public void GetAscii(string unicode, int index, int count, string expected)
{
if (index + count == unicode.Length)
{
if (index == 0)
{
Assert.Equal(expected, new IdnMapping().GetAscii(unicode));
}
Assert.Equal(expected, new IdnMapping().GetAscii(unicode, index));
}
Assert.Equal(expected, new IdnMapping().GetAscii(unicode, index, count));
}