From cfd85ad4ee462abd4b64393dbba1f324cfbcecb2 Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Wed, 7 Apr 2021 15:30:57 +0100
Subject: [PATCH] UnitTestRunner:  Fix bug in File tests when multiple test
 instances are run simultaneously

---
 modules/juce_core/files/juce_File.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/juce_core/files/juce_File.cpp b/modules/juce_core/files/juce_File.cpp
index 19fb9b934a..30bef9b273 100644
--- a/modules/juce_core/files/juce_File.cpp
+++ b/modules/juce_core/files/juce_File.cpp
@@ -1097,7 +1097,10 @@ public:
 
         beginTest ("Writing");
 
-        File demoFolder (temp.getChildFile ("JUCE UnitTests Temp Folder.folder"));
+        const auto tempFolderName = "JUCE UnitTests Temp Folder "
+                                  + String::toHexString (Random::getSystemRandom().nextInt())
+                                  + ".folder";
+        File demoFolder (temp.getChildFile (tempFolderName));
         expect (demoFolder.deleteRecursively());
         expect (demoFolder.createDirectory());
         expect (demoFolder.isDirectory());