func (s *CommonProvisionerSuite) APILogin(c *gc.C, machine *state.Machine) {
if s.st != nil {
c.Assert(s.st.Close(), gc.IsNil)
}
password, err := utils.RandomPassword()
c.Assert(err, gc.IsNil)
err = machine.SetPassword(password)
c.Assert(err, gc.IsNil)
err = machine.SetProvisioned("i-fake", "fake_nonce", nil)
c.Assert(err, gc.IsNil)
s.st = s.OpenAPIAsMachine(c, machine.Tag(), password, "fake_nonce")
c.Assert(s.st, gc.NotNil)
c.Logf("API: login as %q successful", machine.Tag())
s.provisioner = s.st.Provisioner()
c.Assert(s.provisioner, gc.NotNil)
}