Updated openstack/openstack
Project: openstack/python-heatclient  0126e7ab20b645a19ecd04e157ddfc73a9a207ca
null
Fix comparison with singletons

Many places in tests code use assertEqual(AA, None),
the same with True and False and negatives of such comparisons.

As comparison to singletons must use `is` operator, appropriate usage
is assertIs, assertIsNot, assertIsNone, assertIsNotNone

These assertions are provided by the `testtools` package,
so this change is not breaking backward compatibility with Python 2.6

Change-Id: I232136ce49afdb8bf78b42221454540471d12c23
Closes-Bug: #1259023