public void TestScale()
{
ShapeFactory sf = new CircleFactory();
Circle myCircle = (Circle)sf.Create2dShape();
myCircle.SetCenter(1, 2);
myCircle.SetRadius(5);
Assert.AreEqual(1, myCircle.GetCenter().X, 0);
Assert.AreEqual(2, myCircle.GetCenter().Y, 0);
Assert.AreEqual(5, myCircle.GetRadius(), 0);
myCircle.Scale(3);
Assert.AreEqual(1, myCircle.GetCenter().X, 0);
Assert.AreEqual(2, myCircle.GetCenter().Y, 0);
Assert.AreEqual(15, myCircle.GetRadius(), 0);
myCircle.Scale(0.2);
Assert.AreEqual(1, myCircle.GetCenter().X, 0);
Assert.AreEqual(2, myCircle.GetCenter().Y, 0);
Assert.AreEqual(3, myCircle.GetRadius(), 0);
try
{
myCircle.Scale(double.PositiveInfinity);
Assert.Fail("Expected exception not thrown");
}
catch (Exception)
{
// ignore
}
try
{
myCircle.Scale(double.NegativeInfinity);
Assert.Fail("Expected exception not thrown");
}
catch (Exception)
{
// ignore
}
try
{
myCircle.Scale(double.NaN);
Assert.Fail("Expected exception not thrown");
}
catch (Exception)
{
// ignore
}
}
public void TestComputeArea()
{
ShapeFactory sf = new CircleFactory();
Circle myCircle = (Circle)sf.Create2dShape();
myCircle.SetCenter(1, 2);
myCircle.SetRadius(5);
Assert.AreEqual(78.53975, myCircle.ComputeArea(), 0.0001);
myCircle = new Circle(1, 2, 4.234);
Assert.AreEqual(56.3185174, myCircle.ComputeArea(), 0.0001);
myCircle = new Circle(1, 2, 0);
Assert.AreEqual(0, myCircle.ComputeArea(), 0);
}
public void TestMove()
{
ShapeFactory sf = new CircleFactory();
Circle myCircle = (Circle)sf.Create2dShape();
myCircle.SetCenter(1, 2);
myCircle.SetRadius(5);
Assert.AreEqual(1, myCircle.GetCenter().X, 0);
Assert.AreEqual(2, myCircle.GetCenter().Y, 0);
Assert.AreEqual(5, myCircle.GetRadius(), 0);
myCircle.Move(3, 4);
Assert.AreEqual(4, myCircle.GetCenter().X, 0);
Assert.AreEqual(6, myCircle.GetCenter().Y, 0);
Assert.AreEqual(5, myCircle.GetRadius(), 0);
myCircle.Move(0.123, 0.456);
Assert.AreEqual(4.123, myCircle.GetCenter().X, 0);
Assert.AreEqual(6.456, myCircle.GetCenter().Y, 0);
Assert.AreEqual(5, myCircle.GetRadius(), 0);
myCircle.Move(-0.123, -0.456);
Assert.AreEqual(4, myCircle.GetCenter().X, 0);
Assert.AreEqual(6, myCircle.GetCenter().Y, 0);
Assert.AreEqual(5, myCircle.GetRadius(), 0);
myCircle.Move(-12, -26);
Assert.AreEqual(-8, myCircle.GetCenter().X, 0);
Assert.AreEqual(-20, myCircle.GetCenter().Y, 0);
Assert.AreEqual(5, myCircle.GetRadius(), 0);
try
{
myCircle.Move(double.PositiveInfinity, 1);
Assert.Fail("Expected exception not thrown");
}
catch (ShapeException e)
{
Assert.AreEqual("Invalid delta-x value", e.Message);
}
try
{
myCircle.Move(double.NegativeInfinity, 1);
Assert.Fail("Expected exception not thrown");
}
catch (ShapeException e)
{
Assert.AreEqual("Invalid delta-x value", e.Message);
}
try
{
myCircle.Move(double.NaN, 1);
Assert.Fail("Expected exception not thrown");
}
catch (ShapeException e)
{
Assert.AreEqual("Invalid delta-x value", e.Message);
}
try
{
myCircle.Move(1, double.PositiveInfinity);
Assert.Fail("Expected exception not thrown");
}
catch (ShapeException e)
{
Assert.AreEqual("Invalid delta-y value", e.Message);
}
try
{
myCircle.Move(1, double.PositiveInfinity);
Assert.Fail("Expected exception not thrown");
}
catch (ShapeException e)
{
Assert.AreEqual("Invalid delta-y value", e.Message);
}
try
{
myCircle.Move(1, double.NaN);
Assert.Fail("Expected exception not thrown");
}
catch (ShapeException e)
{
Assert.AreEqual("Invalid delta-y value", e.Message);
}
}
