Add some auth tests

Former-commit-id: 7a6286d40a95a16af483ba4e253e020805647ac8 [formerly b9c0c7b3dfc13391a82e05eb1a7be94d067b1327] [formerly ed44abc1ba59afc19e402eeb5ab42ffeeff80d23 [formerly e6e1984c47]]
Former-commit-id: 13290a47d1dd5f4218b873951b4ddb798cd54dd2 [formerly 27db473259f4927be4bfd55b88e57fb87814d8d1]
Former-commit-id: 2ef8c236e62859b8cacef5b5e679780de7f22add

filemanager.go

@@ -58,8 +58,7 @@ type FileManager struct {
 // Command is a command function.
 type Command func(r *http.Request, m *FileManager, u *User) error
 
-// User contains the configuration for each user. It should be created
-// using NewUser on a File Manager instance.
+// User contains the configuration for each user.
 type User struct {
 	// ID is the required primary key with auto increment0
 	ID int `storm:"id,increment"`
@@ -349,15 +348,6 @@ func (m *FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// ServeWithErrorHTTP returns the code and error of the request.
-func (m *FileManager) ServeWithErrorHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
-	return serveHTTP(&RequestContext{
-		FM:   m,
-		User: nil,
-		FI:   nil,
-	}, w, r)
-}
-
 // Allowed checks if the user has permission to access a directory/file.
 func (u User) Allowed(url string) bool {
 	var rule *Rule