public void TryGetToken_ReturnsFailureResult_WhenInputIsNoCharacterOrClassRange()
{
_primitiveParser.TryParseCharacterRange(Arg.Any <IStringStream>()).Returns(_classRangeParserFailure);
_primitiveParser.TryParseCharacter(Arg.Any <IStringStream>()).Returns(_stringParserFailure);
var parser = new CharacterParser(_primitiveParser);
var result = parser.TryGetToken(_stream, out _);
Assert.IsFalse(result.IsSuccess);
_primitiveParser.Received(1).TryParseCharacterRange(Arg.Any <IStringStream>());
_primitiveParser.Received(1).TryParseCharacter(Arg.Any <IStringStream>());
}
protected override IParseResult TryGetTokenWithoutNullCheck(IStringStream inputStream, out IToken token)
{
token = null;
if (EnforceCharacterRangeSeparatorEscaping && IsCharacterRangeSeparator(inputStream))
{
return(new FailureParseResult(inputStream.CurrentPosition, RegSeedErrorType.InvalidRange));
}
var rangeResult = _primitiveParser.TryParseCharacterRange(inputStream);
if (rangeResult.IsSuccess)
{
var rangeTokenLength = (int)(inputStream.CurrentPosition - _initialStreamPosition);
token = new CharacterRangeToken(rangeResult.Value, inputStream.CurrentPosition, rangeTokenLength);
return(new SuccessParseResult());
}
if (!rangeResult.IsSuccess && rangeResult.ErrorType != RegSeedErrorType.None)
{
return(rangeResult);
}
var characterResult = _primitiveParser.TryParseCharacter(inputStream);
if (!characterResult.IsSuccess)
{
return(characterResult);
}
var characterTokenLength = (int)(inputStream.CurrentPosition - _initialStreamPosition);
token = new CharacterToken(characterResult.Value, inputStream.CurrentPosition, characterTokenLength);
return(new SuccessParseResult());
}