mspec-adapter-error-sample

  [Subject("Calculator ")]
  internal class DummySpec
  {
    class Calculator
    {
      public int add(int a, int b)
      {
        return a+b;
      }
    }

    static Calculator _calculator;
    static int _result = 0;

    Establish context = () =>
    {
      _calculator = new Calculator();
    };

    Because of = () => 
      _result = _calculator.add(1, 2);

    public class when_adding_negative_numbers
    {
      // adding a "because" here just to simulate an error scenario.
      Because of = () =>
        _result = _calculator.add(1, -2);

      It should_add_them = () =>
        _result.ShouldEqual(2);
    }
  }