package main
 
 import (
 	"net/http"
 	"net/http/httptest"
 	"regexp"
 	"strings"
 	"sync"
 
 	"github.com/go-check/check"
 )
 
 type handlerFunc func(w http.ResponseWriter, r *http.Request)
 
 type testRegistry struct {
 	server   *httptest.Server
 	hostport string
 	handlers map[string]handlerFunc
 	mu       sync.Mutex
 }
 
 func (tr *testRegistry) registerHandler(path string, h handlerFunc) {
 	tr.mu.Lock()
 	defer tr.mu.Unlock()
 	tr.handlers[path] = h
 }
 
 func newTestRegistry(c *check.C) (*testRegistry, error) {
 	testReg := &testRegistry{handlers: make(map[string]handlerFunc)}
 
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		url := r.URL.String()
 
 		var matched bool
 		var err error
 		for re, function := range testReg.handlers {
 			matched, err = regexp.MatchString(re, url)
 			if err != nil {

 				c.Fatal("Error with handler regexp")

 				return
 			}
 			if matched {
 				function(w, r)
 				break
 			}
 		}
 
 		if !matched {

 			c.Fatalf("Unable to match %s with regexp", url)

 		}
 	}))
 
 	testReg.server = ts
 	testReg.hostport = strings.Replace(ts.URL, "http://", "", 1)
 	return testReg, nil
 }