public void ConvertBack_Otherwise_ReturnsExpected(bool value, bool expectedResult)
{
var parameter = (object)null;
var culture = (CultureInfo)null;
var uut = new BooleanInversionValueConverter();
uut.ConvertBack(value, typeof(bool), parameter, culture).ShouldBe(expectedResult);
}
public void ConvertBack_TargetTypeIsNull_ThrowsException()
{
var value = false;
var targetType = (Type)null;
var parameter = (object)null;
var culture = (CultureInfo)null;
var uut = new BooleanInversionValueConverter();
var result = Should.Throw <ArgumentNullException>(() =>
{
uut.ConvertBack(value, targetType, parameter, culture);
});
result.ParamName.ShouldBe(nameof(targetType));
}
public void ConvertBack_ConversionIsInvalid_ThrowsException(object value, Type targetType)
{
var parameter = (object)null;
var culture = (CultureInfo)null;
var uut = new BooleanInversionValueConverter();
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));
}