import 'reflect-metadata'; import { validate } from 'class-validator'; import { CreateDepositDto } from './deposit.dto'; describe('CreateDepositDto boundaries', () => { it('removes inline installments because they are managed after deposit creation', async () => { const dto = Object.assign(new CreateDepositDto(), { studentId: 1, amount: 500, paidDate: '2026-07-13', installments: [{ amount: 250, dueDate: '2026-08-01' }], }); await validate(dto, { whitelist: true }); expect(dto).toMatchObject({ studentId: 1, amount: 500, paidDate: '2026-07-13' }); expect(dto).not.toHaveProperty('installments'); }); });