created regression test for #5614

tests/end-to-end/regression/5614.phpt

@@ -0,0 +1,20 @@
+--TEST--
+https://github.com/sebastianbergmann/phpunit/issues/5614
+--FILE--
+<?php declare(strict_types=1);
+$_SERVER['argv'][] = '--do-not-cache-result';
+$_SERVER['argv'][] = '--no-configuration';
+$_SERVER['argv'][] = __DIR__ . '/5614/Issue5614Test.php';
+
+require_once __DIR__ . '/../../bootstrap.php';
+(new PHPUnit\TextUI\Application)->run($_SERVER['argv']);
+--EXPECTF--
+PHPUnit %s by Sebastian Bergmann and contributors.
+
+Runtime: %s
+
+.                                                                   1 / 1 (100%)
+
+Time: %s, Memory: %s MB
+
+OK (1 test, 1 assertion)

tests/end-to-end/regression/5614/Issue5614Test.php

@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\TestFixture\Issue5614;
+
+use PHPUnit\Framework\TestCase;
+
+final class Issue5614Test extends TestCase
+{
+    public static function provideRecursiveArray(): iterable {
+        $array = [];
+        $array[0] = &$array;
+        yield [$array];
+    }
+
+    /**
+     * @dataProvider provideRecursiveArray
+     */
+    public function testRecursiveArray(array $array): void {
+        $this->assertTrue(true);
+    }
+}