blob: ad3ed29cfae0f0ef2231c1b39d80080d301335e6 [file] [log] [blame]
// Copyright 2017 The Upspin Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// NOTE:
// Because testutil is invoked by tests throughout the Upspin tree,
// it cannot import any Upspin packages.
// Package testutil includes utility functions for Upspin tests.
package testutil // import ""
import (
// Repo returns the local filename of a file in the Upspin repository.
func Repo(dir ...string) string {
p, err := build.Import("", "", build.FindOnly)
if err != nil {
return filepath.Join(p.Dir, filepath.Join(dir...))
// PickPort listens to an available port on localhost, closes the listener, and
// returns the port number. This function may be used for finding an available
// port for tests that use the network.
func PickPort() (string, error) {
listener, err := net.Listen("tcp", "localhost:0")
if err != nil {
return "", err
defer listener.Close()
_, port, err := net.SplitHostPort(listener.Addr().String())
if err != nil {
return "", err
return port, err