stefanoj3 / dirstalk

import (

	"sync"

	"net/http"

	"net/http/httptest"

)

func NewServerWithAssertion(handler http.HandlerFunc) (*httptest.Server, *ServerAssertion) {

	serverAssertion := &ServerAssertion{}

	server := httptest.NewServer(serverAssertion.wrap(handler))

	return server, serverAssertion

}

type ServerAssertion struct {

	requests   []http.Request

	requestsMx sync.RWMutex

}

func (s *ServerAssertion) wrap(handler http.HandlerFunc) http.HandlerFunc {

	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

		handler(w, r)

		s.requestsMx.Lock()

		defer s.requestsMx.Unlock()

		s.requests = append(s.requests, *r)

	})

}

func (s *ServerAssertion) Range(fn func(index int, r http.Request)) {

	s.requestsMx.RLock()

	defer s.requestsMx.RUnlock()

	for i, r := range s.requests {

		fn(i, r)

	}

}

func (s *ServerAssertion) At(index int, fn func(r http.Request)) {

	s.requestsMx.RLock()

	defer s.requestsMx.RUnlock()

	fn(s.requests[index])

}

func (s *ServerAssertion) Len() int {

	s.requestsMx.RLock()

	defer s.requestsMx.RUnlock()

	return len(s.requests)

}