Integration CI "passes" even if charm goes to `Error`

[ca-scribner]

#16 has integration tests that "pass" in github even though they show Error in the logs. It is expected that these tests should fail because the PR enables k8s 1.22 while the workload (still v1.4 at time of running) uses a resource that was deprecated in k8s 1.22.

I think this happens sometimes in other repos as well, possibly in kubeflow dashboards or profiles.

[ca-scribner]

I think this may be caused by both of this bug and this bug

[agathanatasha]

I am quite sure this is a libjuju bug
CI run that should had failed: https://github.com/canonical/admission-webhook-operator/runs/7309685046?check_suite_focus=true#step:5:292

steps to reproduce

1. setup microk8s to use 1.22/stable
2. deploy admission webhook juju deploy admission-webhook --channel=1.4/stable
3. start python interpreter

>>> from juju import jasyncio
>>> from juju.model import Model
>>> async def connect_current_model():
...     model = Model()
...     try:
...         # connect to the current model with the current user, per the Juju CLI
...         await model.connect()
...         print('There are {} applications'.format(len(model.applications)))
...         return model
...     except:
...         print("Failed to connect")
... 
>>> current_model = jasyncio.run(connect_current_model())
>>> current_model.state.applications['admission-webhook'].status
'active'
>>> current_model.state.units['admission-webhook/0'].agent_status
'idle'
>>> current_model.state.units['admission-webhook/0'].workload_status
'active'