@Test
public void testBresenhamLineLeftDown()
{

    BresenhamLine.calcPoints(5, 2, 0, 0, emitter);
    // 5,2, 4,2, 3,2, 3,1, 2,1, 1,1, 0,0
    assertEquals(Helper.createPointList(5, 2, 4, 2, 3, 1, 2, 1, 1, 0, 0, 0), points);
}