PortletPlacementContext ppc = new PortletPlacementContextImpl(requestContext.getPage(),portletRegistry);
Fragment a_oFrag = ppc
.getFragmentAtNewCoordinate(new CoordinateImpl(0, 0, 0, 1));
Coordinate a_oCoordinate = ppc.moveUp(a_oFrag);
assertEquals(a_oCoordinate.getOldCol(), 0);
assertEquals(a_oCoordinate.getOldRow(), 1);
assertEquals(a_oCoordinate.getNewCol(), 0);
assertEquals(a_oCoordinate.getNewRow(), 0);