public static void EncodeDecodeTest()
{
var str = Yielder.Repeat(() => (char)DefaultRNG.I32.Next(32, 0xd800)).Take(1048576).ToList().Join();
var encoded = new UTF8Encoding(false).GetBytes(str);
Assert.Equal(encoded, str.Encode());
Assert.Equal(encoded, str.Encode(new UTF8Encoding(false)));
Assert.Equal(encoded, str.Encode("utf-8"));
Assert.Equal(str, encoded.Decode());
Assert.Equal(str, encoded.Decode(Encoding.UTF8));
Assert.Equal(str, encoded.Decode("utf-8"));
}