func waitForConfigChange(t *testing.T, s *server.TestServer) config.SystemConfig {
var foundDesc sqlbase.Descriptor
var cfg config.SystemConfig
testutils.SucceedsSoon(t, func() error {
var ok bool
if cfg, ok = s.Gossip().GetSystemConfig(); ok {
if val := cfg.GetValue(configDescKey); val != nil {
if err := val.GetProto(&foundDesc); err != nil {
t.Fatal(err)
}
if id := foundDesc.GetDatabase().GetID(); id != configID {
return errors.Errorf("expected database id %d; got %d", configID, id)
}
return nil
}
}
return errors.Errorf("got nil system config")
})
return cfg
}
