RowLevelPaginationShiftState stateR2 = new RowLevelPaginationShiftState();
stateR2.reuse(null, init, null);
stateR2.increaseShift(10);
BlockLevelPaginationShiftState stateCC1 = new BlockLevelPaginationShiftState();
stateCC1.reuse(null, stateR2, null);
assertEquals(20, stateCC1.getShiftForNextChild());
stateCC1.increaseShift(3);
stateCC1.pop(null);
assertEquals(20, stateR2.getShiftForNextChild());