public void EncodingWorksForExactValue()
{
var result = _encodeService.Encode("Hello");
var expectedResult =
StringToMorseTextTranlator.Translate(".... . .-.. .-.. ---");
Assert.Equal(result, expectedResult);
}
public void DecodeThorwsExceptionWhenSymbolIsInvalid()
{
var text = ".......- -.-.";
var message = StringToMorseTextTranlator.Translate(text);
var exception = Assert.Throws <FormatException>(() => _decodeService.Decode(message));
Assert.Equal("Symbol is undecodable", exception.Message);
}
public void DecodeWorksForExactValue()
{
var text = ".- -... -.-. -..";
var message = StringToMorseTextTranlator.Translate(text);
var result = _decodeService.Decode(message);
Assert.Equal("ABCD", result);
}
private static void Test2()
{
var wavFileHandler = new WavFileHandler();
var text = ".- ---. . -";
var message = StringToMorseTextTranlator.Translate(text);
wavFileHandler.CreateFile("a", message);
var decodedMessage = wavFileHandler.ReadFromFile("a.wav");
Console.Write(string.Join(",", decodedMessage.ToString()));
Console.WriteLine();
}
private static void Test()
{
var translator = new MorseToEngTranslator();
var morseDecodeService = new MorseDecodeService(translator);
var morseEncodeService = new MorseEncodeService(translator);
var element = new MorseElement(".");
var text = ".-. -.- .- .";
var message = StringToMorseTextTranlator.Translate(text);
Console.WriteLine(morseDecodeService.Decode(message));
var encoded = morseEncodeService.Encode("Hello world");
Console.Write(encoded);
}
public MorseText ReadFromFile(string filepath)
{
var wav = File.ReadAllBytes(filepath);
var dataBeginIndex = GetSoundBeginningIndex(wav);
var decodedMessage = "";
var beenSilent = false;
for (var i = dataBeginIndex; i < wav.Length;)
{
switch (wav[i])
{
case (AMPLITUDE & 0xff):
{
decodedMessage += '-';
i += 4 * LONG_BEEP;
beenSilent = false;
break;
}
case (2 * AMPLITUDE & 0xff):
{
decodedMessage += '.';
i += 4 * SHORT_BEEP;
beenSilent = false;
break;
}
case 0:
{
i += 4 * SILENCE;
if (beenSilent)
{
decodedMessage += " ";
}
beenSilent = true;
break;
}
default:
{
throw new FormatException("Wrong wav format");
break;
}
}
}
var text = StringToMorseTextTranlator.Translate(decodedMessage);
return(text);
}
