public double CalculateAlcohol(ICalculateAlcohol alcoholDetails)
{
if (alcoholDetails.EndingGravity == 0)
{
throw new ArgumentOutOfRangeException("EndingGravity", 0, "0 is not a valid value for EndingGravity");
}
return((((((double)1.05 * (alcoholDetails.StartingGravity - alcoholDetails.EndingGravity)) / alcoholDetails.EndingGravity) / (double)0.79) * 100) * (double)0.79336);
}
public void ABWCalculation_Passes()
{
{
ICalculateAlcoholFactory calculatorFactory = new CalculateAlcoholFactory();
ICalculateAlcohol calculator = calculatorFactory.GetCalculator(new AlcoholByWeightStrategy());
calculator.StartingGravity = 1.05;
calculator.EndingGravity = 1.01;
var abwAlcohol = calculator.Calculate();
Assert.AreEqual(4.1761022684546969, abwAlcohol);
}
}
public void ABVCalculation_Passes()
{
ICalculateAlcoholFactory calculatorFactory = new CalculateAlcoholFactory();
ICalculateAlcohol calculator = calculatorFactory.GetCalculator(new AlcoholByVolumeStrategy());
calculator.StartingGravity = 1.05;
calculator.EndingGravity = 1.01;
var abvAlcohol = calculator.Calculate();
Assert.AreEqual(5.26381752099261, abvAlcohol);
}
public void AlcoholCalculationTestMethod_Fails_BadArgument()
{
try
{
ICalculateAlcoholFactory calculatorFactory = new CalculateAlcoholFactory();
ICalculateAlcohol calculator = calculatorFactory.GetCalculator(null);
calculator.StartingGravity = 1.05;
calculator.EndingGravity = 1.01;
var alcoholCalculator = calculator.Calculate();
}
catch (Exception ex)
{
Assert.IsInstanceOfType(ex, typeof(ArgumentOutOfRangeException));
}
}
