public void ConvertBack_InvalidStringToInt32_ThrowsException(object value, CultureInfo culture, int minimum, int maximum)
{
var uut = new Int32ToStringValueConverterAndValidationRule()
{
Minimum = minimum,
Maximum = maximum
};
var targetType = typeof(int);
var parameter = (object)null;
var result = Should.Throw<Exception>(() =>
{
uut.ConvertBack(value, targetType, parameter, culture);
});
result.ShouldSatisfyAnyCondition(
() => result.ShouldSatisfyAllConditions(
() => result.ShouldBeOfType<ArgumentException>(),
() => (result as ArgumentException)?.ParamName.ShouldBe(nameof(value)),
() => (result as ArgumentException)?.Message.ShouldContain(value?.ToString() ?? "null")),
() => result.ShouldSatisfyAllConditions(
() => result.ShouldBeOfType<ArgumentOutOfRangeException>(),
() => (result as ArgumentOutOfRangeException)?.ParamName.ShouldBe(nameof(value)),
() => (result as ArgumentOutOfRangeException)?.ActualValue.ShouldBe(value),
() => (result as ArgumentOutOfRangeException)?.Message.ShouldContain(minimum.ToString()),
() => (result as ArgumentOutOfRangeException)?.Message.ShouldContain(maximum.ToString())));
}
public void ConvertBack_ConversionIsInvalid_ThrowsException(object value, Type targetType)
{
var uut = new Int32ToStringValueConverterAndValidationRule();
var parameter = (object)null;
var culture = (CultureInfo)null;
var result = Should.Throw<NotSupportedException>(() =>
{
uut.ConvertBack(value, targetType, parameter, culture);
});
result.ShouldSatisfyAllConditions(
() => result.Message.ShouldContain(value?.GetType().Name ?? "null"),
() => result.Message.ShouldContain(targetType.Name));
}
public void ConvertBack_TargetTypeIsNull_ThrowsException()
{
var uut = new Int32ToStringValueConverterAndValidationRule();
var value = 0;
var targetType = (Type)null;
var parameter = (object)null;
var culture = (CultureInfo)null;
var result = Should.Throw<ArgumentNullException>(() =>
{
uut.ConvertBack(value, targetType, parameter, culture);
});
result.ParamName.ShouldBe(nameof(targetType));
}
