testCases := []struct {
		hostPort     string
		expectedHost string
		expectedPort string
	}{
		{":54321", "", "54321"},
		{"server:54321", "server", "54321"},
		{":0", "", "0"},
		{"server:https", "server", "443"},
		{"server:http", "server", "80"},
	}

	for _, testCase := range testCases {
		host, port := mustSplitHostPort(testCase.hostPort)
		if testCase.expectedHost != host {

)

// mustSplitHostPort is a wrapper to net.SplitHostPort() where error is assumed to be a fatal.
func mustSplitHostPort(hostPort string) (host, port string) {
	xh, err := xnet.ParseHost(hostPort)
	if err != nil {
		logger.FatalIf(err, "Unable to split host port %s", hostPort)
	}
	return xh.Name, xh.Port.String()
}

// mustGetLocalIPs returns IPs of local interface
func mustGetLocalIPs() (ipList []net.IP) {