
-  /**
-   * Gets the migrations for import.
-   *
-   * @param string $database_state_key
-   *   The state key.
-   * @param int $drupal_version
-   *   The version of Drupal we're getting the migrations for.
-   *
-   * @return \Drupal\migrate\Plugin\MigrationInterface[]
-   *   The migrations for import.
-   */
-  protected function getMigrations($database_state_key, $drupal_version) {
-    $version_tag = 'Drupal ' . $drupal_version;
-    $plugin_manager = \Drupal::service('plugin.manager.migration');
-    /** @var \Drupal\migrate\Plugin\Migration[] $all_migrations */
-    $all_migrations = $plugin_manager->createInstancesByTag($version_tag);
-    $migrations = [];
-    foreach ($all_migrations as $migration) {
-      try {
-        // @todo https://drupal.org/node/2681867 We should be able to validate
-        //   the entire migration at this point.
-        $source_plugin = $migration->getSourcePlugin();
-        if ($source_plugin instanceof RequirementsInterface) {
-          $source_plugin->checkRequirements();
-        }
-        $destination_plugin = $migration->getDestinationPlugin();
-        if ($destination_plugin instanceof RequirementsInterface) {
-          $destination_plugin->checkRequirements();
-        }
-        $migrations[] = $migration;
-      }
-      catch (RequirementsException $e) {
-        // Migrations which are not applicable given the source and destination
-        // site configurations (e.g., what modules are enabled) will be silently
-        // ignored.
-      }
-    }
-
-    return $migrations;
-  }
-
-  /**
-   * Determines what version of Drupal the source database contains.
-   *
-   * @param \Drupal\Core\Database\Connection $connection
-   *   The database connection object.
-   *
-   * @return int|FALSE
-   *   An integer representing the major branch of Drupal core (e.g. '6' for
-   *   Drupal 6.x), or FALSE if no valid version is matched.
-   */
-  protected function getLegacyDrupalVersion(Connection $connection) {
-    // Don't assume because a table of that name exists, that it has the columns
-    // we're querying. Catch exceptions and report that the source database is
-    // not Drupal.
-    // Drupal 5/6/7 can be detected by the schema_version in the system table.
-    if ($connection->schema()->tableExists('system')) {
-      try {
-        $version_string = $connection
-          ->query('SELECT schema_version FROM {system} WHERE name = :module', [':module' => 'system'])
-          ->fetchField();
-        if ($version_string && $version_string[0] == '1') {
-          if ((int) $version_string >= 1000) {
-            $version_string = '5';
-          }
-          else {
-            $version_string = FALSE;
-          }
-        }
-      }
-      catch (\PDOException $e) {
-        $version_string = FALSE;
-      }
-    }
-    // For Drupal 8 (and we're predicting beyond) the schema version is in the
-    // key_value store.
-    elseif ($connection->schema()->tableExists('key_value')) {
-      $result = $connection
-        ->query("SELECT value FROM {key_value} WHERE collection = :system_schema  and name = :module", [':system_schema' => 'system.schema', ':module' => 'system'])
-        ->fetchField();
-      $version_string = unserialize($result);
-    }
-    else {
-      $version_string = FALSE;
-    }
-
-    return $version_string ? substr($version_string, 0, 1) : FALSE;
-  }
+  use MigrationConfigurationTrait;
 
 }

core/modules/migrate_drupal/src/Plugin/MigrateCckFieldPluginManager.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace Drupal\migrate_drupal\Plugin;
+
+use Drupal\Component\Plugin\Exception\PluginNotFoundException;
+use Drupal\migrate\Plugin\MigratePluginManager;
+use Drupal\migrate\Plugin\MigrationInterface;
+
+/**
+ * Plugin manager for migrate cckfield plugins.
+ *
+ * @see \Drupal\migrate_drupal\Plugin\MigrateCckFieldInterface
+ * @see \Drupal\migrate\Annotation\MigrateCckField
+ * @see plugin_api
+ *
+ * @ingroup migration
+ */
+class MigrateCckFieldPluginManager extends MigratePluginManager {
+
+  /**
+   * The default version of core to use for cck field plugins.
+   *
+   * These plugins were initially only built and used for Drupal 6 fields.
+   * Having been extended for Drupal 7 with a "core" annotation, we fall back to
+   * Drupal 6 where none exists.
+   */
+  const DEFAULT_CORE_VERSION = 6;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function createInstance($field_type, array $configuration = array(), MigrationInterface $migration = NULL) {
+    $core = static::DEFAULT_CORE_VERSION;
+    if (!empty($configuration['core'])) {
+      $core = $configuration['core'];
+    }
+    elseif (!empty($migration->getPluginDefinition()['migration_tags'])) {
+      foreach ($migration->getPluginDefinition()['migration_tags'] as $tag) {
+        if ($tag == 'Drupal 7') {
+          $core = 7;
+        }
+      }
+    }
+
+    foreach ($this->getDefinitions() as $plugin_id => $definition) {
+      if (in_array($core, $definition['core'])) {
+        if (array_key_exists($field_type, $definition['type_map']) || $field_type === $plugin_id) {
+          return parent::createInstance($plugin_id, $configuration, $migration);
+        }
+      }
+    }
+    throw new PluginNotFoundException($field_type);
+  }
+
+}

