From 74de3184ec9b5a011acff3cf46bb65db463af981 Mon Sep 17 00:00:00 2001
From: Benjamin Zikarsky <benjamin.zikarsky@joyridedating.com>
Date: Sat, 5 Feb 2022 18:06:37 +0100
Subject: [PATCH] Fix incorrect default message for exception ctor

PHP8.1+ complains about Exception not accepting `null` as the message
argument for an `Exception` constructor. This fixes it.
---
 tests/Internal/RejectedPromiseTest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/Internal/RejectedPromiseTest.php b/tests/Internal/RejectedPromiseTest.php
index 38eb3b40..028ca4dc 100644
--- a/tests/Internal/RejectedPromiseTest.php
+++ b/tests/Internal/RejectedPromiseTest.php
@@ -34,7 +34,7 @@ public function getPromiseTestAdapter(callable $canceller = null)
                     $promise = new RejectedPromise($reason);
                 }
             },
-            'settle' => function ($reason = null) use (&$promise) {
+            'settle' => function ($reason = "") use (&$promise) {
                 if (!$promise) {
                     if (!$reason instanceof Exception) {
                         $reason = new Exception($reason);