From f1ec281230aac5806a84c15425f7a29e01c7adf5 Mon Sep 17 00:00:00 2001
From: Jeff Frontz <jhf@blockstream.io>
Date: Wed, 25 Jul 2018 16:23:59 -0400
Subject: [PATCH] Explicitly destroy zmq object when exiting without actually
 using it

---
 qa/rpc-tests/zmq_test.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/qa/rpc-tests/zmq_test.py b/qa/rpc-tests/zmq_test.py
index eecf506b87..cad6e35577 100755
--- a/qa/rpc-tests/zmq_test.py
+++ b/qa/rpc-tests/zmq_test.py
@@ -34,6 +34,9 @@ class ZMQTest (BitcoinTestFramework):
             ])
 
     def run_test(self):
+        # destroy() required for ubuntu docker hang workaround when
+        # exiting without actually messaging (remove with resolution of #TODO)
+        self.zmqContext.destroy(linger=0)
         return #TODO
         self.sync_all()