commit 46344fa1b2d2cdc32f1691b80da1cc4d3587cc99
Author: Klaus Purer <klaus.purer@gmail.com>
Date:   Thu Dec 13 11:37:24 2012 +0100

    Implemented test to delete properties when updating the entity.

diff --git a/core/modules/rest/lib/Drupal/rest/Tests/CreateTest.php b/core/modules/rest/lib/Drupal/rest/Tests/CreateTest.php
index f5ef159..82f9685 100644
--- a/core/modules/rest/lib/Drupal/rest/Tests/CreateTest.php
+++ b/core/modules/rest/lib/Drupal/rest/Tests/CreateTest.php
@@ -63,8 +63,9 @@ public function testCreate() {
     // entity references is implemented.
     unset($entity_values['user_id']);
     foreach ($entity_values as $property => $value) {
-      $actual_value = $loaded_entity->get($property);
-      $this->assertEqual($value, $actual_value->value, 'Created property ' . $property . ' expected: ' . $value . ', actual: ' . $actual_value->value);
+      $actual_value = $loaded_entity->{$property}->value;
+      $create_value = $entity->{$property}->value;
+      $this->assertEqual($create_value, $actual_value, 'Created property ' . $property . ' expected: ' . $create_value . ', actual: ' . $actual_value);
     }
 
     // Try to create an entity without proper permissions.
diff --git a/core/modules/rest/lib/Drupal/rest/Tests/RESTTestBase.php b/core/modules/rest/lib/Drupal/rest/Tests/RESTTestBase.php
index 3640e48..78803c8 100644
--- a/core/modules/rest/lib/Drupal/rest/Tests/RESTTestBase.php
+++ b/core/modules/rest/lib/Drupal/rest/Tests/RESTTestBase.php
@@ -126,7 +126,11 @@ protected function entityCreate($entity_type) {
   protected function entityValues($entity_type) {
     switch ($entity_type) {
       case 'entity_test':
-        return array('name' => $this->randomName(), 'user_id' => 1);
+        return array(
+          'name' => $this->randomName(),
+          'user_id' => 1,
+          'field_test_text' => array(0 => array('value' => $this->randomString())),
+        );
       case 'node':
         return array('title' => $this->randomString());
       case 'user':
diff --git a/core/modules/rest/lib/Drupal/rest/Tests/UpdateTest.php b/core/modules/rest/lib/Drupal/rest/Tests/UpdateTest.php
index accf33d..1340d79 100644
--- a/core/modules/rest/lib/Drupal/rest/Tests/UpdateTest.php
+++ b/core/modules/rest/lib/Drupal/rest/Tests/UpdateTest.php
@@ -45,32 +45,42 @@ public function testUpdate() {
     $this->drupalLogin($account);
 
     // Create an entity and save it to the database.
-    $entity_values = $this->entityValues($entity_type);
-    $entity = entity_create($entity_type, $entity_values);
+    $entity = $this->entityCreate($entity_type);
     $entity->save();
 
-    // Create a second set of entity values that will overwrite the original.
+    // Create a second entity that will overwrite the original.
     $update_values = $this->entityValues($entity_type);
-    // @todo Remove the user reference field for now until deserialization for
-    // entity references is implemented.
-    unset($update_values['user_id']);
-    // Overwrite the properties with the updated values.
-    foreach ($update_values as $property => $value) {
-      $entity->set($property, $value);
-    }
+    $update_entity = entity_create($entity_type, $update_values);
+    // Copy the identifier properties over from the original.
+    $update_entity->uuid->value = $entity->uuid();
+    $update_entity->id->value = $entity->id();
 
-    $serialized = $serializer->serialize($entity, 'drupal_jsonld');
+    $serialized = $serializer->serialize($update_entity, 'drupal_jsonld');
     // Update the entity over the web API.
     $this->httpRequest('entity/' . $entity_type . '/' . $entity->id(), 'PUT', $serialized, 'application/vnd.drupal.ld+json');
-    $this->assertResponse('200', 'HTTP response code is correct.');
+    $this->assertResponse(200);
 
-    // Re-load updated entity from the database.
+    // Re-load the updated entity from the database.
     $entity = entity_load($entity_type, $entity->id(), TRUE);
+    // @todo Don't check the user reference field for now until deserialization
+    // for entity references is implemented.
+    unset($update_values['user_id']);
     foreach ($update_values as $property => $value) {
-      $actual_value = $entity->get($property);
-      $this->assertEqual($value, $actual_value->value, 'Updated property ' . $property . ' expected: ' . $value . ', actual: ' . $actual_value->value);
+      $update_value = $update_entity->{$property}->value;
+      $stored_value = $entity->{$property}->value;
+      $this->assertEqual($stored_value, $update_value, 'Updated property ' . $property . ' expected: ' . $update_value . ', actual: ' . $stored_value);
     }
 
+    // Try to delete a property.
+    unset($update_entity->field_test_text);
+    $serialized = $serializer->serialize($update_entity, 'drupal_jsonld');
+    $this->httpRequest('entity/' . $entity_type . '/' . $entity->id(), 'PUT', $serialized, 'application/vnd.drupal.ld+json');
+    $this->assertResponse(200);
+
+    // Re-load the updated entity from the database.
+    $entity = entity_load($entity_type, $entity->id(), TRUE);
+    $this->assertTrue($entity->field_test_text->isEmpty(), 'Property has been deleted.');
+
     // Try to update an entity without proper permissions.
     $this->drupalLogout();
     $this->httpRequest('entity/' . $entity_type . '/' . $entity->id(), 'PUT', $serialized, 'application/vnd.drupal.ld+json');