stable/newton AttributeError: __exit__ rackspace.tests.test_cloud_loadbalancer.LoadBalancerTest.test_check()

[Corey Bryant]

On stable/newton, the rackspace.tests.test_cloud_loadbalancer.LoadBalancerTest.test_check() test is failing with 'AttributeError: __exit__'.

Here's the full traceback: http://paste.ubuntu.com/25574958/

If I revert this patch the test no longer fails: https://review.openstack.org/#/c/432176/

It seems that the except block in _store() was dropped and likely handled this exception in the past.

[Corey Bryant (corey.bryant)]

Looking at this some more, it may just need some better mocking in the test.

It looks like 'AttributeError: __exit__' is coming from session being an object that doesn't implement a context manager (https://docs.python.org/2.7/library/stdtypes.html#context-manager-types).

Looking at the traceback, the session object comes from the context (session = context.session), and context appears to come from stack.context (self.context = stack.context). stack.context.session likely may just need to be mocked in test_check.