public void EnteringTheEqualSignDisplaysTheResult() { sut = sut.EnterDigit('3'); sut = sut.EnterDigit('3'); sut = sut.EnterEqual(); Assert.AreEqual("55", sut.Display); }
public void FurtherOperatorsExecuteThePreviousCalculation() { sut = sut.EnterDigit('3'); sut = sut.EnterDigit('3'); sut = sut.EnterOperator(new PlusOperator()); sut = sut.EnterDigit('2'); sut = sut.EnterDigit('2'); sut = sut.EnterEqual(); Assert.AreEqual("77", sut.Display); }