public void Calculate_NormalDynamicsCalculatorThrowsException_ThenExceptionRethrown()
{
// Setup
var calculatorException = new CalculatorException();
var normalTakeOffDynamicsCalculator = Substitute.For <INormalTakeOffDynamicsCalculator>();
normalTakeOffDynamicsCalculator.Calculate(Arg.Any <AircraftState>())
.Throws(calculatorException);
var failureTakeOffDynamicsCalculator = Substitute.For <IFailureTakeOffDynamicsCalculator>();
var integrator = Substitute.For <IIntegrator>();
var calculator = new DistanceCalculator(normalTakeOffDynamicsCalculator,
failureTakeOffDynamicsCalculator,
integrator,
CalculationSettingsTestFactory.CreateDistanceCalculatorSettings());
// Call
TestDelegate call = () => calculator.Calculate();
// Assert
var exception = Assert.Throws <CalculatorException>(call);
Assert.AreSame(calculatorException, exception);
}
public static void Calculate_ContinuedTakeOffDistanceCalculatorThrowsCalculatorException_ThrowsCalculatorException()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
var integrator = Substitute.For <IIntegrator>();
int nrOfFailedEngines = random.Next();
double density = random.NextDouble();
double gravitationalAcceleration = random.NextDouble();
CalculationSettings calculationSettings = CalculationSettingsTestFactory.CreateDistanceCalculatorSettings();
var calculatorException = new CalculatorException();
var continuedTakeOffDistanceCalculator = Substitute.For <IDistanceCalculator>();
continuedTakeOffDistanceCalculator.Calculate().Throws(calculatorException);
var distanceCalculatorFactory = Substitute.For <IDistanceCalculatorFactory>();
distanceCalculatorFactory.CreateAbortedTakeOffDistanceCalculator(null, null, 0, 0, null).ReturnsForAnyArgs(continuedTakeOffDistanceCalculator);
var aggregatedCalculator = new Calculator.AggregatedDistanceCalculator.AggregatedDistanceCalculator(distanceCalculatorFactory);
// Call
TestDelegate call = () => aggregatedCalculator.Calculate(aircraftData, integrator, nrOfFailedEngines, density, gravitationalAcceleration, calculationSettings);
// Assert
var exception = Assert.Throws <CalculatorException>(call);
Assert.AreSame(calculatorException, exception);
}
public void CreateDistanceCalculatorSettings_Always_ReturnsExpectedValues()
{
// Call
CalculationSettings settings = CalculationSettingsTestFactory.CreateDistanceCalculatorSettings();
// Assert
Assert.IsNotNull(settings);
Assert.Greater(settings.FailureSpeed, 0);
Assert.Greater(settings.MaximumNrOfTimeSteps, 0);
Assert.IsTrue(IsConcreteNumber(settings.TimeStep));
}
public static void Calculate_WithArguments_ExecutesDistanceCalculatorsAndReturnsExpectedOutput()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
var integrator = Substitute.For <IIntegrator>();
int nrOfFailedEngines = random.Next();
double density = random.NextDouble();
double gravitationalAcceleration = random.NextDouble();
CalculationSettings calculationSettings = CalculationSettingsTestFactory.CreateDistanceCalculatorSettings();
var abortedTakeOffDistanceCalculator = Substitute.For <IDistanceCalculator>();
var abortedTakeOffDistanceOutput = new DistanceCalculatorOutput(calculationSettings.FailureSpeed, random.NextDouble());
abortedTakeOffDistanceCalculator.Calculate().Returns(abortedTakeOffDistanceOutput);
var continuedTakeOffDistanceCalculator = Substitute.For <IDistanceCalculator>();
var continuedTakeOffDistanceOutput = new DistanceCalculatorOutput(calculationSettings.FailureSpeed, random.NextDouble());
continuedTakeOffDistanceCalculator.Calculate().Returns(continuedTakeOffDistanceOutput);
var distanceCalculatorFactory = Substitute.For <IDistanceCalculatorFactory>();
distanceCalculatorFactory.CreateAbortedTakeOffDistanceCalculator(Arg.Is(aircraftData),
Arg.Is(integrator),
Arg.Is(density),
Arg.Is(gravitationalAcceleration),
Arg.Is(calculationSettings))
.Returns(abortedTakeOffDistanceCalculator);
distanceCalculatorFactory.CreateContinuedTakeOffDistanceCalculator(Arg.Is(aircraftData),
Arg.Is(integrator),
Arg.Is(nrOfFailedEngines),
Arg.Is(density),
Arg.Is(gravitationalAcceleration),
Arg.Is(calculationSettings))
.Returns(continuedTakeOffDistanceCalculator);
var aggregatedCalculator = new Calculator.AggregatedDistanceCalculator.AggregatedDistanceCalculator(distanceCalculatorFactory);
// Call
AggregatedDistanceOutput output = aggregatedCalculator.Calculate(aircraftData, integrator, nrOfFailedEngines, density, gravitationalAcceleration, calculationSettings);
