public double CalculateAttenuation(ICalculateAttenuation attenuationDetails)
{
if (attenuationDetails.StartingGravity == 1)
{
throw new ArgumentOutOfRangeException("StartingGravity", 1, "1 is not a valid value for StartingGravity");
}
return((double)0.1808 * attenuationDetails.StartingGravity + (double)0.8192 * (100 * ((attenuationDetails.StartingGravity - attenuationDetails.EndingGravity) / (attenuationDetails.StartingGravity - 1))));
}
public void ApparentAttenuationTestMethod_Passes()
{
ICalculateAttenuationFactory calculatorFactory = new CalculateAttenuationFactory();
ICalculateAttenuation calculator = calculatorFactory.GetCalculator(new ApparentAttenuationStrategy());
calculator.StartingGravity = 1.05;
calculator.EndingGravity = 1.01;
var apparentAttenuation = calculator.Calculate();
Assert.AreEqual(80, apparentAttenuation);
}
public void RealAttenuationTestMethod_Passes()
{
ICalculateAttenuationFactory calculatorFactory = new CalculateAttenuationFactory();
ICalculateAttenuation calculator = calculatorFactory.GetCalculator(new RealAttenuationStrategy());
calculator.StartingGravity = 1.05;
calculator.EndingGravity = 1.01;
var realAttenuation = calculator.Calculate();
Assert.AreEqual(65.72584, realAttenuation);
}
