public void CanExplainWhyItDoesNotCallSecondCheck()
{
var bankAccountDetails = BankDetailsTestMother.BankDetailsWithException(3);
var modulusCheckOutcome = _isSecondCheckRequiredGate.Process(bankAccountDetails);
Assert.AreEqual("first weight mapping exception does not require second check", modulusCheckOutcome.Explanation);
}
public void ExceptionRequiresSecondCheckItCallsNext(int exception)
{
var bankAccountDetails = BankDetailsTestMother.BankDetailsWithException(exception);
_isSecondCheckRequiredGate.Process(bankAccountDetails);
_nextStep.Verify(ns => ns.Process(bankAccountDetails), Times.Once);
}
public void DoesNotCallSecondCheckIfExceptionDoesNotRequireIt(int exception)
{
var bankAccountDetails = BankDetailsTestMother.BankDetailsWithException(exception);
_isSecondCheckRequiredGate.Process(bankAccountDetails);
_nextStep.Verify(ns => ns.Process(bankAccountDetails), Times.Never);
}
public void CanCallNextStepWhenAccountDoesNotQualifyToSkip(int exception, bool firstCheck)
{
var details = BankDetailsTestMother.BankDetailsWithException(exception);
details.FirstResult = firstCheck;
_isExceptionTwoAndFirstCheckPassedGate.Process(details);
_nextStep.Verify(ns => ns.Process(details), Times.Once);
}
public void ItExplainsThatItCallsTheExceptionCalculatorWhenTheFirstTestFails()
{
var details = BankDetailsTestMother.BankDetailsWithException(14);
details.FirstResult = false;
var modulusCheckOutcome = _exceptionFourteenGate.Process(details);
Assert.AreEqual("StandardModulusExceptionFourteenCalculator", modulusCheckOutcome.Explanation);
}
public void CanSkipSecondCheckForExceptionTwoWithPassedFirstCheck()
{
var details = BankDetailsTestMother.BankDetailsWithException(2);
details.FirstResult = true;
_isExceptionTwoAndFirstCheckPassedGate.Process(details);
_nextStep.Verify(ns => ns.Process(details), Times.Never);
}
public void ItExplainsThatItReturnsFirstResultWhenThatPasses()
{
var details = BankDetailsTestMother.BankDetailsWithException(14);
details.FirstResult = true;
var modulusCheckOutcome = _exceptionFourteenGate.Process(details);
Assert.AreEqual("Coutts Account with passing first check", modulusCheckOutcome.Explanation);
}
public void CanExplainSkippingSecondCheck()
{
var details = BankDetailsTestMother.BankDetailsWithException(2);
details.FirstResult = true;
var modulusCheckOutcome = _isExceptionTwoAndFirstCheckPassedGate.Process(details);
Assert.AreEqual("IsExceptionTwoAndFirstCheckPassed", modulusCheckOutcome.Explanation);
}
public void ItCallsTheExceptionCalculatorWhenTheFirstTestFails()
{
var details = BankDetailsTestMother.BankDetailsWithException(14);
details.FirstResult = false;
_exceptionFourteenGate.Process(details);
_nextStep.Verify(ns => ns.Process(details), Times.Never);
_mockCalc.Verify(mc => mc.Process(details), Times.Once);
}
public void ItReturnsFirstResultWhenThatPasses()
{
var details = BankDetailsTestMother.BankDetailsWithException(14);
details.FirstResult = true;
_exceptionFourteenGate.Process(details);
_nextStep.Verify(ns => ns.Process(details), Times.Never);
_mockCalc.Verify(mc => mc.Process(details), Times.Never);
}
public void IfThereIsOnlyOneMappingItReturns()
{
_bankAccountDetails.WeightMappings = new[]
{
BankDetailsTestMother.AnyModulusWeightMapping()
};
_onlyOneWeightMappingGate.Process(_bankAccountDetails);
_nextStep.Verify(ns => ns.Process(It.IsAny <BankAccountDetails>()), Times.Never);
}
public void ItCanExplainThatThereWasOnlyOneMapping()
{
_bankAccountDetails.WeightMappings = new[]
{
BankDetailsTestMother.AnyModulusWeightMapping()
};
var modulusCheckOutcome = _onlyOneWeightMappingGate.Process(_bankAccountDetails);
Assert.AreEqual("not proceeding to the second check as there is only one weight mapping", modulusCheckOutcome.Explanation);
}
public void CanChooseDblAl()
{
var secondModulusCalculatorStep = new SecondModulusCalculatorStep(_secondStepRouter, _nextStep.Object);
var details = BankDetailsTestMother.BankDetailsWithAlgorithm(ModulusAlgorithm.DblAl);
secondModulusCalculatorStep.Process(details);
_standardTen.Verify(st => st.Process(details), Times.Never);
_standardEleven.Verify(st => st.Process(details), Times.Never);
_doubleAlternate.Verify(st => st.Process(details), Times.Once);
