public void testBlockExample()
{
// represents outside box.
InitialPaginationShiftState init = new InitialPaginationShiftState();
BlockLevelPaginationShiftState stateCH1 = new BlockLevelPaginationShiftState();
stateCH1.reuse(null, init, null);
stateCH1.increaseShift(5);
stateCH1.pop(null);
assertEquals(5, init.getShiftForNextChild());
BlockLevelPaginationShiftState stateCH2 = new BlockLevelPaginationShiftState();
stateCH2.reuse(null, init, null);
assertEquals(5, stateCH2.getShiftForNextChild());
stateCH2.increaseShift(5);
assertEquals(10, stateCH2.getShiftForNextChild());
stateCH2.pop(null);
assertEquals(10, init.getShiftForNextChild());
BlockLevelPaginationShiftState stateCH3 = new BlockLevelPaginationShiftState();
stateCH3.reuse(null, init, null);
BlockLevelPaginationShiftState stateCC1 = new BlockLevelPaginationShiftState();
stateCC1.reuse(null, stateCH3, null);
stateCC1.increaseShift(5);
stateCC1.pop(null);
assertEquals(15, stateCH3.getShiftForNextChild());
BlockLevelPaginationShiftState stateCC2 = new BlockLevelPaginationShiftState();
stateCC2.reuse(null, stateCH3, null);
stateCC2.increaseShift(5);
stateCC2.pop(null);
stateCH3.pop(null);
assertEquals(20, init.getShiftForNextChild());
}