Comment 3 for bug 1695335

Tested on both LXD and AWS. There is a test case in libjuju for this at https://github.com/juju/python-libjuju/blob/49fe19ff5754ae8ce9365cd7bddbcd33f565bd69/tests/integration/test_machine.py#L10 (libjuju current has a work-around to make this test case pass, but if you comment out https://github.com/juju/python-libjuju/blob/49fe19ff5754ae8ce9365cd7bddbcd33f565bd69/juju/machine.py#L14 it will fail).

On a side note, there seems to be a difference in the info / message field for the instance-status between providers, with the LXD provider giving a message of "Ready" while the AWS provider gives a message of "ready", hence the need for normalizing it in the test (https://github.com/juju/python-libjuju/blob/49fe19ff5754ae8ce9365cd7bddbcd33f565bd69/tests/integration/test_machine.py#L35). However, since this is just an informational message, I don't think that really matters.