public void Add_StateUnderTest1_ExpectedBehavior()
{
// Arrange
var addMethodMock = new Mock <IAddMethod>();
addMethodMock.Setup(x => x.Add(3, 4)).Returns(7);
var calculator = new EasyCalculator();
// Act
var actual = calculator.Add(addMethodMock.Object, 3, 5);
// Assert
Assert.IsNotEmpty(actual.ToString());
addMethodMock.Verify(y => y.Add(It.IsAny <int>(), It.IsAny <int>()));
}
public void Add_StateUnderTest_ExceptionThrowed()
{
// Arrange
const string expectedMessage = "Operation is not valid due to the current state of the object.";
var addMethodMock = new Mock <IAddMethod>();
addMethodMock.Setup(x => x.Add(It.IsAny <int>(), It.IsAny <int>())).Throws(new InvalidOperationException());
var calculator = new EasyCalculator();
// Act
var actual = Assert.Throws <InvalidOperationException>(() => calculator.Add(addMethodMock.Object, 3, 5));
// Assert
Assert.IsNotNull(actual);
Assert.AreEqual(expectedMessage, actual.Message);
addMethodMock.Verify(y => y.Add(It.IsAny <int>(), It.IsAny <int>()));
}
public void Add_StateUnderTest1_ExceptionThrowed()
{
// Arrange
const string expectedMessage = "Exception of type 'System.Exception' was thrown.";
var addMethodMock = new Mock <IAddMethod>();
addMethodMock.Setup(x => x.AdditionalMethod()).Throws(new Exception());
var calculator = new EasyCalculator();
// Act
var actual = Assert.Throws <Exception>(() => calculator.Add(addMethodMock.Object, 3, 5));
// Assert
Assert.IsNotNull(actual);
Assert.AreEqual(expectedMessage, actual.Message);
addMethodMock.Verify(y => y.AdditionalMethod(), Times.Once);
addMethodMock.Verify(y => y.Add(It.IsAny <int>(), It.IsAny <int>()), Times.Never);
}
