}
	}

	// Validates cfg
	if err := validation.ValidateUpgradeConfiguration(internalcfg).ToAggregate(); err != nil {
		return nil, err
	}

	return internalcfg, nil
}

// DocMapToUpgradeConfiguration converts documentMap to an internal, defaulted and validated UpgradeConfiguration object.
// The map may contain many different YAML documents. These YAML documents are parsed one-by-one

			}
			cfg, err := DocMapToUpgradeConfiguration(docmap)
			if err != nil {
				t.Fatalf("unexpected error of DocMapToUpgradeConfiguration: %v\nconfig: %s", err, string(b))
			}
			if diff := cmp.Diff(*cfg, tc.expectedCfg, cmpopts.IgnoreFields(kubeadmapi.UpgradeConfiguration{}, "Timeouts")); diff != "" {
				t.Fatalf("DocMapToUpgradeConfiguration returned unexpected diff (-want,+got):\n%s", diff)
			}
		})