unit IdTestCoder3to4; interface uses IdCoder3to4, IdObjs, IdSys, IdGlobal, IdCoderBinHex4, IdTest; type TTestIdCoder3to4 = class(TIdTest) published procedure TestCoder; end; implementation procedure TTestIdCoder3to4.TestCoder; var aCoder: TIdEncoder3to4; aStream: TIdMemoryStream; s:string; begin aStream := TIdMemoryStream.Create; aCoder := TIdEncoderBinHex4.Create(nil); try WriteStringToStream(AStream, 'abc'); AStream.Position := 0; s := aCoder.Encode(aStream, aStream.Size); Assert(s = 'B@*M', s); finally Sys.FreeAndNil(aStream); Sys.FreeAndNil(aCoder); end; end; initialization TIdTest.RegisterTest(TTestIdCoder3to4); end.