public void testExtent(int a, int b, int c, int d) throws IOException {
ItemLocationBox iloc = new ItemLocationBox();
iloc.setVersion(1);
iloc.setBaseOffsetSize(a);
iloc.setIndexSize(b);
iloc.setLengthSize(c);
iloc.setOffsetSize(d);
ItemLocationBox.Extent e1 = iloc.createExtent(123, 124, 125);
ByteBuffer bb = ByteBuffer.allocate(e1.getSize());
e1.getContent(bb);
Assert.assertTrue(bb.remaining() == 0);
bb.rewind();
ItemLocationBox.Extent e2 = iloc.createExtent(bb);
Assert.assertEquals(e1, e2);
}
public void testSimpleRoundWithEntriesAndExtentsTrip(
int baseOffsetSize, int indexSize, int lengthSize, int offsetSize) throws IOException {
ItemLocationBox ilocOrig = new ItemLocationBox();
ilocOrig.setVersion(1);
ilocOrig.setBaseOffsetSize(baseOffsetSize);
ilocOrig.setIndexSize(indexSize);
ilocOrig.setLengthSize(lengthSize);
ilocOrig.setOffsetSize(offsetSize);
List<ItemLocationBox.Extent> extents = new LinkedList<ItemLocationBox.Extent>();
ItemLocationBox.Extent extent = ilocOrig.createExtent(12, 13, 1);
extents.add(extent);
ItemLocationBox.Item item = ilocOrig.createItem(12, 0, 13, 123, extents);
ilocOrig.setItems(Collections.singletonList(item));
ByteBuffer bb = ByteBuffer.allocate(l2i(ilocOrig.getSize()));
ilocOrig.getBox(new ByteBufferByteChannel(bb));
bb.rewind();
IsoFile isoFile = new IsoFile(new ByteBufferByteChannel(bb));
ItemLocationBox iloc = (ItemLocationBox) isoFile.getBoxes().get(0);
Assert.assertEquals(ilocOrig.getBaseOffsetSize(), iloc.getBaseOffsetSize());
Assert.assertEquals(ilocOrig.getContentSize(), iloc.getContentSize());
Assert.assertEquals(ilocOrig.getIndexSize(), iloc.getIndexSize());
Assert.assertEquals(ilocOrig.getLengthSize(), iloc.getLengthSize());
Assert.assertEquals(ilocOrig.getOffsetSize(), iloc.getOffsetSize());
Assert.assertEquals(ilocOrig.getItems(), iloc.getItems());
}