@Test
	public void getequalISBNtest() throws Exception{
		bookcollectb.getequalISBN(1315);
		try{
			ObjectInputStream osi = new ObjectInputStream(new FileInputStream("bookcollectiontest.txt"));
			bookcollectb.setBookCount(osi.readInt());
			for( int i= 0; i< bookcollectb.getBookCount();i++){
				Book bs = (Book)osi.readObject();
				if(bs.ISBN == 1315)
					assertTrue(true);
			}
			assertTrue(false);
		}catch(Exception e){
		}
	}