From aeb40454161923ba5a6e065532d7d7a74ce1e008 Mon Sep 17 00:00:00 2001
From: Tristan Cacqueray <tdecacqu@redhat.com>
Date: Thu, 18 Jan 2018 01:24:09 +0000
Subject: [PATCH] zk: check for client in properties

This change prevents this exception happening randomly in test teardown:
AttributeError: 'NoneType' object has no attribute 'state'

Change-Id: If1eff3038f5d98d5e9f28fba82d881e0f987c266
---
 nodepool/zk.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/nodepool/zk.py b/nodepool/zk.py
index ca894cd16..dc5cbcaa9 100755
--- a/nodepool/zk.py
+++ b/nodepool/zk.py
@@ -715,14 +715,20 @@ class ZooKeeper(object):
 
     @property
     def connected(self):
+        if self.client is None:
+            return False
         return self.client.state == KazooState.CONNECTED
 
     @property
     def suspended(self):
+        if self.client is None:
+            return True
         return self.client.state == KazooState.SUSPENDED
 
     @property
     def lost(self):
+        if self.client is None:
+            return True
         return self.client.state == KazooState.LOST
 
     @property