Small testserver which serves the correct directory

testserver.go

package main

import (
	"net/http"
	"os"
	"path/filepath"
)

const listen = "127.0.0.1:1337"

func main() {
	dir, _ := filepath.Abs(filepath.Dir(os.Args[0]))

	println("Serving: " + dir + " at " + listen + "/")
	http.ListenAndServe(listen, http.FileServer(http.Dir(dir)))
}