public void VapPres_TDewPoint( UnitSystem system, double dewPoint, double dryBulb, double expected, double within) { var psy = new Psychrometrics(system); var vapPres = psy.GetVapPresFromTDewPoint(dewPoint); Assert.That(psy.GetTDewPointFromVapPres(dryBulb, vapPres), Is.EqualTo(expected).Within(within)); }