From d9038197c285e77a1fd8d6f1172b90b838c42070 Mon Sep 17 00:00:00 2001
From: Chi <Chi@556138.no-reply.drupal.org>
Date: Mon, 1 Oct 2018 15:33:04 +0500
Subject: [PATCH] Fix tests

---
 library_manager.module | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library_manager.module b/library_manager.module
index 77237c4..07ee69a 100644
--- a/library_manager.module
+++ b/library_manager.module
@@ -84,7 +84,8 @@ function library_manager_build_libraries() {
 
       $library_path = $libraries_path . '/' . $definition->id();
       if (file_exists($library_path)) {
-        file_unmanaged_delete_recursive($library_path);
+        // The files can be removed in other thread when tests are running.
+        @file_unmanaged_delete_recursive($library_path);
       }
 
       $library_info = [];
-- 
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