[Tests] Update test

Author: lindyhopchris

docs/upgrade.md

@@ -160,9 +160,9 @@ In our `Validation\AbstractValidators` class we have renamed the following two p
 
 We have also simplified our validator classes into a single class. The following classes have
 been removed:
-- `Validation\AbstractValidator`: use `Factory\Factory::createValidator()` or extend `Validation\Validator`.
-- `Validation\ResourceValidator`: use `Factory\Factory::createResourceValidator()`.
-- `Validation\QueryValidator`: use `Factory\Factory::createQueryValidator()`.
+- `Validation\AbstractValidator`: use `Factories\Factory::createValidator()` or extend `Validation\Validator`.
+- `Validation\ResourceValidator`: use `Factories\Factory::createResourceValidator()`.
+- `Validation\QueryValidator`: use `Factories\Factory::createQueryValidator()`.
 
 ## 1.0.0-beta.5 to 1.0.0-beta.6
 

tests/dummy/app/JsonApi/Posts/Validators.php

@@ -76,7 +76,14 @@ class Validators extends AbstractValidators
      * @var array
      */
     protected $deleteMessages = [
-        'no_comments.accepted' => 'Cannot delete a post with comments.',
+        'accepted' => 'Cannot delete a post with :attribute.',
+    ];
+
+    /**
+     * @var array
+     */
+    protected $deleteAttributes = [
+        'no_comments' => 'comments',
     ];
 
     /**