wip league admin tools

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

@@ -115,4 +115,80 @@ describe('UpdateLeagueMemberRoleUseCase', () => {
     expect(error.details.message).toBe('Database connection failed');
     expect(output.present).not.toHaveBeenCalled();
   });
+
+  it('rejects invalid roles', async () => {
+    const mockMembership = {
+      id: 'league-1:driver-1',
+      leagueId: { toString: () => 'league-1' },
+      driverId: { toString: () => 'driver-1' },
+      role: { toString: () => 'member' },
+      status: { toString: () => 'active' },
+      joinedAt: { toDate: () => new Date() },
+    };
+
+    const mockLeagueMembershipRepository = {
+      getLeagueMembers: vi.fn().mockResolvedValue([mockMembership]),
+      saveMembership: vi.fn().mockResolvedValue(undefined),
+    } as unknown as ILeagueMembershipRepository;
+
+    const output: UseCaseOutputPort<UpdateLeagueMemberRoleResult> & { present: Mock } = {
+      present: vi.fn(),
+    };
+
+    const useCase = new UpdateLeagueMemberRoleUseCase(mockLeagueMembershipRepository, output);
+
+    const result = await useCase.execute({
+      leagueId: 'league-1',
+      targetDriverId: 'driver-1',
+      newRole: 'manager',
+    });
+
+    expect(result.isErr()).toBe(true);
+    const error = result.unwrapErr() as ApplicationErrorCode<
+      UpdateLeagueMemberRoleErrorCode,
+      { message: string }
+    >;
+
+    expect(error.code).toBe('INVALID_ROLE');
+    expect(output.present).not.toHaveBeenCalled();
+    expect(mockLeagueMembershipRepository.saveMembership).not.toHaveBeenCalled();
+  });
+
+  it('prevents downgrading the last owner', async () => {
+    const mockOwnerMembership = {
+      id: 'league-1:owner-1',
+      leagueId: { toString: () => 'league-1' },
+      driverId: { toString: () => 'owner-1' },
+      role: { toString: () => 'owner' },
+      status: { toString: () => 'active' },
+      joinedAt: { toDate: () => new Date() },
+    };
+
+    const mockLeagueMembershipRepository = {
+      getLeagueMembers: vi.fn().mockResolvedValue([mockOwnerMembership]),
+      saveMembership: vi.fn().mockResolvedValue(undefined),
+    } as unknown as ILeagueMembershipRepository;
+
+    const output: UseCaseOutputPort<UpdateLeagueMemberRoleResult> & { present: Mock } = {
+      present: vi.fn(),
+    };
+
+    const useCase = new UpdateLeagueMemberRoleUseCase(mockLeagueMembershipRepository, output);
+
+    const result = await useCase.execute({
+      leagueId: 'league-1',
+      targetDriverId: 'owner-1',
+      newRole: 'admin',
+    });
+
+    expect(result.isErr()).toBe(true);
+    const error = result.unwrapErr() as ApplicationErrorCode<
+      UpdateLeagueMemberRoleErrorCode,
+      { message: string }
+    >;
+
+    expect(error.code).toBe('CANNOT_DOWNGRADE_LAST_OWNER');
+    expect(output.present).not.toHaveBeenCalled();
+    expect(mockLeagueMembershipRepository.saveMembership).not.toHaveBeenCalled();
+  });
 });