public void ValidateCalculatorInput_ValidInput_ErrorListEmpty()
{
var calculatorInput = "6+5";
var errors = _validatorService.ValidateCalculatorInput(calculatorInput);
Assert.IsEmpty(errors);
}
private async void Result_Click(object sender, RoutedEventArgs e)
{
if (_isError)
{
return;
}
var str = textBlock.Text;
if (string.IsNullOrEmpty(str))
{
return;
}
var errorList = _validatorService.ValidateCalculatorInput(str);
if (!errorList.Any())
{
textBlock.Text = await _calculationService.CalculateAsync(str, CancellationToken.None);
}
else
{
_isError = true;
var sb = new StringBuilder();
errorList.ForEach(a => sb.Append($"{a} "));
textBlock.Text = sb.ToString();
}
}
public async Task PublishCalculatedResultAsync(string fileName, CancellationToken cancellationToken)
{
var fileLines = await File.ReadAllLinesAsync(fileName, cancellationToken);
var result = new List <string>();
foreach (var line in fileLines)
{
var trimmedLine = line.Replace(" ", "");
var errors = _validatorService.ValidateCalculatorInput(trimmedLine);
if (errors.Any())
{
var stringBuilder = new StringBuilder();
foreach (var error in errors)
{
stringBuilder.Append(error);
stringBuilder.Append(" ");
}
result.Add(stringBuilder.ToString());
continue;
}
var calculatedResult = await _calculationService.CalculateAsync(trimmedLine, cancellationToken);
result.Add(calculatedResult);
}
var indexOf = fileName.LastIndexOf(".", StringComparison.Ordinal);
if (indexOf != -1)
{
var resultFileName =
$"{fileName.Substring(0, indexOf)}_output.{fileName.Substring(indexOf + 1, fileName.Length-indexOf - 1)}";
await File.WriteAllLinesAsync(resultFileName, result);
}
}