public static int StringToInt(string numStr, NumberSystem numberSystem)
{
var numberTable = GetNumberTable(numberSystem);
if (numberTable == null)
{
throw new NotSupportedException($"找不到{numberSystem.ToString()}的算法");
}
var len = numberTable.Length;
var num = 0;
foreach (var n in numStr)
{
if (num == 0)
{
num = numberTable.IndexOf(n);
}
else
{
num = (num * len) + numberTable.IndexOf(n);
}
}
return(num);
}
public void GetNumberSystemErrorMessage(NumberSystem numberSystem)
{
// arrange
// act
var result = NumberConversionStrategy.GetNumberSystemErrorMessage(numberSystem);
// assert
Assert.Contains(numberSystem.ToString(), result);
}
public Response AnalyzeNumber(int numberOfColumn)
{
_numberOfColumn = numberOfColumn;
_currentNumberSystem = NumberSystem.Decimal;
int currentLvl = 0;
string currentStr = _textReader.GetCurrentStr();
NumberComponents component = NumberComponents.Integer;
component = GetComponentFromChar(currentStr[_numberOfColumn]);
currentLvl = _table[currentLvl][component];
while (!IsFinalLvl(currentLvl) && _numberOfColumn < currentStr.Length)
{
_number += currentStr[_numberOfColumn];
_numberOfColumn++;
if (_numberOfColumn < currentStr.Length)
{
component = GetComponentFromChar(currentStr[_numberOfColumn]);
currentLvl = _table[currentLvl][component];
}
else
{
component = NumberComponents.Separator;
currentLvl = _table[currentLvl][component];
}
}
Response response = new Response();
response.numberOfColumn = numberOfColumn + 1;
response.numberStr = _textReader.GetNumberStr();
response.numberSystem = _currentNumberSystem.ToString();
response.value = _number;
response.state = GetStateFromComponent(currentLvl);
while (response.state == States.Error && currentStr[_numberOfColumn] != ' ')
{
response.value += currentStr[_numberOfColumn];
_numberOfColumn++;
if (_numberOfColumn >= currentStr.Length)
{
break;
}
}
response.numberOfCurColumn = _numberOfColumn;
_number = "";
return(response);
}
public void Convert_WithValidFormatError(
string initialEntry,
NumberSystem initialEntrySystem)
{
// arrange
var converter = new NumberConverterViewModel
{
EntryValue = initialEntry,
EntryNumberSystem = initialEntrySystem,
};
// act
converter.Convert();
// assert
Assert.Null(converter.ResultValue);
Assert.Contains(initialEntrySystem.ToString(), converter.ErrorMessage);
Assert.True(converter.HasError);
}
