assertEquals(od.getBoxWidth(), boxWidth);
assertEquals(od.getBoxHeight(), boxHeight);
// move viewport to end of alignment
moveViewport(0, 525 - viewHeight - lastHidden - 1);
assertEquals(od.getBoxX(), 0);
assertEquals(od.getBoxWidth(), boxWidth);
assertEquals(od.getBoxHeight(), boxHeight);
// move viewport to end of alignment
moveViewport(0, 525 - viewHeight - lastHidden - 1);
assertEquals(od.getBoxX(), 0);