diff --git a/core/tests/Drupal/Tests/Component/Plugin/Factory/DefaultFactoryTest.php b/core/tests/Drupal/Tests/Component/Plugin/Factory/DefaultFactoryTest.php
index 7114a6e..a97942a 100644
--- a/core/tests/Drupal/Tests/Component/Plugin/Factory/DefaultFactoryTest.php
+++ b/core/tests/Drupal/Tests/Component/Plugin/Factory/DefaultFactoryTest.php
@@ -48,21 +48,23 @@ protected function setUp() {
   }
 
   /**
-   * Tests the getPluginClass method.
+   * Tests the createInstance method.
    *
    * @see \Drupal\Component\Plugin\DefaultFactory::getPluginClass
-   * @dataProvider providerTestGetPluginClass
+   * @see \Drupal\Component\Plugin\DefaultFactory::createInstance
+   *
+   * @dataProvider providerTestCreateInstance
    */
-  public function testGetPluginClass($plugin_id, $plugin_definition) {
+  public function testCreateInstance($plugin_id, $plugin_definition) {
     $this->discovery->expects($this->once())
       ->method('getDefinition')
       ->with($plugin_id)
       ->will($this->returnValue($plugin_definition));
-    $this->defaultFactory->setInterface('Drupal\plugin_test\Plugin\plugin_test\fruit\FruitInterface');
+    $this->defaultFactory->setInterface('\Drupal\plugin_test\Plugin\plugin_test\fruit\FruitInterface');
     $instance = $this->defaultFactory->createInstance($plugin_id, array());
 
     $this->assertInstanceOf($plugin_definition['class'], $instance);
-    $this->assertInstanceOf('Drupal\plugin_test\Plugin\plugin_test\fruit\FruitInterface', $instance);
+    $this->assertInstanceOf('\Drupal\plugin_test\Plugin\plugin_test\fruit\FruitInterface', $instance);
   }
 
   /**
@@ -71,9 +73,9 @@ public function testGetPluginClass($plugin_id, $plugin_definition) {
    * @return array
    *   An array of plugin IDs and plugin definitions.
    *
-   * @see self::testGetPluginClassWithInvalidInput
+   * @see self::testCreateInstanceWithInvalidInput
    */
-  public function providerTestGetPluginClass() {
+  public function providerTestCreateInstance() {
     return array(
       array('apple', array('class' => '\Drupal\plugin_test\Plugin\plugin_test\fruit\Apple')),
       array('banana', array('class' => '\Drupal\plugin_test\Plugin\plugin_test\fruit\Banana')),
@@ -84,14 +86,14 @@ public function providerTestGetPluginClass() {
    * Tests the getPluginClass method with invalid input.
    *
    * @expectedException \Drupal\Component\Plugin\Exception\PluginException
-   * @dataProvider providerTestGetPluginClassWithInvalidInput
+   * @dataProvider providerTestCreateInstanceWithInvalidInput
    */
-  public function testGetPluginClassWithInvalidInput($plugin_id, $plugin_definition) {
+  public function testCreateInstanceWithInvalidInput($plugin_id, $plugin_definition) {
     $this->discovery->expects($this->once())
       ->method('getDefinition')
       ->with($plugin_id)
       ->will($this->returnValue($plugin_definition));
-    $this->defaultFactory->setInterface('Drupal\plugin_test\Plugin\plugin_test\fruit\FruitInterface');
+    $this->defaultFactory->setInterface('\Drupal\plugin_test\Plugin\plugin_test\fruit\FruitInterface');
     $this->defaultFactory->createInstance($plugin_id, array());
   }
 
@@ -101,9 +103,9 @@ public function testGetPluginClassWithInvalidInput($plugin_id, $plugin_definitio
    * @return array
    *   An array of plugin IDs and plugin definitions.
    *
-   * @see self::testGetPluginClassWithInvalidInput
+   * @see self::testCreateInstanceWithInvalidInput
    */
-  public function providerTestGetPluginClassWithInvalidInput() {
+  public function providerTestCreateInstanceWithInvalidInput() {
     return array(
       // Provide no class definition.
       array('rasperry', array()),
@@ -120,7 +122,7 @@ public function providerTestGetPluginClassWithInvalidInput() {
    * @expectedException \Drupal\Component\Plugin\Exception\PluginException
    */
   public function testSetInterface() {
-    $this->defaultFactory->setInterface('Drupal\plugin_test\Plugin\plugin_test\fruit\VegetablesInterface');
+    $this->defaultFactory->setInterface('\Drupal\plugin_test\Plugin\plugin_test\fruit\VegetablesInterface');
   }
 
 }