public void Bac(Ounces alcohol, Pounds weight, Gender gender, TimeSpan sinceDrink)
{
Debug.Assert(alcohol != null && alcohol.Total >= 0f);
Debug.Assert(weight != null && weight.Total >= 0f);
Debug.Assert(sinceDrink.Hours >= 0f);
BacResults(CalculateBac(alcohol.Total, weight.Total, gender, sinceDrink));
}
public void Legal_To_Drive()
{
var subject = new BloodAlcoholCalculator {
Output = new StringWriter()
};
subject.Bac(
alcohol: Ounces.FromOunces(4.4f),
weight: Pounds.FromPounds(180.0f),
gender: Gender.Female,
sinceDrink: TimeSpan.FromHours(3));
Assert.That(subject.Output.ToString(), Is.StringContaining("You are legal to drive."));
}
public void Illegal_To_Drive()
{
var subject = new BloodAlcoholCalculator {
Output = new StringWriter()
};
subject.Bac(
alcohol: Ounces.FromOunces(25.0f),
weight: Pounds.FromPounds(100.0f),
gender: Gender.Male,
sinceDrink: TimeSpan.FromHours(1));
Assert.That(subject.Output.ToString(),
Is.StringContaining("It is not legal for you to drive."));
}
public void Execute()
{
var alcohol = Input.FloatParse(message: "Alcohol (ounces): ");
var weight = Input.FloatParse(message: "Weight (pounds): ");
var genderInput = Input.ParseStringMatching(message: "Gender Male/Female: ", expression: "(Male|Female)");
var hoursSinceDrink = Input.ParseInt(message: "Hours Since Drink: ");
var calculator = new BloodAlcoholCalculator();
calculator.Bac(
Ounces.FromOunces(alcohol),
Pounds.FromPounds(weight),
(Gender)Enum.Parse(typeof(Gender), genderInput, ignoreCase: true),
TimeSpan.FromHours(hoursSinceDrink)
);
}