diff --git a/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php b/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php
index 0381cdc..9733112 100644
--- a/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php
+++ b/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php
@@ -92,7 +92,7 @@ public function getHighestWeight();
   public function getRenderer($field_name);
 
   /**
-   * Returns the entity type this display mode is used for.
+   * Returns the entity type for which this display mode is used.
    *
    * @return string
    *   The entity type id.
@@ -100,24 +100,21 @@ public function getRenderer($field_name);
   public function getTargetEntityTypeId();
 
   /**
-   * Return the view or form mode to be displayed.
+   * Returns the view or form mode to be displayed.
    *
    * @return string
    */
   public function getMode();
 
   /**
-   * Return the original view or form mode that was requested.
-   *
-   * Case of view/form modes being configured to fall back to the 'default'
-   * display).
+   * Returns the original view or form mode that was requested.
    *
    * @return string
    */
   public function getOriginalMode();
 
   /**
-   * Gets the bundle to be displayed.
+   * Returns the bundle to be displayed.
    *
    * @return string
    *   The bundle to be displayed.
diff --git a/core/tests/Drupal/Tests/Core/Config/Entity/EntityDisplayBaseTest.php b/core/tests/Drupal/Tests/Core/Config/Entity/EntityDisplayBaseTest.php
index 96ffbf7..350ed0b 100644
--- a/core/tests/Drupal/Tests/Core/Config/Entity/EntityDisplayBaseTest.php
+++ b/core/tests/Drupal/Tests/Core/Config/Entity/EntityDisplayBaseTest.php
@@ -60,4 +60,16 @@ public function testGetDisplayBundle() {
     $this->assertEquals('test', $mock->getDisplayBundle());
   }
 
+  /**
+   * @covers ::setDisplayBundle()
+   */
+  public function testSetDisplayBundle() {
+    $mock = $this->getMockForAbstractClass('\Drupal\Core\Entity\EntityDisplayBase', array(), '', FALSE);
+    $reflection = new \ReflectionProperty($mock, 'bundle');
+    $reflection->setAccessible(TRUE);
+    $mock->setDisplayBundle('test');
+    $reflection->setValue($mock, 'test');
+    $this->assertEquals('test', $reflection->getValue($mock));
+  }
+
 }