_nextStep.Verify(st => st.Process(details), Times.Once);
}
public void IfThereAreTwoMappingsItCallsTheNextStep()
{
_bankAccountDetails.WeightMappings = new[]
{
BankDetailsTestMother.AnyModulusWeightMapping(),
BankDetailsTestMother.AnyModulusWeightMapping()
};
_onlyOneWeightMappingGate.Process(_bankAccountDetails);
_nextStep.Verify(ns => ns.Process(_bankAccountDetails), Times.Once);
}
public void ItCallsTheNextStep()
{
var mockCalc = new Mock <StandardModulusExceptionFourteenCalculator>();
var nextStep = new Mock <IProcessAStep>();
var gate = new ExceptionFourteenGate(mockCalc.Object, nextStep.Object);
var details = BankDetailsTestMother.BankDetailsWithException(0);
gate.Process(details);
nextStep.Verify(ns => ns.Process(details), Times.Once);
mockCalc.Verify(mc => mc.Process(details), Times.Never);
}
public void CallsNextStepWhenAccountRequiresSecondCheck(int exception, string accountNumberCharacter)
{
var bankAccountDetails = new BankAccountDetails("012345", $"00{accountNumberCharacter}00000")
{
WeightMappings = new[]
{
BankDetailsTestMother.WeightMappingWithException(3),
BankDetailsTestMother.WeightMappingWithException(exception)
}
};
_isExceptionThreeAndCanSkipSecondCheck.Process(bankAccountDetails);
_nextStep.Verify(ns => ns.Process(bankAccountDetails), Times.Once);
}
public void CanExplainSkippingSecondCheck()
{
var bankAccountDetails = new BankAccountDetails("012345", "00600000")
{
WeightMappings = new[]
{
BankDetailsTestMother.WeightMappingWithException(3),
BankDetailsTestMother.WeightMappingWithException(3)
}
};
var modulusCheckOutcome = _isExceptionThreeAndCanSkipSecondCheck.Process(bankAccountDetails);
Assert.AreEqual("IsExceptionThreeAndCanSkipSecondCheck", modulusCheckOutcome.Explanation);
}
public void CanSkipSecondCheckWhenExceptionThreeAndSixOrNineAtPositionTwoInAccountNumber(string accountNumber)
{
var bankAccountDetails = new BankAccountDetails("012345", $"00{accountNumber}00000")
{
WeightMappings = new[]
{
BankDetailsTestMother.WeightMappingWithException(3),
BankDetailsTestMother.WeightMappingWithException(3)
}
};
_isExceptionThreeAndCanSkipSecondCheck.Process(bankAccountDetails);
_nextStep.Verify(ns => ns.Process(bankAccountDetails), Times.Never);
}
public void OtherwiseSecondCheckDeterminesResult(bool firstCheck, bool secondCheck, bool expected)
{
var step = new PostProcessModulusCheckResult();
var bankAccountDetails = new BankDetailsTestMother()
.WithFirstWeightMapping(BankDetailsTestMother.WeightMappingWithException(-1))
.WithSecondWeightMapping(BankDetailsTestMother.WeightMappingWithException(-1))
.WithFirstCheckResult(firstCheck)
.WithSecondCheckResult(secondCheck)
.Build();
var modulusCheckOutcome = step.Process(bankAccountDetails);
Assert.AreEqual(expected, modulusCheckOutcome.Result);
Assert.AreEqual("no exceptions affect result - using second check result", modulusCheckOutcome.Explanation);
}
public void ExceptionTwelveAndThirteenEitherCanPass(bool firstCheck, bool secondCheck, bool expected)
{
var step = new PostProcessModulusCheckResult();
var bankAccountDetails = new BankDetailsTestMother()
.WithFirstWeightMapping(BankDetailsTestMother.WeightMappingWithException(12))
.WithSecondWeightMapping(BankDetailsTestMother.WeightMappingWithException(13))
.WithFirstCheckResult(firstCheck)
.WithSecondCheckResult(secondCheck)
.Build();
var modulusCheckOutcome = step.Process(bankAccountDetails);
Assert.AreEqual(expected, modulusCheckOutcome.Result);
Assert.AreEqual("exception 12 and 13 - so second or first check must pass", modulusCheckOutcome.Explanation);
}
public void ExceptionFiveBothChecksMustPass(bool firstCheck, bool secondCheck, bool expected)
{
var step = new PostProcessModulusCheckResult();
var bankAccountDetails = new BankDetailsTestMother()
.WithFirstWeightMapping(BankDetailsTestMother.WeightMappingWithException(5))
.WithSecondWeightMapping(BankDetailsTestMother.WeightMappingWithException(5))
.WithFirstCheckResult(firstCheck)
.WithSecondCheckResult(secondCheck)
.Build();
var modulusCheckOutcome = step.Process(bankAccountDetails);
Assert.AreEqual(expected, modulusCheckOutcome.Result);
Assert.AreEqual("exception 5 - so first and second check must pass", modulusCheckOutcome.Explanation);
}