public void WhenSistemaSalvarAsimulacaoDeCompra()
        {
            var service = new CompraService(new CompraRepository(this.MassaBuilder.Context));

            var controller = new CompraController(service);
            var result     = controller.Post(this.MassaBuilder.Compra).ConfigureAwait(false);

            var createdResponse = result.GetAwaiter().GetResult() as CreatedResult;

            this.MassaBuilder.Compra = createdResponse.Value as Compra;
        }