Fix missing entities returning HTTP 500 instead of a 4XX

Author: deviantintegral

exceptions/RestfulUnprocessableEntityException.php

@@ -5,7 +5,7 @@
  * Contains RestfulUnprocessableEntityException
  */
 
-class RestfulUnprocessableEntityException extends Exception {
+class RestfulUnprocessableEntityException extends RestfulException {
 
   /**
    * Defines the HTTP error code.

tests/RestfulExceptionHandleTestCase.test

@@ -5,7 +5,7 @@
  * Contains RestfulExceptionHandleTestCase
  */
 
-class RestfulExceptionHandleTestCase extends DrupalWebTestCase {
+class RestfulExceptionHandleTestCase extends RestfulCurlBaseTestCase {
 
   public static function getInfo() {
     return array(
@@ -38,4 +38,16 @@ class RestfulExceptionHandleTestCase extends DrupalWebTestCase {
     $this->assertResponse('400', 'Correct HTTP code.');
   }
 
+  /**
+   * Test when an entity is not found that a 4XX is returned instead of 500.
+   */
+  function testEntityNotFoundDelivery() {
+    $url = 'api/v1.0/articles/1';
+    $result = $this->httpRequest($url);
+    $body = drupal_json_decode($result['body']);
+    $this->assertEqual($result['code'], '422', format_string('422 status code sent for @url url.', array('@url' => $url)));
+    $this->assertTrue(strpos($result['headers'], 'application/problem+json;'), '"application/problem+json" found in invalid request.');
+    $this->assertEqual($body['title'], 'The entity ID 1 for Articles does not exist.', 'Correct error message.');
+  }
+
 }