You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: seqno_recovery.rs
    path of file: ./repos/fjall/tests
    
    the code of the file until where you have to start completion: use fjall::{Config, PartitionCreateOptions};
use test_log::test;

const ITEM_COUNT: usize = 100;

#[test]
fn recover_seqno() -> fjall::Result<()> {
    let folder = tempfile::tempdir()?;

    let mut seqno = 0;

    // NOTE: clippy bug
    #[allow(unused_assignments)]
    {
        let keyspace = Config::new(&folder).open()?;

        let partitions = &[
            keyspace.open_partition("default1", PartitionCreateOptions::default())?,
            keyspace.open_partition("default2", PartitionCreateOptions::default())?,
            keyspace.open_partition("default3", PartitionCreateOptions::default())?,
        ];

        for tree in partitions {
            for x in 0..ITEM_COUNT as u64 {
                let key = x.to_be_bytes();
                let value = nanoid::nanoid!();
                tree.insert(key, value.as_bytes())?;

                seqno += 1;
                assert_eq!(seqno, keyspace.instant());
            }

            for x in 0..ITEM_COUNT as u64 {
                let key: [u8; 8] = (x + ITEM_COUNT as u64).to_be_bytes();
                let value = nanoid::nanoid!();
                tree.insert(key, value.as_bytes())?;

                seqno += 1;
                assert_eq!(seqno, keyspace.instant());
            }
        }

        for tree in partitions {
            assert_eq!(tree.len()?, ITEM_COUNT * 2);
            assert_eq!(
                tree.iter().into_iter().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
            assert_eq!(
                tree.iter().into_iter().rev().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
        }
    }

    for _ in 0..10 {
        let keyspace = Config::new(&folder).open()?;
        assert_eq!(seqno, keyspace.instant());

        let partitions = &[
            keyspace.open_partition("default1", PartitionCreateOptions::default())?,
            keyspace.open_partition("default2", PartitionCreateOptions::default())?,
            keyspace.open_partition("default3", PartitionCreateOptions::default())?,
        ];

        for tree in partitions {
            assert_eq!(tree.len()?, ITEM_COUNT * 2);
            assert_eq!(
                tree.iter().into_iter().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
            assert_eq!(
  
    
fn recover_seqno() -> fjall::Result<()> {
    let folder = tempfile::tempdir()?;

    let mut seqno = 0;

    // NOTE: clippy bug
    #[allow(unused_assignments)]
    {
        let keyspace = Config::new(&folder).open()?;

        let partitions = &[
            keyspace.open_partition("default1", PartitionCreateOptions::default())?,
            keyspace.open_partition("default2", PartitionCreateOptions::default())?,
            keyspace.open_partition("default3", PartitionCreateOptions::default())?,
        ];

        for tree in partitions {
            for x in 0..ITEM_COUNT as u64 {
                let key = x.to_be_bytes();
                let value = nanoid::nanoid!();
                tree.insert(key, value.as_bytes())?;

                seqno += 1;
                assert_eq!(seqno, keyspace.instant());
            }

            for x in 0..ITEM_COUNT as u64 {
                let key: [u8; 8] = (x + ITEM_COUNT as u64).to_be_bytes();
                let value = nanoid::nanoid!();
                tree.insert(key, value.as_bytes())?;

                seqno += 1;
                assert_eq!(seqno, keyspace.instant());
            }
        }

        for tree in partitions {
            assert_eq!(tree.len()?, ITEM_COUNT * 2);
            assert_eq!(
                tree.iter().into_iter().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
            assert_eq!(
                tree.iter().into_iter().rev().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
        }
    }

    for _ in 0..10 {
        let keyspace = Config::new(&folder).open()?;
        assert_eq!(seqno, keyspace.instant());

        let partitions = &[
            keyspace.open_partition("default1", PartitionCreateOptions::default())?,
            keyspace.open_partition("default2", PartitionCreateOptions::default())?,
            keyspace.open_partition("default3", PartitionCreateOptions::default())?,
        ];

        for tree in partitions {
            assert_eq!(tree.len()?, ITEM_COUNT * 2);
            assert_eq!(
                tree.iter().into_iter().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
            assert_eq!(
                tree.iter().into_iter().rev().filter(Result::is_ok).count(),
                ITEM_COUNT * 2
            );
        }
    }

    Ok(())
}