From 6c583c75f9ce14c332590e34b2e97a9c3e748deb Mon Sep 17 00:00:00 2001
From: Petr Skoda <commits@skodak.org>
Date: Sat, 7 Apr 2012 19:27:49 +0200
Subject: [PATCH] MDL-32323 do lot try to acquire lock before dataroot init

---
 lib/phpunit/lib.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/phpunit/lib.php b/lib/phpunit/lib.php
index 4b8cd972145..5bd2a0b5116 100644
--- a/lib/phpunit/lib.php
+++ b/lib/phpunit/lib.php
@@ -72,6 +72,10 @@ class phpunit_util {
      */
     public static function acquire_test_lock() {
         global $CFG;
+        if (!file_exists("$CFG->phpunit_dataroot/phpunit")) {
+            // dataroot not initialised yet
+            return;
+        }
         if (!file_exists("$CFG->phpunit_dataroot/phpunit/lock")) {
             file_put_contents("$CFG->phpunit_dataroot/phpunit/lock", 'This file prevents concurrent execution of Moodle PHPUnit tests');
             phpunit_boostrap_fix_file_permissions("$CFG->phpunit_dataroot/phpunit/lock");