From 63412b81965e1cce60d678147a80c30f5df8cf46 Mon Sep 17 00:00:00 2001
From: Aydin Hassan <aydin@hotmail.co.uk>
Date: Sun, 6 Jun 2021 10:06:19 +0100
Subject: [PATCH] Add void type

---
 src/TestUtils/WorkshopExerciseTest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/TestUtils/WorkshopExerciseTest.php b/src/TestUtils/WorkshopExerciseTest.php
index 69de5829..7ceb12db 100644
--- a/src/TestUtils/WorkshopExerciseTest.php
+++ b/src/TestUtils/WorkshopExerciseTest.php
@@ -60,7 +60,7 @@ private function getExercise(): ExerciseInterface
             ->findByClassName($this->getExerciseClass());
     }
 
-    public function runExercise(string $submissionFile)
+    public function runExercise(string $submissionFile): void
     {
         $exercise = $this->getExercise();