public void MouseDown_AddingNewPoint_TrueAddedFlaseNotAdded(bool leftButtonClick)
{
int pointsNumber = 0;
GraphPrimitive pen = getPen();
pen.OnDrawPrimitiveInteractiveState += (points, p) => { pointsNumber = points.Count; };
pen.MouseDown(leftButtonClick, false, new Point(1, 1));
Assert.AreEqual(pointsNumber, leftButtonClick ? 1 : 0);
}
