this.selectionLayer.setSelectedCell(4, 2);
assertEquals(4, this.selectionLayer.getLastSelectedCell().getColumnPosition());
assertEquals(2, this.selectionLayer.getLastSelectedCell().getRowPosition());
// move 24 steps up
this.viewportLayer.doCommand(new MoveSelectionCommand(MoveDirectionEnum.UP, 24, false, false));
assertEquals(4, this.selectionLayer.getLastSelectedCell().getColumnPosition());
assertEquals(8, this.selectionLayer.getLastSelectedCell().getRowPosition());
}