public void Generate_ReducesValuation_BasedOnMileage()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 10000;
decimal expectedValue = 17952.11M;
var ageEvaluationCalculator = new AgeEvaluationCalculator(GetAgeEvaluationStrategies());
var mileageEvaluationCalculator = new MileageEvaluationCalculator(GetMileageStrategies());
Vehicle vehicle = new Vehicle()
{
AgeInYears = 10,
BaseValuation = 30000,
Derivative = "ZETEC",
Manufacturer = "FORD",
Model = "FIESTA",
RegPlate = "MA53JRO"
};
Mock <IVehicleFinder> vehicleFinder = new Mock <IVehicleFinder>();
vehicleFinder.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(vehicleFinder.Object,
ageEvaluationCalculator,
mileageEvaluationCalculator);
// act
var result = valuationService.Generate(regPlate, mileage);
// assert
Assert.AreEqual(expectedValue, result.PriceOffered);
}
public void When_Generate_Called_And_Evaluation_ForVehicle_Becomes_Negative_Then_It_Should_Return_MinimumEvaluationValue()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 10000;
var ageEvaluationCalculator = new AgeEvaluationCalculator(GetAgeEvaluationStrategies());
var mileageEvaluationCalculator = new MileageEvaluationCalculator(GetMileageStrategies());
Vehicle vehicle = new Vehicle()
{
AgeInYears = 30,
BaseValuation = 10,
Derivative = "ZETEC",
Manufacturer = "FORD",
Model = "FIESTA",
RegPlate = "MA53JRO"
};
var expectedValue = 250.0m;
Mock <IVehicleFinder> vehicleFinder = new Mock <IVehicleFinder>();
vehicleFinder.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(vehicleFinder.Object,
ageEvaluationCalculator,
mileageEvaluationCalculator);
// act
var result = valuationService.Generate(regPlate, mileage);
// assert
Assert.AreEqual(expectedValue, result.PriceOffered);
}
public void When_Generate_Called_With_NullBaseValue_ForVehicle_Should_Return_UnableToEvaluate()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 10000;
var ageEvaluationCalculator = new AgeEvaluationCalculator(GetAgeEvaluationStrategies());
var mileageEvaluationCalculator = new MileageEvaluationCalculator(GetMileageStrategies());
Vehicle vehicle = new Vehicle()
{
AgeInYears = 10,
BaseValuation = null,
};
var expectedValue = ErrorTypes.UnableToEvaluate;
Mock <IVehicleFinder> vehicleFinder = new Mock <IVehicleFinder>();
vehicleFinder.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(vehicleFinder.Object,
ageEvaluationCalculator,
mileageEvaluationCalculator);
// act
var result = valuationService.Generate(regPlate, mileage);
// assert
Assert.AreEqual(expectedValue, result.Errors.First());
}
public void Generate_VehicleIsNull_ReturnsCannotIdentifyErrorMessage()
{
// arrange
string regPlate = "LP64NNV";
int mileage = 18000;
_vehicleFinderMock.Setup(x => x.FindByRegPlate(regPlate));
IValuationEngine valuationService = new ValuationEngine(_vehicleFinderMock.Object, _minimumValuation);
// act
var result = valuationService.Generate(regPlate, mileage);
var expectedErrorMessage = "we can't identify the car";
Assert.IsTrue(result.Errors.Contains(expectedErrorMessage));
}
public void Generate_VehicleIsLessThanMinimum_Returns250()
{
// arrange
string regPlate = "MA53JRO";
int mileAge = 200000;
var vehicle = GetVehicle(15000, 3);
_vehicleFinderMock.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(_vehicleFinderMock.Object, _minimumValuation);
// act
var result = valuationService.Generate(regPlate, mileAge);
// assert
Assert.AreEqual(250, result.PriceOffered);
}
public void Generate_VehicleValuation_ReturnsNewPrice()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 100000;
var expectedPrice = (decimal)17243.62;
var vehicle = GetVehicle(40000, 10);
_vehicleFinderMock.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(_vehicleFinderMock.Object, _minimumValuation);
// act
var result = valuationService.Generate(regPlate, mileage);
// assert
Assert.AreEqual(expectedPrice, result.PriceOffered);
}
public void Generate_VehicleBaseValueIsNull_ReturnsCannotValueErrorMessage()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 10000;
Vehicle vehicle = GetVehicle(null, 10);
_vehicleFinderMock.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(_vehicleFinderMock.Object, _minimumValuation);
// act
var result = valuationService.Generate(regPlate, mileage);
var expectedErrorMessage = "we can't value a car!";
// assert
Assert.IsTrue(result.Errors.Contains(expectedErrorMessage));
}
public void Generate_ReturnsPopulatedValuation()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 100000;
var vehicle = GetVehicle(40000, 10);
_vehicleFinderMock.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(_vehicleFinderMock.Object, _minimumValuation);
// act
var result = valuationService.Generate(regPlate, mileage);
// assert
Assert.IsInstanceOfType(result, typeof(Valuation));
Assert.AreEqual(mileage, result.Mileage);
Assert.AreEqual(regPlate, result.RegPlate);
Assert.IsNotNull(result.AgeInYears);
Assert.IsNotNull(result.PriceOffered);
}
public void Generate_ReturnsPopulatedValuation()
{
// arrange
string regPlate = "MA53JRO";
int mileage = 10000;
var ageEvaluationCalculator = new AgeEvaluationCalculator(GetAgeEvaluationStrategies());
var mileageEvaluationCalculator = new MileageEvaluationCalculator(GetMileageStrategies());
Vehicle vehicle = new Vehicle()
{
AgeInYears = 10,
BaseValuation = 40000,
Derivative = "ZETEC",
Manufacturer = "FORD",
Model = "FIESTA",
RegPlate = "MA53JRO"
};
Mock <IVehicleFinder> vehicleFinder = new Mock <IVehicleFinder>();
vehicleFinder.Setup(x => x.FindByRegPlate(regPlate)).Returns(vehicle);
IValuationEngine valuationService = new ValuationEngine(vehicleFinder.Object,
ageEvaluationCalculator,
mileageEvaluationCalculator);
// act
var result = valuationService.Generate(regPlate, mileage);
// assert
Assert.IsInstanceOfType(result, typeof(Valuation));
Assert.AreEqual(mileage, result.Mileage);
Assert.AreEqual(regPlate, result.RegPlate);
Assert.IsNotNull(result.AgeInYears);
Assert.IsNotNull(result.PriceOffered);
}