Add test

Author: deguif

tests/Doctrine/Tests/Common/Proxy/Php8MagicCloneClass.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Doctrine\Tests\Common\Proxy;
+
+class Php8MagicCloneClass
+{
+    public function __clone(): void
+    {
+    }
+}

tests/Doctrine/Tests/Common/Proxy/ProxyGeneratorTest.php

@@ -405,6 +405,26 @@ public function testFinalClassThrowsException()
         $proxyGenerator->generateProxyClass($this->createClassMetadata(FinalClass::class, []));
     }
 
+    /**
+     * @requires PHP >= 8.0.0
+     */
+    public function testPhp8CloneWithVoidReturnType()
+    {
+        $className = Php8MagicCloneClass::class;
+
+        if ( ! class_exists('Doctrine\Tests\Common\ProxyProxy\__CG__\Php8MagicCloneClass', false)) {
+            $metadata = $this->createClassMetadata($className, ['id']);
+
+            $proxyGenerator = new ProxyGenerator(__DIR__ . '/generated', __NAMESPACE__ . 'Proxy');
+            $this->generateAndRequire($proxyGenerator, $metadata);
+        }
+
+        self::assertStringContainsString(
+            'public function __clone(): void',
+            file_get_contents(__DIR__ . '/generated/__CG__DoctrineTestsCommonProxyPhp8MagicCloneClass.php')
+        );
+    }
+
     /**
      * @requires PHP >= 8.0.0
      */