"net/http/httptest"
)

type statusHandler int

func (h *statusHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	w.WriteHeader(int(*h))
}

func main() {
	status := statusHandler(http.StatusNotFound)
	s := httptest.NewServer(&status)
	defer s.Close()

}

type Service struct {
	db *sql.DB
}

func (s *Service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	db := s.db
	switch r.URL.Path {
	default:
		http.Error(w, "not found", http.StatusNotFound)
		return
	case "/healthz":
		ctx, cancel := context.WithTimeout(r.Context(), 1*time.Second)
		defer cancel()

		err := s.db.PingContext(ctx)
		if err != nil {

	if err != nil {
		return nil, err
	}
	f, err := os.Open(path)

	if os.IsNotExist(err) {
		return &Response{
			URL:        u.Redacted(),
			Status:     http.StatusText(http.StatusNotFound),
			StatusCode: http.StatusNotFound,
			Body:       http.NoBody,
			fileErr:    err,
		}, nil
	}

	if os.IsPermission(err) {
		return &Response{
			URL:        u.Redacted(),

// The caller must only call reportError in contexts where
// a not-found err should be reported as 404.
func reportError(w http.ResponseWriter, err error) {
	if os.IsNotExist(err) {
		http.Error(w, err.Error(), http.StatusNotFound)
		return
	}
	http.Error(w, err.Error(), http.StatusInternalServerError)

		{"StatusNetworkAuthenticationRequired", Const, 6},
		{"StatusNoContent", Const, 0},
		{"StatusNonAuthoritativeInfo", Const, 0},
		{"StatusNotAcceptable", Const, 0},
		{"StatusNotExtended", Const, 7},
		{"StatusNotFound", Const, 0},
		{"StatusNotImplemented", Const, 0},
		{"StatusNotModified", Const, 0},
		{"StatusOK", Const, 0},
		{"StatusPartialContent", Const, 0},
		{"StatusPaymentRequired", Const, 0},