public void ColinearTest1()
{
bool actual;
PointF pt1, pt2, pt3;
pt1 = new PointF(0, 0);
pt2 = new PointF(1, 1);
pt3 = new PointF(2, 2);
actual = Tools.Collinear(pt1, pt2, pt3);
Assert.AreEqual(true, actual);
pt1 = new PointH(0, 1);
pt2 = new PointH(1, 1);
pt3 = new PointH(2, 2);
actual = Tools.Collinear(pt1, pt2, pt3);
Assert.AreEqual(false, actual);
}