From 74c96851d1c4d283b241d668e7798a171944d335 Mon Sep 17 00:00:00 2001
From: Roman Martinuk <romanmartinuk@gmail.com>
Date: Sun, 14 Mar 2021 20:58:23 +0300
Subject: [PATCH] singleton fix visible __wakeup()

1) DesignPatterns\Creational\Singleton\Tests\SingletonTest::testUniqueness
The magic method DesignPatterns\Creational\Singleton\Singleton::__wakeup() must have public visibility

/app/Creational/Singleton/Singleton.php:39
/app/Creational/Singleton/Tests/SingletonTest.php:12

ERRORS!
---
 Creational/Singleton/Singleton.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Creational/Singleton/Singleton.php b/Creational/Singleton/Singleton.php
index c7c0976..86b8538 100644
--- a/Creational/Singleton/Singleton.php
+++ b/Creational/Singleton/Singleton.php
@@ -2,6 +2,8 @@
 
 namespace DesignPatterns\Creational\Singleton;
 
+use Exception;
+
 final class Singleton
 {
     private static ?Singleton $instance = null;
@@ -36,7 +38,8 @@ final class Singleton
     /**
      * prevent from being unserialized (which would create a second instance of it)
      */
-    private function __wakeup()
+    public function __wakeup()
     {
+        throw new Exception("Cannot unserialize singleton");
     }
 }