diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php b/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
index 5487e04..4443327 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
@@ -169,7 +169,13 @@ public function deleteRevision($revision_id) {
    * Implements Drupal\Core\Entity\EntityStorageControllerInterface::loadByProperties().
    */
   public function loadByProperties(array $values = array()) {
-    return array();
+    $entities = $this->load();
+    foreach ($values as $key => $value) {
+      $entities = array_filter($entities, function($entity) use ($key, $value) {
+        return $value === $entity->get($key);
+      });
+    }
+    return $entities;
   }
 
   /**
diff --git a/core/modules/block/lib/Drupal/block/BlockStorageController.php b/core/modules/block/lib/Drupal/block/BlockStorageController.php
index 80ce276..d6c547d 100644
--- a/core/modules/block/lib/Drupal/block/BlockStorageController.php
+++ b/core/modules/block/lib/Drupal/block/BlockStorageController.php
@@ -29,19 +29,6 @@ public function load(array $ids = NULL) {
   /**
    * {@inheritdoc}
    */
-  public function loadByProperties(array $values = array()) {
-    $blocks = $this->load();
-    foreach ($values as $key => $value) {
-      $blocks = array_filter($blocks, function($block) use ($key, $value) {
-        return $value === $block->get($key);
-      });
-    }
-    return $blocks;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   protected function preSave(EntityInterface $entity) {
     parent::preSave($entity);
 
diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigEntityUnitTest.php b/core/modules/config/lib/Drupal/config/Tests/ConfigEntityUnitTest.php
index 1e277b8..8be1055 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigEntityUnitTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigEntityUnitTest.php
@@ -43,6 +43,31 @@ public function testStorageControllerMethods() {
     $expected_id = 'test_id';
     $config_name = $info['config_prefix'] . '.' . $expected_id;
     $this->assertIdentical($controller::getIDFromConfigName($config_name, $info['config_prefix']), $expected_id);
+
+    // Create three entities, two with the same style.
+    $style = $this->randomName(8);
+    for ($i = 0; $i < 2; $i++) {
+      $entity = $controller->create(array(
+        'id' => $this->randomName(),
+        'label' => $this->randomString(),
+        'style' => $style,
+      ));
+      $entity->save();
+    }
+    $entity = $controller->create(array(
+      'id' => $this->randomName(),
+      'label' => $this->randomString(),
+      // Use a different length for the entity to ensure uniqueness.
+      'style' => $this->randomName(9),
+    ));
+    $entity->save();
+
+    $entities = $controller->loadByProperties();
+    $this->assertEqual(count($entities), 3, 'Three entities are loaded when no properties are specified.');
+
+    $entities = $controller->loadByProperties(array('style' => $style));
+    $this->assertEqual(count($entities), 2, 'Two entities are loaded when the style property is specified.');
+    $this->assertEqual(reset($entities)->get('style'), $style, 'The loaded entities have the style value specified.');
   }
 
 }
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/VocabularyUnitTest.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/VocabularyUnitTest.php
index 9a329f5..909cbcb 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/VocabularyUnitTest.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/VocabularyUnitTest.php
@@ -134,6 +134,19 @@ function testTaxonomyVocabularyLoadMultiple() {
     $this->assertEqual(array_shift($vocabularies)->id(), $vocabulary3->id(), 'Vocabulary loaded successfully by ID.');
     $this->assertEqual(array_shift($vocabularies)->id(), $vocabulary2->id(), 'Vocabulary loaded successfully by ID.');
     $this->assertEqual(array_shift($vocabularies)->id(), $vocabulary1->id(), 'Vocabulary loaded successfully by ID.');
+
+    // Test loading vocabularies by their properties.
+    $controller = $this->container->get('plugin.manager.entity')->getStorageController('taxonomy_vocabulary');
+    // Fetch vocabulary 1 by name.
+    $vocabulary = current($controller->loadByProperties(array('name' => $vocabulary1->name)));
+    $this->assertEqual($vocabulary->id(), $vocabulary1->id(), 'Vocabulary loaded successfully by name.');
+
+    // Fetch vocabulary 2 by name and ID.
+    $vocabulary = current($controller->loadByProperties(array(
+      'name' => $vocabulary2->name,
+      'vid' => $vocabulary2->id(),
+    )));
+    $this->assertEqual($vocabulary->id(), $vocabulary2->id(), 'Vocabulary loaded successfully by name and ID.');
   }
 
   /**