public void Should_ExecutePrintResultMethodWithArgument5OfOutputService_WhenDoing7Substract2()
{
//arrange
var clientMock = new Mock<IOutputService>();
var calculator = new CalculatorEngine(clientMock.Object);
calculator.FirstArg = 7;
calculator.SecondArg = 2;
string expected = "5,00000";
//act
calculator.Substract();
//Assert
clientMock.Verify(x => x.PrintData(expected), Times.Exactly(1));
}
public void Should_Return2_WhenDoing5Point1Substract3Point1()
{
//arrange
var clientMock = new Mock<IOutputService>();
var calculator = new CalculatorEngine(clientMock.Object);
calculator.FirstArg = 5.1;
calculator.SecondArg = 3.1;
string expected = "2,00000";
//act
calculator.Substract();
//asssert
Assert.AreEqual(calculator.Result, expected);
}