diff --git a/test/Unit/RuleSet/AbstractRuleSetTestCase.php b/test/Unit/RuleSet/AbstractRuleSetTestCase.php
index 4f861713..8f9f761d 100644
--- a/test/Unit/RuleSet/AbstractRuleSetTestCase.php
+++ b/test/Unit/RuleSet/AbstractRuleSetTestCase.php
@@ -80,8 +80,8 @@ final public function testRuleSetDoesDoNotConfigureRulesThatAreNotBuiltIn(): voi
     final public function testRuleSetDoesNotConfigureRulesThatAreDeprecated(): void
     {
         $namesOfRulesThatAreConfiguredAndDeprecated = \array_diff(
-            self::namesOfRulesThatAreConfigured(),
-            self::namesOfRulesThatAreNotDeprecated()
+            self::namesOfRulesThatAreNotDeprecated(),
+            self::namesOfRulesThatAreConfigured()
         );
 
         self::assertEmpty($namesOfRulesThatAreConfiguredAndDeprecated, \sprintf(