public void Test_ExtRect()
{
ExtRect rt = ExtRect.Create(0, 0, 9, 9);
Assert.AreEqual(0, rt.Left);
Assert.AreEqual(0, rt.Top);
Assert.AreEqual(9, rt.Right);
Assert.AreEqual(9, rt.Bottom);
Assert.AreEqual(10, rt.GetHeight());
Assert.AreEqual(10, rt.GetWidth());
rt = ExtRect.CreateBounds(0, 0, 10, 10);
Assert.AreEqual(0, rt.Left);
Assert.AreEqual(0, rt.Top);
Assert.AreEqual(9, rt.Right);
Assert.AreEqual(9, rt.Bottom);
Assert.AreEqual(10, rt.GetHeight());
Assert.AreEqual(10, rt.GetWidth());
Assert.AreEqual("{X=0,Y=0,Width=10,Height=10}", rt.ToString());
Assert.IsTrue(rt.Contains(5, 5));
rt.Inflate(3, -2);
Assert.AreEqual("{X=3,Y=-2,Width=4,Height=14}", rt.ToString());
rt.Offset(2, 5);
Assert.AreEqual("{X=5,Y=3,Width=4,Height=14}", rt.ToString());
rt = rt.GetOffset(10, 10);
Assert.AreEqual("{X=15,Y=13,Width=4,Height=14}", rt.ToString());
Assert.IsTrue(rt.IntersectsWith(ExtRect.Create(16, 14, 20, 20)));
rt = ExtRect.CreateEmpty();
Assert.IsTrue(rt.IsEmpty());
Assert.IsFalse(rt.Contains(5, 5));
}