### Question:
PageList { boolean isBoundTo( long pageRef, int swapperId, long filePageId ) { long address = offPageBinding( pageRef ); long expectedBinding = (filePageId << SHIFT_PARTIAL_FILE_PAGE_ID) + swapperId; long actualBinding = UnsafeUtil.getLong( address ) >>> SHIFT_SWAPPER_ID; return expectedBinding == actualBinding; } PageList( int pageCount, int cachePageSize, MemoryAllocator memoryAllocator, SwapperSet swappers,
              long victimPageAddress, long bufferAlignment );   PageList( PageList pageList );   }### Answer:
@Test public void unboundPageMustNotBeBoundToAnything() { assertFalse( pageList.isBoundTo( pageRef, (short) 0, 0 ) ); }