public void ComputeAreaTest()
{
var point1 = new Point(0, 0);
var point2 = new Point(3, 0);
var point3 = new Point(0, 3);
var area = 9 * .5;
var triangle = new Triangle(point1, point2, point3);
Assert.LessOrEqual(Math.Abs(triangle.ComputeArea() - area), 3.0E-15d);
}
public void CompositeShape()
{
var points = new List <Point>();
var composite = new CompositeShape();
var rpoint1 = new Point(20, 20);
var rpoint2 = new Point(30, 20);
var rpoint3 = new Point(30, 30);
var rpoint4 = new Point(20, 30);
var rect = new Rectangle(rpoint1, rpoint2, rpoint3, rpoint4);
var tpoint1 = new Point(0, 0);
var tpoint2 = new Point(3, 0);
var tpoint3 = new Point(0, 3);
var triangle = new Triangle(tpoint1, tpoint2, tpoint3);
points.Add(rpoint1);
points.Add(rpoint2);
points.Add(rpoint3);
points.Add(rpoint4);
points.Add(tpoint1);
points.Add(tpoint2);
points.Add(tpoint3);
var area = rect.ComputeArea() + triangle.ComputeArea();
composite.Add(rect);
composite.Add(triangle);
Assert.AreEqual(area, composite.ComputeArea());
Assert.AreEqual(Color.Empty, composite.Fill);
Assert.AreEqual(Color.Black, composite.Stroke);
composite.Fill = Color.Aqua;
Assert.AreEqual(Color.Aqua, composite.Fill);
foreach (var point in composite.Points)
{
Assert.Contains(point, points);
}
}
public void RemoveShapeTest()
{
var points = new List <Point>();
var composite = new CompositeShape();
var rpoint1 = new Point(20, 20);
var rpoint2 = new Point(30, 20);
var rpoint3 = new Point(30, 30);
var rpoint4 = new Point(20, 30);
var rect = new Rectangle(rpoint1, rpoint2, rpoint3, rpoint4);
var tpoint1 = new Point(0, 0);
var tpoint2 = new Point(3, 0);
var tpoint3 = new Point(0, 3);
var triangle = new Triangle(tpoint1, tpoint2, tpoint3);
points.Add(rpoint1);
points.Add(rpoint2);
points.Add(rpoint3);
points.Add(rpoint4);
var area = rect.ComputeArea() + triangle.ComputeArea();
composite.Add(rect);
composite.Add(triangle);
Assert.AreEqual(area, composite.ComputeArea());
composite.RemoveShape(triangle);
foreach (var point in composite.Points)
{
Assert.Contains(point, points);
}
Assert.AreEqual(rect.ComputeArea(), composite.ComputeArea());
}