From 6f544620706d1d77f8068d920687d1653e25d24a Mon Sep 17 00:00:00 2001
From: Nuno Maduro <enunomaduro@gmail.com>
Date: Tue, 19 Sep 2023 11:27:09 +0100
Subject: [PATCH] fix: sync wrapper runner with paratest

---
 src/Plugins/Parallel/Paratest/WrapperRunner.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Plugins/Parallel/Paratest/WrapperRunner.php b/src/Plugins/Parallel/Paratest/WrapperRunner.php
index 8b75bc4c..0c955574 100644
--- a/src/Plugins/Parallel/Paratest/WrapperRunner.php
+++ b/src/Plugins/Parallel/Paratest/WrapperRunner.php
@@ -254,11 +254,11 @@ private function startWorker(int $token): WrapperWorker
 
     private function destroyWorker(int $token): void
     {
-        // Mutation Testing tells us that the following `unset()` already destroys
-        // the `WrapperWorker`, which destroys the Symfony's `Process`, which
-        // automatically calls `Process::stop` within `Process::__destruct()`.
-        // But we prefer to have an explicit stops.
         $this->workers[$token]->stop();
+        // We need to wait for ApplicationForWrapperWorker::end to end
+        while ($this->workers[$token]->isRunning()) {
+            usleep(self::CYCLE_SLEEP);
+        }
 
         unset($this->workers[$token]);
     }