Playing around with testing (unsuccessfully)

src/infrastructure/node.zig

@@ -2,6 +2,7 @@ const std = @import("std");
 const rl = @import("raylib");
 
 const c = @import("../constants.zig");
+const e = @import("../errors.zig");
 const Road = @import("road.zig").Road;
 
 pub const Node = struct {
@@ -34,7 +35,7 @@ pub const Node = struct {
     pub fn referenceRoad(self: *Node, allocator: std.mem.Allocator, road_to_add: *Road) !void {
         // Note the road_to_add pointer must be one from the roads list as otherwise the pointer is dangling one
         for (self.roads.items) |road| {
-            if (road.*.id == road_to_add.*.id) return error.RoadAlreadyReferenced;
+            if (road == road_to_add) return e.Entity.AlreadyReferenced;
         }
 
         try self.roads.append(allocator, road_to_add);