public void CalcularTotalUsd() { const decimal totalCol = 5000; var cotizacion = new Cotizacion { TotalCol = totalCol, Material = new Material(), TipoCambio = new TipoCambio { Monto = 500 } }; var instance = new Estimator(cotizacion); instance.CalcularTotalUsd(); Assert.AreEqual(10, cotizacion.TotalUsd); }