public void ParseLine_Should_Throw_Argument_Exception()
{
string input = "This is a string that is not in a valid format.";
Assert.Throws <ArgumentException>(() => HappinessCalculator.ParseLine(input));
}
public void ParseLine_Should_Return_Tuple_With_Seating_Arrangement(string line, string expectedPerson, string expectedNextTo, int expectedHappiness)
{
((string person, string nextTo), int happiness)seatingArrangement = HappinessCalculator.ParseLine(line);
Assert.Equal(((expectedPerson, expectedNextTo), expectedHappiness), seatingArrangement);
}