public void Go_AsksForFirstNumberFirst_UsingMoq()
{
// Arrange
var mockScreen = new Mock <IScreen>();
var mockKeypad = new Mock <IKeypad>();
var queue = new Queue <string>(new[] { "5", "*", "2" });
mockKeypad.Setup(keypad => keypad.GetInput()).Returns(() => queue.Dequeue());
var calculatorInterface = new CalculatorInterface(mockScreen.Object, mockKeypad.Object);
// Act
calculatorInterface.Go();
// Assert
mockScreen.Verify(screen => screen.Print("Enter your first number"));
mockScreen.Verify(screen => screen.Print("Enter the operator"));
mockScreen.Verify(screen => screen.Print("Enter your Second Number"));
mockScreen.Verify(screen => screen.Print("Result is 10"));
}
public void Go_AsksForFirstNumberFirst()
{
// Arrange
var screen = new FakeScreen();
var keypad = new FakeKeypad();
keypad.Messages = new List <string>
{
"5",
"2",
"*",
};
var calculatorInterface = new CalculatorInterface(screen, keypad);
// Act
calculatorInterface.Go();
// Assert
Assert.Equal("Enter your first number", screen.Messages[0]);
}