func runCommand(command string) (string, error) {
	var out bytes.Buffer
	rootCmd := GetRootCmd(cli.NewFakeContext(&cli.NewFakeContextOption{
		Version: "25",
	}), strings.Split(command, " "))
	rootCmd.SetOut(&out)

	err := rootCmd.Execute()
	return out.String(), err
}

// cleanTestCluster resets the test cluster.
func cleanTestCluster() error {