public IEnumerable <IDanceStep> ParseSteps(string input)
{
var rawSteps = input.Split(",", StringSplitOptions.RemoveEmptyEntries);
List <IDanceStep> steps = new List <IDanceStep>();
foreach (var rawStep in rawSteps)
{
switch (rawStep.First())
{
case 's':
steps.Add(Spin.CreateFromString(rawStep));
break;
case 'x':
steps.Add(Exchange.CreateFromString(rawStep));
break;
case 'p':
steps.Add(Partner.CreateFromString(rawStep));
break;
default:
throw new Exception("Unrecognized dance format: " + rawStep);
}
}
return(steps);
}
public void CreateFromStrings()
{
var spin = Spin.CreateFromString("s1");
Assert.Equal(1, spin.Amount);
spin = Spin.CreateFromString("s34233");
Assert.Equal(34233, spin.Amount);
}