From 5db7c77def326264579f8db3238372b0351407f2 Mon Sep 17 00:00:00 2001
From: Henry Gessau <gessau@cisco.com>
Date: Mon, 4 Aug 2014 08:47:08 -0400
Subject: [PATCH] Add a tox test environment for random hashseed testing

The newer versions of tox by default enable a random PYTHONHASHSEED. However,
this breaks many Neutron unit tests, so PYTHONHASHSEED=0 is currently hard-
coded for Neutron's unit test environments.

We want to clean up the unit test cases that break with a random hashseed
(there are many). To be able to find the broken tests and then verify them,
we need to have an easy way of enabling random hashseed testing.

Partial-bug: #1348818

Change-Id: I51f05cdfa9f8728baabaf315b71e5defb26426b1
---
 tox.ini | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tox.ini b/tox.ini
index 9d47907eca6..da3ebf1b35f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,6 +15,12 @@ deps = -r{toxinidir}/requirements.txt
 commands =
   python -m neutron.openstack.common.lockutils python setup.py testr --slowest --testr-args='{posargs}'
 
+[testenv:hashtest]
+# This is the same as default environment, but with a random PYTHONHASHSEED.
+# You can also specify a specific hashseed (for test repeatability) as follows:
+#   tox --hashseed 1235130571 -e hashtest
+setenv = VIRTUAL_ENV={envdir}
+
 [testenv:functional]
 setenv = OS_TEST_PATH=./neutron/tests/functional
 commands =