public async Task SingleLineSuccessTestAsync()
{
var input = "12345";
var lines = await inputLinesParser.ParseAsync(input);
Assert.AreEqual(1, lines.Count());
Assert.AreEqual(input, lines.First().Text);
}
/// <summary>
/// Parse from text
/// </summary>
/// <param name="text">Input text</param>
/// <returns>Parsed result</returns>
public override async Task <Input> ParseAsync(string text)
{
if (string.IsNullOrWhiteSpace(text))
{
throw new ArgumentNullException(nameof(text));
}
try
{
Plateau plateau = null;
InputLine currentLine = null;
List <Rover> rovers = new List <Rover>();
List <CommandSet> roverCommandSets = new List <CommandSet>();
// parse lines
var lines = await inputLinesParser.ParseAsync(text);
var linesQueue = new Queue <InputLine>(lines);
// parse plateau
if (linesQueue.Any())
{
try
{
currentLine = linesQueue.Dequeue();
plateau = await plateauParser.ParseAsync(currentLine.Text);
}
catch (Exception exception)
{
throw new PlateauParserException($"Expected valid plateau initialization at line {currentLine.Number} e.g. 5 5", exception);
}
}
// parse rovers and command sets
while (linesQueue.Any())
{
Rover rover;
CommandSet roverCommandSet;
// parse rover
try
{
currentLine = linesQueue.Dequeue();
rover = await roverParser.ParseAsync(currentLine.Text);
}
catch (Exception exception)
{
throw new RoverParserException($"Expected valid rover initialization at line {currentLine.Number} e.g. 1 2 N", exception);
}
rover.SetPlateau(plateau);
rovers.Add(rover);
// parse rover command set
if (linesQueue.Any())
{
try
{
currentLine = linesQueue.Dequeue();
roverCommandSet = await roverCommandSetParser.ParseAsync(currentLine.Text);
}
catch (Exception exception)
{
throw new CommandSetParserException($"Expected valid rover command set at line {currentLine.Number} e.g. LMLMLMLMM", exception);
}
roverCommandSet.SetRover(rover);
roverCommandSets.Add(roverCommandSet);
}
}
// create new input
var input = new Input(plateau, rovers, roverCommandSets);
// return new input
return(input);
}
catch (Exception exception)
{
throw new InputParserException("Failed to parse input", exception);
}
}
