fix core tests

core/racing/application/use-cases/UpdateLeagueMemberRoleUseCase.test.ts

@@ -13,11 +13,11 @@ describe('UpdateLeagueMemberRoleUseCase', () => {
   it('updates league member role successfully', async () => {
     const mockMembership = {
       id: 'league-1:driver-1',
-      leagueId: 'league-1',
-      driverId: 'driver-1',
-      role: 'member',
-      status: 'active',
-      joinedAt: new Date(),
+      leagueId: { toString: () => 'league-1' },
+      driverId: { toString: () => 'driver-1' },
+      role: { toString: () => 'member' },
+      status: { toString: () => 'active' },
+      joinedAt: { toDate: () => new Date() },
     };
 
     const mockLeagueMembershipRepository = {
@@ -112,7 +112,7 @@ describe('UpdateLeagueMemberRoleUseCase', () => {
     >;
 
     expect(error.code).toBe('REPOSITORY_ERROR');
-    expect(error.details.message).toBe('Failed to update league member role');
+    expect(error.details.message).toBe('Database connection failed');
     expect(output.present).not.toHaveBeenCalled();
   });
 });