public void NotCompositeTest()
{
// Arrange
var notComposite = new TestFigure();
var areaCalculator = new Mock <IAreaCalculator>(MockBehavior.Strict);
var calculator = new CompositeAreaCalculator(areaCalculator.Object);
// Act
var calculatedArea = calculator.TryCalculateArea(notComposite);
// Assert
Assert.Null(calculatedArea);
}
public void EmptyCompositeTest()
{
// Arrange
var compositeFigure = new CompositeFigure(Array.Empty <FigureBase>());
var areaCalculator = new Mock <IAreaCalculator>(MockBehavior.Strict);
var compositeCalculator = new CompositeAreaCalculator(areaCalculator.Object);
// Act
var calculatedArea = compositeCalculator.TryCalculateArea(compositeFigure);
// Assert
Assert.AreEqual(0, calculatedArea, 0);
}
public void DuplicateFigureTest()
{
// Arrange
var figure = new TestFigure();
var compositeFigure = new CompositeFigure(new FigureBase[] { figure, figure });
var areaCalculator = new Mock <IAreaCalculator>(MockBehavior.Strict);
areaCalculator.Setup(it => it.CalculateArea(figure)).Returns(10.5);
var compositeCalculator = new CompositeAreaCalculator(areaCalculator.Object);
// Act
var calculatedArea = compositeCalculator.TryCalculateArea(compositeFigure);
// Assert
Assert.AreEqual(21, calculatedArea, DoubleEquality.Epsilon);
}
public void NestedCompositeTest()
{
// Arrange
var figure = new TestFigure();
var innerComposite = new CompositeFigure(Array.Empty <FigureBase>());
var compositeFigure = new CompositeFigure(new FigureBase[] { innerComposite, figure });
var areaCalculator = new Mock <IAreaCalculator>(MockBehavior.Strict);
areaCalculator.Setup(it => it.CalculateArea(figure)).Returns(1.5);
areaCalculator.Setup(it => it.CalculateArea(innerComposite)).Returns(2.1);
var compositeCalculator = new CompositeAreaCalculator(areaCalculator.Object);
// Act
var calculatedArea = compositeCalculator.TryCalculateArea(compositeFigure);
// Assert
Assert.AreEqual(3.6, calculatedArea, DoubleEquality.Epsilon);
}
public void SimpleCompositeTest()
{
// Arrange
var figure1 = new TestFigure();
var figure2 = new TestFigure();
var figure3 = new TestFigure();
var compositeFigure = new CompositeFigure(new FigureBase[] { figure1, figure2, figure3 });
var areaCalculator = new Mock <IAreaCalculator>(MockBehavior.Strict);
areaCalculator.Setup(it => it.CalculateArea(figure1)).Returns(100);
areaCalculator.Setup(it => it.CalculateArea(figure2)).Returns(20);
areaCalculator.Setup(it => it.CalculateArea(figure3)).Returns(5.3);
var compositeCalculator = new CompositeAreaCalculator(areaCalculator.Object);
// Act
var calculatedArea = compositeCalculator.TryCalculateArea(compositeFigure);
// Assert
Assert.AreEqual(125.3, calculatedArea, DoubleEquality.Epsilon);
}