// Assert
Assert.AreEqual(calculationSettings.FailureSpeed, output.FailureSpeed);
Assert.AreEqual(abortedTakeOffDistanceOutput.Distance, output.AbortedTakeOffDistance);
Assert.AreEqual(continuedTakeOffDistanceOutput.Distance, output.ContinuedTakeOffDistance);
}
public void Constructor_IntegratorNull_ThrowsArgumentNullException()
{
// Setup
var normalTakeOffDynamicsCalculator = Substitute.For <INormalTakeOffDynamicsCalculator>();
var failureTakeOffDynamicsCalculator = Substitute.For <IFailureTakeOffDynamicsCalculator>();
// Call
TestDelegate call = () => new DistanceCalculator(normalTakeOffDynamicsCalculator,
failureTakeOffDynamicsCalculator,
null,
CalculationSettingsTestFactory.CreateDistanceCalculatorSettings());
// Assert
var exception = Assert.Throws <ArgumentNullException>(call);
Assert.AreEqual("integrator", exception.ParamName);
}
public static void Constructor_ExpectedValues()
{
// Setup
var normalTakeOffDynamicsCalculator = Substitute.For <INormalTakeOffDynamicsCalculator>();
var failureTakeOffDynamicsCalculator = Substitute.For <IFailureTakeOffDynamicsCalculator>();
var integrator = Substitute.For <IIntegrator>();
CalculationSettings calculationSettings = CalculationSettingsTestFactory.CreateDistanceCalculatorSettings();
// Call
var calculator = new DistanceCalculator(normalTakeOffDynamicsCalculator,
failureTakeOffDynamicsCalculator,
integrator,
calculationSettings);
// Assert
Assert.IsInstanceOf <IDistanceCalculator>(calculator);
}
public void Calculate_IntegratorNull_ThrowsArgumentNullException()
{
// Setup
var random = new Random(21);
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
int nrOfFailedEngines = random.Next();
double density = random.NextDouble();
double gravitationalAcceleration = random.NextDouble();
CalculationSettings calculationSettings = CalculationSettingsTestFactory.CreateDistanceCalculatorSettings();
var distanceCalculatorFactory = Substitute.For <IDistanceCalculatorFactory>();
var aggregatedCalculator = new Calculator.AggregatedDistanceCalculator.AggregatedDistanceCalculator(distanceCalculatorFactory);
// Call
TestDelegate call = () => aggregatedCalculator.Calculate(aircraftData, null, nrOfFailedEngines, density, gravitationalAcceleration, calculationSettings);
// Assert
var exception = Assert.Throws <ArgumentNullException>(call);
Assert.AreEqual("integrator", exception.ParamName);
}
public void CreateContinuedTakeOffDistanceCalculator_WithValidArguments_ReturnsExpectedCalculator()
{
// Setup
var random = new Random(21);
double density = random.NextDouble();
double gravitationalAcceleration = random.NextDouble();
int nrOfFailedEngines = random.Next();
AircraftData aircraftData = AircraftDataTestFactory.CreateRandomAircraftData();
var normalTakeOffDynamicsCalculator = Substitute.For <INormalTakeOffDynamicsCalculator>();
var failureTakeOffDynamicsCalculator = Substitute.For <IFailureTakeOffDynamicsCalculator>();
var takeOffDynamicsCalculatorFactory = Substitute.For <ITakeOffDynamicsCalculatorFactory>();
takeOffDynamicsCalculatorFactory.CreateNormalTakeOffDynamics(aircraftData, density, gravitationalAcceleration)
.Returns(normalTakeOffDynamicsCalculator);
takeOffDynamicsCalculatorFactory.CreateContinuedTakeOffDynamicsCalculator(aircraftData, nrOfFailedEngines, density, gravitationalAcceleration)
.Returns(failureTakeOffDynamicsCalculator);
var integrator = Substitute.For <IIntegrator>();
IDistanceCalculatorFactory factory = new DistanceCalculatorFactory(takeOffDynamicsCalculatorFactory);
// Call
IDistanceCalculator calculator = factory.CreateContinuedTakeOffDistanceCalculator(aircraftData,
integrator,
nrOfFailedEngines,
density,
gravitationalAcceleration,
CalculationSettingsTestFactory.CreateDistanceCalculatorSettings());
// Assert
takeOffDynamicsCalculatorFactory.DidNotReceiveWithAnyArgs().CreateAbortedTakeOffDynamics(Arg.Any <AircraftData>(),
Arg.Any <double>(),
Arg.Any <double>());
takeOffDynamicsCalculatorFactory.Received(1).CreateNormalTakeOffDynamics(Arg.Any <AircraftData>(),
Arg.Any <double>(),
Arg.Any <double>());
takeOffDynamicsCalculatorFactory.Received(1).CreateContinuedTakeOffDynamicsCalculator(Arg.Any <AircraftData>(),
Arg.Any <int>(),
Arg.Any <double>(),
Arg.Any <double>());
Assert.IsInstanceOf <DistanceCalculator>(calculator);
}
