add a debug mode for testing that returns json content and no tempaltes

server.go

@@ -1,6 +1,7 @@
 package snap
 
 import (
+	"encoding/json"
 	"fmt"
 	"html/template"
 	"io"
@@ -27,6 +28,10 @@ type Server struct {
 	router     *mux.Router
 	templates  string
 	cachedTmpl *template.Template
+
+	// testModeEnabled if test mode is enabled we will not render the template but jsut return the
+	//   json object
+	testModeEnabled bool
 }
 
 type SnapBaseContent struct {
@@ -200,6 +205,14 @@ func (s *Server) getTemplates() *template.Template {
 }
 
 func (s *Server) render(w http.ResponseWriter, tmpl string, content interface{}) {
+	if s.testModeEnabled {
+		msg, err := json.Marshal(content)
+		if err != nil {
+			s.renderError(w, 400, "Internal Server Error")
+		}
+		s.reply(w, string(msg))
+		return
+	}
 	err := s.getTemplates().ExecuteTemplate(w, tmpl, content)
 	if err != nil {
 		log.Warn(err)
@@ -289,6 +302,11 @@ func (s *Server) WithTheme(themeURL string) *Server {
 	return s
 }
 
+func (s *Server) EnableTestMode(enable bool) *Server {
+	s.testModeEnabled = enable
+	return s
+}
+
 func (s *Server) WithRootFileSystem(fs http.FileSystem) *Server {
 	s.fs = fs
 	return s