diff --git a/core/modules/config/src/Tests/ConfigEntityStorageTest.php b/core/modules/config/src/Tests/ConfigEntityStorageTest.php
index 55b06ed..c1a7e0a 100644
--- a/core/modules/config/src/Tests/ConfigEntityStorageTest.php
+++ b/core/modules/config/src/Tests/ConfigEntityStorageTest.php
@@ -59,10 +59,14 @@ public function testToArray() {
     $id = 'test_1';
     // Load the original configuration entity.
     entity_create($entity_type, ['id' => $id, 'protected_property' => 'TEST'])->save();
+    /* @var $entity \Drupal\config_test\Entity\ConfigTest */
     $entity = entity_load($entity_type, $id);
 
     $array = $entity->toArray();
-    $this->assertEqual($array['protected_property'], 'TEST', 'Found protected Property on newly created entity.');
+    $this->assertEqual($array['protected_property'], 'TEST', 'Found protected Property in exported Array with wrong syntax');
+    $this->assertTrue(isset($array['protectedProperty']), 'Found protected Property in exported Array with correct syntax');
+    $this->assertEqual($entity->getProtectedProperty(), 'TEST', 'Found protected Property on newly created entity.');
+    $this->assertEqual($entity->getProtected_property(), 'TEST', 'Found protected Property on newly created entity.');
   }
 
 }
diff --git a/core/modules/config/tests/config_test/src/Entity/ConfigTest.php b/core/modules/config/tests/config_test/src/Entity/ConfigTest.php
index 9fb6ca5..0ed71f1 100644
--- a/core/modules/config/tests/config_test/src/Entity/ConfigTest.php
+++ b/core/modules/config/tests/config_test/src/Entity/ConfigTest.php
@@ -155,6 +155,14 @@ public function setEnforcedDependencies(array $dependencies) {
     return $this;
   }
 
+  public function getProtectedProperty() {
+    return $this->protectedProperty;
+  }
+
+  public function getProtected_property() {
+    return $this->protected_property;
+  }
+
   /**
    * {@inheritdoc}
    */