func assertUnitRemoved(c *C, unit *state.Unit) {
err := unit.Refresh()
c.Assert(err, checkers.Satisfies, errors.IsNotFoundError)
err = unit.Destroy()
c.Assert(err, IsNil)
err = unit.EnsureDead()
c.Assert(err, IsNil)
err = unit.Remove()
c.Assert(err, IsNil)
}
// remove will remove the supplied unit from state. It will panic if it
// observes inconsistent internal state.
func (d *Deployer) remove(unit *state.Unit) error {
if d.deployed.Contains(unit.Name()) {
panic("must not remove a deployed unit")
} else if unit.Life() == state.Alive {
panic("must not remove an Alive unit")
}
logger.Infof("removing unit %q", unit)
if err := unit.EnsureDead(); err != nil {
return err
}
return unit.Remove()
}