Personally (i.e. personal preference so make up your own mind) I prefer names that are either: "testObtain" or a meaningful camel-case phrase that says what it's asserting (e.g. "obtainCreatesMachine").

Also, would be good to have an assertion that the machine is usable. e.g. execute an ssh command on the created machine.

How does it know which cloud provider to use, or which image to use?