diff --git a/core/modules/migrate_drupal/lib/Drupal/migrate_drupal/Plugin/migrate/source/d6/Language.php b/core/modules/migrate_drupal/lib/Drupal/migrate_drupal/Plugin/migrate/source/d6/Language.php
index 5d78fb7..85e0e0a 100644
--- a/core/modules/migrate_drupal/lib/Drupal/migrate_drupal/Plugin/migrate/source/d6/Language.php
+++ b/core/modules/migrate_drupal/lib/Drupal/migrate_drupal/Plugin/migrate/source/d6/Language.php
@@ -52,4 +52,4 @@ public function checkRequirements() {
     return $this->moduleExists('locale');
   }
 
-} 
\ No newline at end of file
+}
diff --git a/core/modules/migrate_drupal/tests/Drupal/migrate_drupal/Tests/source/d6/LanguageSourceTest.php b/core/modules/migrate_drupal/tests/Drupal/migrate_drupal/Tests/source/d6/LanguageSourceTest.php
new file mode 100644
index 0000000..975aff4
--- /dev/null
+++ b/core/modules/migrate_drupal/tests/Drupal/migrate_drupal/Tests/source/d6/LanguageSourceTest.php
@@ -0,0 +1,133 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\migrate_drupal\Tests\source\d6\LanguageSourceTest.
+ */
+
+namespace Drupal\migrate_drupal\Tests\source\d6;
+
+use Drupal\migrate\Tests\MigrateSqlSourceTestCase;
+
+/**
+ * Tests language migration from D6 to D8.
+ *
+ * @group migrate_drupal
+ * @group Drupal
+ */
+class LanguageSourceTest extends MigrateSqlSourceTestCase {
+
+  // The plugin system is not working during unit testing so the source plugin
+  // class needs to be manually specified.
+  const PLUGIN_CLASS = 'Drupal\migrate_drupal\Plugin\migrate\source\d6\Language';
+
+  // The fake Migration configuration entity.
+  protected $migrationConfiguration = array(
+    // The ID of the entity, can be any string.
+    'id' => 'test',
+    // Leave it empty for now.
+    'idlist' => array(),
+    // This needs to be the identifier of the actual key: cid for comment, nid
+    // for node and so on.
+    'source' => array(
+      'plugin' => 'drupal6_language',
+    ),
+    'sourceIds' => array(
+      'language' => array(
+        // This is where the field schema would go but for now we need to
+        // specify the table alias for the key. Most likely this will be the
+        // same as BASE_ALIAS.
+        'alias' => 'l',
+      ),
+    ),
+    'destinationIds' => array(
+      'id' => array(
+        // This is where the field schema would go.
+      ),
+    ),
+  );
+
+  protected $expectedResults = array(
+    array(
+      'language' => 'es',
+      'name' => 'Spanish',
+      'native' => 'Español',
+      'direction' => 0,
+      'enabled' => 1,
+      'plurals' => 0,
+      'formula' => '',
+      'domain' => '',
+      'prefix' => 'es',
+      'weight' => -3,
+      'javascript' => '',
+    ),
+    array(
+      'language' => 'en',
+      'name' => 'English',
+      'native' => 'English',
+      'direction' => 0,
+      'enabled' => 1,
+      'plurals' => 0,
+      'formula' => '',
+      'domain' => '',
+      'prefix' => '',
+      'weight' => 0,
+      'javascript' => '',
+    ),
+  );
+
+  protected $databaseContents = array(
+    'languages' => array(
+      array(
+        'language' => 'es',
+        'name' => 'Spanish',
+        'native' => 'Español',
+        'direction' => 0,
+        'enabled' => 1,
+        'plurals' => 0,
+        'formula' => '',
+        'domain' => '',
+        'prefix' => 'es',
+        'weight' => -3,
+        'javascript' => '',
+      ),
+      array(
+        'language' => 'en',
+        'name' => 'English',
+        'native' => 'English',
+        'direction' => 0,
+        'enabled' => 1,
+        'plurals' => 0,
+        'formula' => '',
+        'domain' => '',
+        'prefix' => '',
+        'weight' => 0,
+        'javascript' => '',
+      ),
+    ));
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'D6 language source functionality',
+      'description' => 'Tests D6 language source plugin.',
+      'group' => 'Migrate Drupal',
+    );
+  }
+}
+
+
+use Drupal\Core\Database\Connection;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\migrate_drupal\Plugin\migrate\source\d6\Language;
+
+class TestLanguage extends Language {
+  function setDatabase(Connection $database) {
+    $this->database = $database;
+  }
+  function setModuleHandler(ModuleHandlerInterface $module_handler) {
+    $this->moduleHandler = $module_handler;
+  }
+}