created test for #5567

Author: ptomulik

tests/end-to-end/regression/5567.phpt

@@ -0,0 +1,32 @@
+--TEST--
+https://github.com/sebastianbergmann/phpunit/issues/5567
+--FILE--
+<?php declare(strict_types=1);
+$_SERVER['argv'][] = '--do-not-cache-result';
+$_SERVER['argv'][] = '--no-configuration';
+$_SERVER['argv'][] = __DIR__ . '/5567/Issue5567Test.php';
+
+require_once __DIR__ . '/../../bootstrap.php';
+(new PHPUnit\TextUI\Application)->run($_SERVER['argv']);
+--EXPECTF--
+PHPUnit %s by Sebastian Bergmann and contributors.
+
+Runtime: %s
+
+F                                                                   1 / 1 (100%)
+
+Time: %s, Memory: %s MB
+
+There was 1 failure:
+
+1) PHPUnit\TestFixture\Issue5567\Issue5567Test::testAnythingThatFailsWithRecursiveArray
+Failed asserting that Array &0 [
+    'self' => Array &1 [
+        'self' => Array &1,
+    ],
+] is false.
+
+%sIssue5567Test.php:%d
+
+FAILURES!
+Tests: 1, Assertions: 1, Failures: 1.

tests/end-to-end/regression/5567/Issue5567Test.php

@@ -0,0 +1,23 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\TestFixture\Issue5567;
+
+use PHPUnit\Framework\TestCase;
+
+final class Issue5567Test extends TestCase
+{
+    public function testAnythingThatFailsWithRecursiveArray(): void
+    {
+        $array         = [];
+        $array['self'] = &$array;
+
+        $this->assertFalse($array);
+    }
+}