public void IsValid_ThrowsArgumentNullExceptionBecauseNullAccountNumberPassed()
{
// Assert
var sut = new ModulusCheckingService(new List <IModulusCheckStrategy>(), _modulusWeightEntityAdapter);
// Act
Action act = () => sut.IsValid(ValidSortCode, null, new ModulusWeightEntity());
// Assert
act.Should().ThrowExactly <ArgumentNullException>().WithMessage("*input*");
}
public void IsValid_ThrowsArgumentExceptionBecauseInvalidSortCodePassed(string invalidSortCode)
{
// Assert
var sut = new ModulusCheckingService(new List <IModulusCheckStrategy>(), _modulusWeightEntityAdapter);
// Act
Action act = () => sut.IsValid(invalidSortCode, ValidAccountNumber, new ModulusWeightEntity());
// Assert
act.Should().ThrowExactly <ArgumentException>().WithMessage("*sortCode*");
}
public void IsValid_ThrowsInvalidOperationExceptionAsNoApplicableStrategyFound()
{
// Arrange
var sut = new ModulusCheckingService(new List <IModulusCheckStrategy>
{
CreateModulusCheckStrategy(true, new ModulusWeightEntity {
ModCheck = "NotValid"
})
}, _modulusWeightEntityAdapter);
// Act
Action act = () => sut.IsValid(ValidSortCode, ValidAccountNumber, new ModulusWeightEntity());
// Assert
act.Should().ThrowExactly <InvalidOperationException>().WithMessage("Sequence contains no matching element");
}
public void IsValid_ThrowsInvalidOperationExceptionAsMoreThanOneApplicableStrategyFound()
{
// Arrange
var modulusWeight = new ModulusWeightEntity {
ModCheck = ValidModulusMethodName
};
var sut = new ModulusCheckingService(new List <IModulusCheckStrategy>
{
CreateModulusCheckStrategy(true, modulusWeight),
CreateModulusCheckStrategy(true, modulusWeight)
}, _modulusWeightEntityAdapter);
// Act
Action act = () => sut.IsValid(ValidSortCode, ValidAccountNumber, modulusWeight);
// Assert
act.Should().ThrowExactly <InvalidOperationException>().WithMessage("Sequence contains more than one matching element");
}
public void IsValid_ExecutesSuccessfully(bool isValidResult)
{
// Arrange
var modulusWeight = new ModulusWeightEntity {
ModCheck = ValidModulusMethodName
};
var modulusWeightsList = new List <int> {
1
};
_modulusWeightEntityAdapter.Execute(ValidSortCode + ValidAccountNumber, modulusWeight).Returns(modulusWeightsList);
var sut = new ModulusCheckingService(new List <IModulusCheckStrategy>
{
CreateModulusCheckStrategy(isValidResult, modulusWeight),
}, _modulusWeightEntityAdapter);
// Act
var result = sut.IsValid(ValidSortCode, ValidAccountNumber, modulusWeight);
// Assert
result.Should().Be(isValidResult);
_modulusWeightEntityAdapter.Received(1).Execute(ValidSortCode + ValidAccountNumber, modulusWeight);
}