core tests

core/shared/domain/Entity.ts

@@ -3,7 +3,15 @@ export interface EntityProps<Id = string> {
 }
 
 export abstract class Entity<Id> implements EntityProps<Id> {
-  protected constructor(readonly id: Id) {}
+  protected constructor(readonly id: Id) {
+    // Make the id property truly immutable at runtime
+    Object.defineProperty(this, 'id', {
+      value: id,
+      writable: false,
+      enumerable: true,
+      configurable: false
+    });
+  }
 
   equals(other?: Entity<Id>): boolean {
     return !!other && this.id === other.id;