@Test
void testGetIdWorksForValidId() {

	ByteBuffer id = ByteBuffer.allocate(7);
	id.put(new byte[] { 0 }); // Flags none set for managed
	id.putInt(3129); // offset
	id.putShort((short) 18); // length
	id.rewind();
	ByteBuffer data = fractalHeap.getId(id);
	assertThat(data.position(), is(equalTo(0)));
	assertThat(data.limit(), is(equalTo(18)));
}