public void ThrowsWithoutUnderlyingConverter()
{
var invertingConverter = new InvertingConverter();
Assert.Throws <InvalidOperationException>(() => invertingConverter.Convert(
new object(), typeof(object), null, CultureInfo.CurrentCulture));
Assert.Throws <InvalidOperationException>(() => invertingConverter.ConvertBack(
new object(), typeof(object), null, CultureInfo.CurrentCulture));
}
public void InvertsOtherConverter()
{
IValueConverter normalConverter = new IntToStringConverter();
var invertingConverter = new InvertingConverter(normalConverter);
const int convertValue = 123;
const string convertBackValue = "123";
Assert.Equal(
normalConverter.Convert(convertValue, typeof(string), null, null),
invertingConverter.ConvertBack(convertValue, typeof(string), null, null));
Assert.Equal(
normalConverter.ConvertBack(convertBackValue, typeof(string), null, null),
invertingConverter.Convert(convertBackValue, typeof(string), null, null));
}
