public void Constructor1ShouldStoreAndPrintValueAndSymbol()
 {
     SpecificGravityOfWater sgw = new SpecificGravityOfWater(10);
     String correctAnswer = "G_w = 10";
     Assert.AreEqual("G_w", sgw.Symbol);
     Assert.AreEqual(sgw.NumericValue, 10);
     Assert.AreEqual(correctAnswer, sgw.ToString());
 }
 public void Constructor2ShouldStoreAndPrintValueAndSymbol()
 {
     UnitWeightOfWater uws = new UnitWeightOfWater(10, UnitWeightUnits.GramPerCubicCentimeter);
     SpecificGravityOfWater sgw = new SpecificGravityOfWater(uws);
     String correctAnswer = "G_w = 10";
     Assert.AreEqual("G_w", sgw.Symbol);
     Assert.AreEqual(sgw.NumericValue, 10);
     Assert.AreEqual(correctAnswer, sgw.ToString());
 }