From cd6a37e53b8dfdad61efafedddb599e950bffc7c Mon Sep 17 00:00:00 2001
From: Sam Hemelryk <sam@moodle.com>
Date: Thu, 9 Oct 2014 09:12:59 +1300
Subject: [PATCH] MDL-47608 cachestore_mongo: fixed unit test error

If you configured your site to run mongo unit tests and had
the mongo extension and backend installed but did not have the
mongo service running you would get a fatal error when running
the unit tests.
That problem has been fixed by checking the mongo test instance
is ready before returning it.
---
 cache/stores/mongodb/lib.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cache/stores/mongodb/lib.php b/cache/stores/mongodb/lib.php
index 5bd2e84ac16..baf684a3cce 100644
--- a/cache/stores/mongodb/lib.php
+++ b/cache/stores/mongodb/lib.php
@@ -556,6 +556,9 @@ class cachestore_mongodb extends cache_store implements cache_is_configurable {
         }
 
         $store = new cachestore_mongodb('Test mongodb', $configuration);
+        if (!$store->is_ready()) {
+            return false;
+        }
         $store->initialise($definition);
 
         return $store;