Always send auth-tag even with macaroon auth

[johnsca]

Fixes #216

[johnsca]

To test:

juju bootstrap localhost
juju change-user-password
tox -e example -- examples/connect_current_model.py

I'd like to include this in the integration tests, but it would affect every single test, so I don't think it's a good idea.

[tvansteenburgh]

Couldn't a separate controller be bootstrapped for this test?

Also what's your interpretation of the test failure. Is that a due to a change in edge juju?

[tvansteenburgh]

s/with//

[johnsca]

The tests don't do the controller bootstrapping, and depend on one already being bootstrapped, so I'm not sure how we could mark one test to be run differently. I guess a separate tox env?

The same test passed with Juju edge on on the push run. This is one of the inconsistent failures we sometimes see on Travis (others being test_scp failing / timing out, package installation failing, bootstrap failing, and store timeouts). The error is from LXD, and it seems as if the ZFS kernel module isn't enabled sometimes on Travis; I'm not sure if we could do something to ensure that it is, but it makes me wonder if there are different images that we end up running under on Travis sometimes. Restarting the job will probably make it pass.

[johnsca]

It looks like adding the password: line back to accounts.yaml is enough to get it back to working, but it would still affect other tests that are being run in parallel. Is there any way to indicate that a given test must be run on its own?