func canLoginToAPIAsMachine(c *gc.C, fromConf, toConf agent.Config) bool {
fromInfo, ok := fromConf.APIInfo()
c.Assert(ok, jc.IsTrue)
toInfo, ok := toConf.APIInfo()
c.Assert(ok, jc.IsTrue)
fromInfo.Addrs = toInfo.Addrs
var err error
var apiState api.Connection
for a := ShortAttempt.Start(); a.Next(); {
apiState, err = api.Open(fromInfo, upgradeTestDialOpts)
// If space discovery is still in progress we retry.
if err != nil && strings.Contains(err.Error(), "spaces are still being discovered") {
if !a.HasNext() {
return false
}
continue
}
if apiState != nil {
apiState.Close()
}
break
}
return apiState != nil && err == nil
}