public void ItShouldCallAdderWhenGivenPlusSymbol()
{
_mockQueryParser.Stub(x => x.Parse(Arg <string> .Is.Anything)).Return(new Calculation("+", 2, 3));
_mockAdder.Expect(x => x.Add(Arg.Is(2), Arg.Is(3))).Return(0);
_calculator.Calculate("");
_mockAdder.VerifyAllExpectations();
_mockDivider.VerifyAllExpectations();
_mockMultiplier.VerifyAllExpectations();
_mockSubtractor.VerifyAllExpectations();
}
