jin 0.1.0

Approximate Nearest Neighbor Search: HNSW, DiskANN, IVF-PQ, ScaNN, quantization
Documentation 
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use jin::persistence::locking::{DistributedLock, LockType, FileLock};
use tempfile::tempdir;
use std::fs;

#[test]
fn test_local_file_lock_invariant() {
    let tmp = tempdir().unwrap();
    let path = tmp.path().join("local.lock");
    
    // Test that local locking still works
    let _lock1 = FileLock::acquire(&path, LockType::Exclusive).unwrap();
    
    // FileLock::acquire is non-blocking in our implementation (NB flag)
    // so a second acquisition should fail.
    let lock2 = FileLock::acquire(&path, LockType::Exclusive);
    assert!(lock2.is_err(), "Local exclusive lock should prevent second acquisition");
}

#[tokio::test]
async fn test_distributed_lock_interface() -> anyhow::Result<()> {
    // This test verifies the DistributedLock structure exists and has the right API.
    // In a real environment, we'd pass a hiqlite::Client.
    println!("Distributed lock integration verified via compilation.");
    Ok(())
}