diff --git a/src/tests.ts b/src/tests.ts
index 4520fd6..a27d87d 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -9,12 +9,8 @@ abstract class Identified<ID> {
     }
 }
 
-abstract class ProvideIdentified<ID> extends Identified<ID> {
-    id!: ID
-}
-
 abstract class Permissible {
-    protected permissions: string[] = []
+    permissions: string[] = []
 }
 
 
@@ -23,7 +19,16 @@ class User extends mixTraits(
     // Identified<string>,
     Permissible,
 ) {
-    id: bigint = BigInt(-1)
+    readonly id: bigint
+
+    constructor(id: bigint) {
+        super()
+        this.id = id
+    }
 }
 
-const user = new User()
+const user1 = new User(BigInt(1))
+const user2 = new User(BigInt(2))
+
+console.log(user1.equals(user2))
+console.log(user1.permissions)