public void BasicElectricityTariff_AnnualCosts_6000kWh()
{
Injector.Map <IConsumption>(() => new Consumption(6000));
BasicElectricityTariff tariff = new BasicElectricityTariff();
double totalCost = tariff.AnnualCosts;
Assert.AreEqual(1380, totalCost);
}
public void ConsumptionCostsShouldBeAsExpected(decimal annualCost, decimal consumption)
{
// Arrange
ITariff tariff = new BasicElectricityTariff();
// Act
var consumptionCost = tariff.CalculateAnnualCost(consumption);
// Assert
Assert.Equal(annualCost, consumptionCost);
}
public void ArgumentOutOfRangeExceptionShouldBeThrown(decimal annualConsumption)
{
var tariff = new BasicElectricityTariff
{
Name = string.Empty,
MonthlyTariffCost = 1,
ConsumptionCost = 1,
};
Assert.Throws <ArgumentOutOfRangeException>(() => tariff.CalculateAnnualCosts(annualConsumption));
}
public void InvalidOperationExceptionShouldBeThrown(decimal monthlyTariffCost, decimal consumptionCost)
{
var tariff = new BasicElectricityTariff
{
Name = string.Empty,
MonthlyTariffCost = monthlyTariffCost,
ConsumptionCost = consumptionCost,
};
Assert.Throws <InvalidOperationException>(() => tariff.CalculateAnnualCosts(1));
}
public void AnnualCostShouldBeValid(int cost, int consumption)
{
// Arrange
var tarrif = new BasicElectricityTariff
{
Consumption = consumption
};
// Act
// Assert
Assert.Equal(cost, tarrif.AnnualCost);
}
public void AnnualCostShouldBeCalculatedCorrectly(decimal monthlyTariffCost, decimal consumptionCost,
decimal annualConsumption, decimal expectedAnnualCost)
{
var tariff = new BasicElectricityTariff
{
Name = string.Empty,
MonthlyTariffCost = monthlyTariffCost,
ConsumptionCost = consumptionCost,
};
var actualAnnualCost = tariff.CalculateAnnualCosts(annualConsumption);
Assert.Equal(expectedAnnualCost, actualAnnualCost);
}
public void ShouldThrowArgumentExceptionWhenConsumptionNegative()
{
var tariff = new BasicElectricityTariff(-500);
}
public void ShouldReturn1380WhenConsumption6000()
{
var tariff = new BasicElectricityTariff(6000);
Assert.AreEqual(tariff.YearlyCost, 1380);
}
public void ShouldReturn830WhenConsumption3500()
{
var tariff = new BasicElectricityTariff(3500);
Assert.AreEqual(tariff.YearlyCost, 830);
}
