public void Test_Bezier_curve()
{
var curve = new Bezier_curve();
Point2d[] result = new Point2d[6];
Point2d[] coordinates = new Point2d[4];
coordinates[0] = new Point2d(1, 1);
coordinates[1] = new Point2d(2, 2);
coordinates[2] = new Point2d(3, 1);
coordinates[3] = new Point2d(4, 2);
curve.Cubic_curve(coordinates, 6, result);
var expected = new Point2d[6];
expected[0] = new Point2d(1, 1);
expected[1] = new Point2d(1.6, 1.392);
expected[2] = new Point2d(2.2, 1.496);
expected[3] = new Point2d(2.8, 1.504);
expected[4] = new Point2d(3.4, 1.608);
expected[5] = new Point2d(4, 2);
for (var i = 0; i < 6; i++)
{
Assert.IsTrue(Point2d.Abs(expected[i] - result[i]) < 0.0001d);
}
}