core/modules/migrate_drupal/src/Plugin/migrate/cckfield/CckFieldPluginBase.php

@@ -10,7 +10,7 @@ use Drupal\migrate_drupal\Plugin\MigrateCckFieldInterface;
 /**
  * The base class for all cck field plugins.
  *
- * @see \Drupal\migrate_drupal\Plugin\MigratePluginManager
+ * @see \Drupal\migrate\Plugin\MigratePluginManager
  * @see \Drupal\migrate_drupal\Annotation\MigrateCckField
  * @see \Drupal\migrate_drupal\Plugin\MigrateCckFieldInterface
  * @see plugin_api

core/modules/migrate_drupal/tests/fixtures/drupal6.php

@@ -3089,24 +3089,6 @@ $connection->schema()->createTable('content_type_page', array(
   'mysql_character_set' => 'utf8',
 ));
 
-$connection->insert('content_type_page')
-->fields(array(
-  'vid',
-  'nid',
-  'field_text_field_value',
-))
-->values(array(
-  'vid' => '1',
-  'nid' => '1',
-  'field_text_field_value' => NULL,
-))
-->values(array(
-  'vid' => '3',
-  'nid' => '1',
-  'field_text_field_value' => NULL,
-))
-->execute();
-
 $connection->schema()->createTable('content_type_story', array(
   'fields' => array(
     'nid' => array(
@@ -3420,9 +3402,9 @@ $connection->insert('content_type_story')
   'field_test_three_value' => '101.00',
   'field_test_identical1_value' => NULL,
   'field_test_identical2_value' => NULL,
-  'field_test_link_url' => 'http://www.example.com/buy-one-upon-a-time',
+  'field_test_link_url' => 'node/10',
   'field_test_link_title' => 'Buy it now',
-  'field_test_link_attributes' => 'a:1:{s:6:"target";s:6:"_blank";}',
+  'field_test_link_attributes' => 's:32:"a:1:{s:6:"target";s:6:"_blank";}";',
   'field_test_date_value' => NULL,
   'field_test_datestamp_value' => NULL,
   'field_test_datetime_value' => NULL,
@@ -45551,6 +45533,14 @@ $connection->insert('variable')
   'name' => 'language_content_type_article',
   'value' => 's:1:"2";',
 ))
+->values(array(
+  'name' => 'language_content_type_employee',
+  'value' => 's:1:"2";',
+))
+->values(array(
+  'name' => 'i18n_lock_node_article',
+  'value' => 'i:1;',
+))
 ->values(array(
   'name' => 'language_count',
   'value' => 'i:11;',

core/modules/migrate_drupal/tests/fixtures/drupal7.php

@@ -40789,7 +40789,7 @@ $connection->insert('users')
 ->values(array(
   'uid' => '2',
   'name' => 'Odo',
-  'pass' => '$S$DZ4P7zZOh92vgrgZDBbv8Pu6lQB337OJ1wsOy21602G4A5F7.M9K',
+  'pass' => '$S$DGFZUE.FhrXbe4y52eC7p0ZVRGD/gOPtVctDlmC89qkujnBokAlJ',
   'mail' => 'odo@local.host',
   'theme' => '',
   'signature' => '',
@@ -41322,6 +41322,10 @@ $connection->insert('variable')
   'name' => 'language_content_type_test_content_type',
   'value' => 's:1:"0";',
 ))
+->values(array(
+  'name' => 'i18n_node_options_blog',
+  'value' => 'a:2:{i:0;s:8:"required";i:1;s:4:"lock";}',
+))
 ->values(array(
   'name' => 'language_count',
   'value' => 'i:2;',

core/modules/migrate_drupal/tests/modules/migrate_cckfield_plugin_manager_test/migrate_cckfield_plugin_manager_test.info.yml

@@ -0,0 +1,6 @@
+name: 'Migrate cck field plugin manager test'
+type: module
+description: 'Example module demonstrating the cck field plugin manager in the Migrate API.'
+package: Testing
+version: VERSION
+core: 8.x

core/modules/migrate_drupal/tests/modules/migrate_cckfield_plugin_manager_test/src/Plugin/migrate/cckfield/D6FileField.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Drupal\migrate_cckfield_plugin_manager_test\Plugin\migrate\cckfield;
+
+use Drupal\migrate_drupal\Plugin\migrate\cckfield\CckFieldPluginBase;
+use Drupal\migrate\Plugin\MigrationInterface;
+
+/**
+ * @MigrateCckField(
+ *   id = "d6_file",
+ *   core = {6},
+ *   type_map = {
+ *     "file" = "file"
+ *   }
+ * )
+ */
+class D6FileField extends CckFieldPluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldFormatterMap() {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function processCckFieldValues(MigrationInterface $migration, $field_name, $data) {}
+
+}

