diff --git a/myteamwallet_frontend_modern/src/app/app.spec.ts b/myteamwallet_frontend_modern/src/app/app.spec.ts
index ab9aa98..d81b160 100644
--- a/myteamwallet_frontend_modern/src/app/app.spec.ts
+++ b/myteamwallet_frontend_modern/src/app/app.spec.ts
@@ -1,27 +1,87 @@
+import { signal } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
-import { provideHttpClient } from '@angular/common/http';
-import { provideHttpClientTesting } from '@angular/common/http/testing';
 import { provideRouter } from '@angular/router';
+import { of } from 'rxjs';
 import { App } from './app';
+import { AuthApi } from './core/auth/auth-api';
+import { AuthStore } from './core/auth/auth-store';
 import { environment } from '../environments/environment';
 
 describe('App', () => {
   const originalProduction = environment.production;
+  const token = signal<string | null>(null);
+  const updateUser = vi.fn();
+  const meResponse = signal<Record<string, unknown>>({
+    id: 1,
+    email: 'a@b.de',
+    firstName: 'Alex',
+    lastName: 'Muster',
+  });
+  const me = vi.fn(() => of(meResponse()));
+  const setSession = vi.fn();
 
-  beforeEach(() => {
-    localStorage.clear();
+  beforeEach(async () => {
+    token.set(null);
+    meResponse.set({ id: 1, email: 'a@b.de', firstName: 'Alex', lastName: 'Muster' });
+    updateUser.mockClear();
+    setSession.mockClear();
+    me.mockClear();
+    await TestBed.configureTestingModule({
+      imports: [App],
+      providers: [
+        provideRouter([]),
+        { provide: AuthStore, useValue: { token, updateUser, setSession } },
+        { provide: AuthApi, useValue: { me } },
+      ],
+    }).compileComponents();
   });
 
   afterEach(() => {
     environment.production = originalProduction;
   });
 
-  it('sets --env-banner-height to 0px and renders no banner in production', async () => {
+  it('should create the app', () => {
+    const fixture = TestBed.createComponent(App);
+    expect(fixture.componentInstance).toBeTruthy();
+  });
+
+  it('validates and refreshes a restored session on startup', () => {
+    token.set('stored-token');
+
+    TestBed.createComponent(App);
+
+    expect(me).toHaveBeenCalled();
+    expect(updateUser).toHaveBeenCalledWith({
+      id: 1,
+      email: 'a@b.de',
+      firstName: 'Alex',
+      lastName: 'Muster',
+    });
+  });
+
+  it('replaces an expired stored token when me returns a refreshed token', () => {
+    token.set('expired-token');
+    meResponse.set({
+      id: 1,
+      email: 'a@b.de',
+      firstName: 'Alex',
+      lastName: 'Muster',
+      token: 'refreshed-token',
+    });
+
+    TestBed.createComponent(App);
+
+    expect(setSession).toHaveBeenCalledWith('refreshed-token', {
+      id: 1,
+      email: 'a@b.de',
+      firstName: 'Alex',
+      lastName: 'Muster',
+    });
+    expect(updateUser).not.toHaveBeenCalled();
+  });
+
+  it('sets --env-banner-height to 0px and renders no banner in production', () => {
     environment.production = true;
-    await TestBed.configureTestingModule({
-      imports: [App],
-      providers: [provideHttpClient(), provideHttpClientTesting(), provideRouter([])],
-    }).compileComponents();
     const fixture = TestBed.createComponent(App);
     fixture.detectChanges();
 
@@ -29,12 +89,8 @@ describe('App', () => {
     expect(fixture.nativeElement.querySelector('.env-banner')).toBeNull();
   });
 
-  it('sets --env-banner-height to 28px and renders the banner outside production', async () => {
+  it('sets --env-banner-height to 28px and renders the banner outside production', () => {
     environment.production = false;
-    await TestBed.configureTestingModule({
-      imports: [App],
-      providers: [provideHttpClient(), provideHttpClientTesting(), provideRouter([])],
-    }).compileComponents();
     const fixture = TestBed.createComponent(App);
     fixture.detectChanges();