diff --git a/test/classes/mapping/platform-user.ts b/test/classes/mapping/platform-user.ts
index 3075045..4e5ab4c 100644
--- a/test/classes/mapping/platform-user.ts
+++ b/test/classes/mapping/platform-user.ts
@@ -6,28 +6,43 @@ import chaiAsPromised from "chai-as-promised";
 import { INVALID_USER_ID, USER_NOT_LOGGED } from "../../../src/scripts/classes/errors";
 
 // Module from files
-import { auth } from "../../helpers";
-import PlatformUser from "../../../src/scripts/classes/mapping/platform-user";
-import { logout } from "../../../src";
+import { PlatformUser } from "../../../src";
+import Shared from "../../../src/scripts/shared";
 
 chai.use(chaiAsPromised);
 const { expect } = chai;
 
 export function suite(): void {
+  it("Set invalid ID", function setInvalidID() {
+    const user = new PlatformUser();
+    expect(user.setID(-1)).to.be.rejectedWith(INVALID_USER_ID);
+  });
+
+  it("Set null ID", function setNullID() {
+    const user = new PlatformUser();
+    expect(user.setID(null)).to.be.rejectedWith(INVALID_USER_ID);
+  });
+
   it("Fetch platform user without ID", async function fetchWithoutID() {
-    await auth();
+    Shared.setIsLogged(true);
     const user = new PlatformUser();
     await expect(user.fetch()).to.be.rejectedWith(INVALID_USER_ID);
   });
 
+  it("Fetch platform user with null ID", async function fetchWithNullID() {
+    Shared.setIsLogged(true);
+    const user = new PlatformUser(null);
+    await expect(user.fetch()).to.be.rejectedWith(INVALID_USER_ID);
+  });
+
   it("Fetch platform user with invalid ID", async function fetchWithInvalidID() {
-    await auth();
+    Shared.setIsLogged(true);
     const user = new PlatformUser(-1);
     await expect(user.fetch()).to.be.rejectedWith(INVALID_USER_ID);
   });
 
   it("Fetch platform user without authentication", async function fetchWithoutAuth() {
-    await logout();
+    Shared.setIsLogged(false);
     const user = new PlatformUser(1234);
     await expect(user.fetch()).to.be.rejectedWith(USER_NOT_LOGGED);
   });