diff --git a/tests/api/upload/avatar.test.ts b/tests/api/upload/avatar.test.ts
index 9eb4cae..a36eb05 100644
--- a/tests/api/upload/avatar.test.ts
+++ b/tests/api/upload/avatar.test.ts
@@ -70,12 +70,14 @@ describe("POST /api/upload/avatar", () => {
     const res = await POST(makeRequest(null, "valid-token"));
     expect(res.status).toBe(400);
     const data = await res.json();
-    expect(data.error).toContain("Token");
+    expect(data.error).toContain("Datei und Token erforderlich");
   });
 
   it("gibt 400 zurück wenn Token fehlt", async () => {
     const res = await POST(makeRequest(makeImageFile(), null));
     expect(res.status).toBe(400);
+    const data = await res.json();
+    expect(data.error).toContain("Datei und Token erforderlich");
   });
 
   it("gibt 401 zurück bei ungültigem Token", async () => {
diff --git a/tests/hooks/useAuth.test.ts b/tests/hooks/useAuth.test.ts
index f8cac3d..3f4ecb1 100644
--- a/tests/hooks/useAuth.test.ts
+++ b/tests/hooks/useAuth.test.ts
@@ -1,6 +1,12 @@
 import { describe, it, expect, vi, beforeEach } from "vitest";
 import { renderHook, act } from "@testing-library/react";
 
+const { mockRouterPush, mockSetUser, mockSupabaseSignIn } = vi.hoisted(() => ({
+  mockRouterPush: vi.fn(),
+  mockSetUser: vi.fn(),
+  mockSupabaseSignIn: vi.fn(),
+}));
+
 vi.mock("next/navigation", () => ({
   useRouter: () => ({ push: mockRouterPush }),
 }));
@@ -18,10 +24,6 @@ vi.mock("sonner", () => ({
   toast: { success: vi.fn(), error: vi.fn() },
 }));
 
-const mockRouterPush = vi.fn();
-const mockSetUser = vi.fn();
-const mockSupabaseSignIn = vi.fn();
-
 import { useAuth } from "@/src/hooks/useAuth";
 
 beforeEach(() => {
diff --git a/tsconfig.json b/tsconfig.json
index 9f547cb..bc4adc4 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -20,7 +20,8 @@
     ],
     "paths": {
       "@/*": ["./*"]
-    }
+    },
+    "types": ["vitest/globals"]
   },
   "include": [
     "next-env.d.ts",
@@ -30,5 +31,5 @@
     ".next/dev/types/**/*.ts",
     "**/*.mts"
   ],
-  "exclude": ["node_modules", "vitest.setup.ts", "vitest.config.ts", "tests/**"]
+  "exclude": ["node_modules", "vitest.setup.ts", "vitest.config.ts"]
 }