wip league admin tools

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

@@ -11,12 +11,13 @@ import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorC
 
 describe('RemoveLeagueMemberUseCase', () => {
   let useCase: RemoveLeagueMemberUseCase;
-  let leagueMembershipRepository: { getMembership: Mock; saveMembership: Mock };
+  let leagueMembershipRepository: { getMembership: Mock; getLeagueMembers: Mock; saveMembership: Mock };
   let output: UseCaseOutputPort<RemoveLeagueMemberResult> & { present: Mock };
 
   beforeEach(() => {
     leagueMembershipRepository = {
       getMembership: vi.fn(),
+      getLeagueMembers: vi.fn(),
       saveMembership: vi.fn(),
     };
     output = {
@@ -104,4 +105,33 @@ describe('RemoveLeagueMemberUseCase', () => {
 
     expect(output.present).not.toHaveBeenCalled();
   });
+
+  it('prevents removing the last owner', async () => {
+    const leagueId = 'league-1';
+    const targetDriverId = 'owner-1';
+    const membership = {
+      id: `${leagueId}:${targetDriverId}`,
+      leagueId: { toString: () => leagueId },
+      driverId: { toString: () => targetDriverId },
+      role: { toString: () => 'owner' },
+      status: { toString: () => 'active' },
+      joinedAt: { toDate: () => new Date() },
+    };
+
+    leagueMembershipRepository.getMembership.mockResolvedValue(membership);
+    leagueMembershipRepository.getLeagueMembers.mockResolvedValue([membership]);
+
+    const result = await useCase.execute({ leagueId, targetDriverId });
+
+    expect(result.isErr()).toBe(true);
+
+    const error = result.unwrapErr() as ApplicationErrorCode<
+      RemoveLeagueMemberErrorCode,
+      { message: string }
+    >;
+
+    expect(error.code).toBe('CANNOT_REMOVE_LAST_OWNER');
+    expect(output.present).not.toHaveBeenCalled();
+    expect(leagueMembershipRepository.saveMembership).not.toHaveBeenCalled();
+  });
 });