public void WhenLookingAtNumber(long n, long expectedResult)
{
var parser = new LookAndSayParser();
var result = parser.LookAndSay(n);
Assert.AreEqual(expectedResult, result);
}
public void WhenLookingAtNegativeNumber()
{
var parser = new LookAndSayParser();
Assert.Throws <ArgumentException>(() => parser.LookAndSay(-1));
}
