diff --git a/tests/ResponseTest.php b/tests/ResponseTest.php
index c8283b9..7076ca4 100644
--- a/tests/ResponseTest.php
+++ b/tests/ResponseTest.php
@@ -89,12 +89,18 @@ public function testErrorMethodNotAllowedStatusCodeIs405()
         $this->assertSame(405, $response['status']);
     }
 
-    public function testErrorUnwillingToProcessStatusCodeIs405()
+    public function testErrorUnwillingToProcessStatusCodeIs431()
     {
         $response = $this->response->errorUnwillingToProcess();
         $this->assertSame(431, $response['status']);
     }
 
+    public function testErrorUnprocessableStatusCodeIs422()
+    {
+        $response = $this->response->errorUnprocessable();
+        $this->assertSame(422, $response['status']);
+    }
+
     public function testWithItemReturnDataProperly()
     {
         $item = ['foo' => 'bar'];