@Override public HashSlotCursor8byteKey cursor() {
        return new Cursor();
    }
@Test
    public void testCursor_valueAddress() {
        final SlotAssignmentResult slot = insert(random.nextLong());

        HashSlotCursor8byteKey cursor = hsa.cursor();
        cursor.advance();
        assertEquals(slot.address(), cursor.valueAddress());
    }