diff --git a/core/modules/system/tests/Drupal/system/Tests/Plugin/Type/MenuLocalTaskManagerTest.php b/core/modules/system/tests/Drupal/system/Tests/Plugin/Type/MenuLocalTaskManagerTest.php
index caf0598..876f03d 100644
--- a/core/modules/system/tests/Drupal/system/Tests/Plugin/Type/MenuLocalTaskManagerTest.php
+++ b/core/modules/system/tests/Drupal/system/Tests/Plugin/Type/MenuLocalTaskManagerTest.php
@@ -62,6 +62,13 @@ class MenuLocalTaskManagerTest extends UnitTestCase {
    */
   protected $factory;
 
+  /**
+   * The mocked local task plugin base class.
+   *
+   * @var \PHPUnit_Framework_MockObject_MockObject
+   */
+  protected $basePlugin;
+
   public static function getInfo() {
     return array(
       'name' => 'Local tasks manager.',
@@ -70,7 +77,6 @@ public static function getInfo() {
     );
   }
 
-
   /**
    * {@inheritdoc}
    */
@@ -83,6 +89,11 @@ protected function setUp() {
     $this->pluginDiscovery = $this->getMock('Drupal\Component\Plugin\Discovery\DiscoveryInterface');
     $this->factory = $this->getMock('Drupal\Component\Plugin\Factory\FactoryInterface');
 
+    $this->basePlugin = $this
+      ->getMockBuilder('Drupal\system\Plugin\MenuLocalTaskBase')
+      ->disableOriginalConstructor()
+      ->getMock();
+
     $this->setupLocalTaskManager();
   }
 
@@ -142,21 +153,50 @@ public function testGetLocalTasksForRouteSingleLevelTitle() {
   }
 
   /**
+   * Tests that an exception is thrown when the getTitle method is missing.
+   *
+   * @see \Drupal\system\Plugin\Type\MenuLocalTaskManager::getTitle()
+   *
+   * @expectedException \BadMethodCallException
+   */
+  public function testGetTitleException() {
+    $menu_local_task = $this->getMock('Drupal\system\Plugin\MenuLocalTaskInterface');
+    $menu_local_task->expects($this->never())
+      ->method('getTitle');
+
+    $this->manager->getTitle($menu_local_task);
+  }
+
+  /**
    * Tests the getTitle method.
    *
    * @see \Drupal\system\Plugin\Type\MenuLocalTaskManager::getTitle()
    */
   public function testGetTitle() {
-    $menu_local_task = $this->getMock('Drupal\system\Plugin\MenuLocalTaskInterface');
-    $menu_local_task->expects($this->once())
+    $this->basePlugin->expects($this->once())
       ->method('getTitle');
 
     $this->controllerResolver->expects($this->once())
       ->method('getArguments')
-      ->with($this->request, array($menu_local_task, 'getTitle'))
+      ->with($this->request, array($this->basePlugin, 'getTitle'))
       ->will($this->returnValue(array()));
 
-    $this->manager->getTitle($menu_local_task);
+    $this->manager->getTitle($this->basePlugin);
+  }
+
+  /**
+   * Tests that an exception is thrown when the getPath method is missing.
+   *
+   * @see \Drupal\system\Plugin\Type\MenuLocalTaskManager::getPath()
+   *
+   * @expectedException \BadMethodCallException
+   */
+  public function testGetPathException() {
+    $menu_local_task = $this->getMock('Drupal\system\Plugin\MenuLocalTaskInterface');
+    $menu_local_task->expects($this->never())
+      ->method('getPath');
+
+    $this->manager->getPath($menu_local_task);
   }
 
   /**
@@ -165,16 +205,15 @@ public function testGetTitle() {
    * @see \Drupal\system\Plugin\Type\MenuLocalTaskManager::getPath()
    */
   public function testGetPath() {
-    $menu_local_task = $this->getMock('Drupal\system\Plugin\MenuLocalTaskInterface');
-    $menu_local_task->expects($this->once())
+    $this->basePlugin->expects($this->once())
       ->method('getPath');
 
     $this->controllerResolver->expects($this->once())
       ->method('getArguments')
-      ->with($this->request, array($menu_local_task, 'getPath'))
+      ->with($this->request, array($this->basePlugin, 'getPath'))
       ->will($this->returnValue(array()));
 
-    $this->manager->getPath($menu_local_task);
+    $this->manager->getPath($this->basePlugin);
   }
 
   /**