package transport_test

import (
	"strings"
	"testing"

	"github.com/micro/go-micro/transport"
)

func TestHTTPTransport_PortRange(t *testing.T) {
	tp := transport.NewTransport([]string{})

	lsn1, err := tp.Listen(":44444-44448")
	if err != nil {
		t.Errorf("Did not expect an error, got %s", err)
	}
	expectedPort(t, "44444", lsn1)

	lsn2, err := tp.Listen(":44444-44448")
	if err != nil {
		t.Errorf("Did not expect an error, got %s", err)
	}
	expectedPort(t, "44445", lsn2)

	lsn, err := tp.Listen(":0")
	if err != nil {
		t.Errorf("Did not expect an error, got %s", err)
	}

	lsn.Close()
	lsn1.Close()
	lsn2.Close()
}

func expectedPort(t *testing.T, expected string, lsn transport.Listener) {
	parts := strings.Split(lsn.Addr(), ":")
	port := parts[len(parts)-1]

	if port != expected {
		lsn.Close()
		t.Errorf("Expected address to be `%s`, got `%s`", expected, port)
	}
}