add debugging for when changes-sinces fails
this test fails about once a month, even in it's current format.
It's hard to tell why at this point, so put in enough debugging so
that the next failure will let us understand what's going on.
Change-Id: I95b91faeea70536f6f4d5226cf6ebda20b93412d
diff --git a/tempest/api/compute/servers/test_list_servers_negative.py b/tempest/api/compute/servers/test_list_servers_negative.py
index bef45a7..088d3ae 100644
--- a/tempest/api/compute/servers/test_list_servers_negative.py
+++ b/tempest/api/compute/servers/test_list_servers_negative.py
@@ -188,7 +188,9 @@
# changes-since returns all instances, including deleted.
num_expected = (len(self.existing_fixtures) +
len(self.deleted_fixtures))
- self.assertEqual(num_expected, len(body['servers']))
+ self.assertEqual(num_expected, len(body['servers']),
+ "Number of servers %d is wrong in %s" %
+ (num_expected, body['servers']))
@attr(type=['negative', 'gate'])
def test_list_servers_by_changes_since_invalid_date(self):