Description of change
Instead of clumping them all together in state_test.go and addmachine.go, pull them out into their own file enableha.go and enableha_test.go. Should be more understandable when they are grouped together like that.
This simply moves the code, it makes no changes to the individual lines.
QA steps
Nothing externally visible should change. You can run just these tests with:
$ cd state
$ go test -check.v -check.f EnableHA
Documentation changes
None.
Bug reference
None.
该提问来源于开源项目：juju/juju