core/modules/migrate_drupal/tests/modules/migrate_cckfield_plugin_manager_test/src/Plugin/migrate/cckfield/D6NoCoreVersionSpecified.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Drupal\migrate_cckfield_plugin_manager_test\Plugin\migrate\cckfield;
+
+use Drupal\migrate_drupal\Plugin\migrate\cckfield\CckFieldPluginBase;
+use Drupal\migrate\Plugin\MigrationInterface;
+
+/**
+ * @MigrateCckField(
+ *   id = "d6_no_core_version_specified"
+ * )
+ */
+class D6NoCoreVersionSpecified extends CckFieldPluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldFormatterMap() {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function processCckFieldValues(MigrationInterface $migration, $field_name, $data) {}
+
+}

core/modules/migrate_drupal/tests/src/Kernel/MigrateCckFieldPluginManagerTest.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Drupal\Tests\migrate_drupal\Kernel;
+
+use Drupal\Component\Plugin\Exception\PluginNotFoundException;
+
+/**
+ * Tests the cck field plugin manager.
+ *
+ * @group migrate_drupal
+ */
+class MigrateCckFieldPluginManagerTest extends MigrateDrupalTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = array('system', 'user', 'field', 'migrate_drupal', 'options', 'file', 'text', 'migrate_cckfield_plugin_manager_test');
+
+  /**
+   * Tests that the correct MigrateCckField plugins are used.
+   */
+  public function testPluginSelection() {
+    $plugin_manager = \Drupal::service('plugin.manager.migrate.cckfield');
+
+    $this->assertIdentical('Drupal\\file\\Plugin\\migrate\\cckfield\\d6\\FileField', get_class($plugin_manager->createInstance('filefield', ['core' => 6])));
+
+    try {
+      // If this test passes, createInstance will raise a
+      // PluginNotFoundException and we'll never reach fail().
+      $plugin_manager->createInstance('filefield', ['core' => 7]);
+      $this->fail('Expected Drupal\Component\Plugin\Exception\PluginNotFoundException.');
+    }
+    catch (PluginNotFoundException $e) {
+      $this->assertIdentical($e->getMessage(), "Plugin ID 'filefield' was not found.");
+    }
+
+    $this->assertIdentical('Drupal\\file\\Plugin\\migrate\\cckfield\\d7\\ImageField', get_class($plugin_manager->createInstance('image', ['core' => 7])));
+    $this->assertIdentical('Drupal\\file\\Plugin\\migrate\\cckfield\\d7\\FileField', get_class($plugin_manager->createInstance('file', ['core' => 7])));
+    $this->assertIdentical('Drupal\\migrate_cckfield_plugin_manager_test\\Plugin\\migrate\\cckfield\\D6FileField', get_class($plugin_manager->createInstance('file', ['core' => 6])));
+
+    $this->assertIdentical('Drupal\\text\\Plugin\\migrate\\cckfield\\TextField', get_class($plugin_manager->createInstance('text', ['core' => 6])));
+    $this->assertIdentical('Drupal\\text\\Plugin\\migrate\\cckfield\\TextField', get_class($plugin_manager->createInstance('text', ['core' => 7])));
+
+    // Test fallback when no core version is specified.
+    $this->assertIdentical('Drupal\\migrate_cckfield_plugin_manager_test\\Plugin\\migrate\\cckfield\\D6NoCoreVersionSpecified', get_class($plugin_manager->createInstance('d6_no_core_version_specified', ['core' => 6])));
+
+    try {
+      // If this test passes, createInstance will raise a
+      // PluginNotFoundException and we'll never reach fail().
+      $plugin_manager->createInstance('d6_no_core_version_specified', ['core' => 7]);
+      $this->fail('Expected Drupal\Component\Plugin\Exception\PluginNotFoundException.');
+    }
+    catch (PluginNotFoundException $e) {
+      $this->assertIdentical($e->getMessage(), "Plugin ID 'd6_no_core_version_specified' was not found.");
+    }
+  }
+
+}

core/modules/migrate_drupal/tests/src/Kernel/d6/MigrateDrupal6TestBase.php

@@ -28,7 +28,14 @@ abstract class MigrateDrupal6TestBase extends MigrateDrupalTestBase {
    */
   protected function setUp() {
     parent::setUp();
-    $this->loadFixture( __DIR__ . '/../../../fixtures/drupal6.php');
+    $this->loadFixture($this->getFixtureFilePath());
+  }
+
+  /**
+   * Gets the path to the fixture file.
+   */
+  protected function getFixtureFilePath() {
+    return __DIR__ . '/../../../fixtures/drupal6.php';
   }
 
   /**

core/modules/migrate_drupal/tests/src/Kernel/d7/MigrateDrupal7TestBase.php

@@ -14,7 +14,14 @@ abstract class MigrateDrupal7TestBase extends MigrateDrupalTestBase {
    */
   protected function setUp() {
     parent::setUp();
-    $this->loadFixture(__DIR__ . '/../../../fixtures/drupal7.php');
+    $this->loadFixture($this->getFixtureFilePath());
+  }
+
+  /**
+   * Gets the path to the fixture file.
+   */
+  protected function getFixtureFilePath() {
+    return __DIR__ . '/../../../fixtures/drupal7.php';
   }
 
 }