public void Test() { ITraqPhosphoRatioCalculator calc = new ITraqPhosphoRatioCalculator(116, 117, 114, 115); IsobaricItem item = new IsobaricItem() { PlexType = IsobaricType.PLEX4 }; item[114] = 1; item[115] = 1; item[116] = 1; item[117] = 1; Assert.IsTrue(calc.Valid(item)); item[116] = ITraqConsts.NULL_INTENSITY; Assert.IsFalse(calc.Valid(item)); item[116] = 1; item[117] = ITraqConsts.NULL_INTENSITY; Assert.IsFalse(calc.Valid(item)); }