async fn should_handle_wrapping_past_max_event_id(path: &str) {
    let mut rng = crate::new_rng();
    let mut fixture = TestFixture::new(&mut rng);

    // Set up an `EventIndexer` cache file as if the server previously stopped at an event with ID
    // just less than the maximum.
    let start_index = Id::MAX - (BUFFER_LENGTH / 2);
    fs::write(
        fixture.storage_dir.path().join("sse_index"),
        start_index.to_le_bytes(),
    )
    .unwrap();

    // Set up a client which will connect at the start of the stream, and another two for once the
    // IDs have wrapped past the maximum value.
    let mut server_behavior = ServerBehavior::new();
    let barrier1 = server_behavior.add_client_sync_before_event(start_index);
    let barrier2 = server_behavior.add_client_sync_before_event(BUFFER_LENGTH / 2);
    let barrier3 = server_behavior.add_client_sync_before_event(BUFFER_LENGTH / 2);
    let server_address = fixture.run_server(server_behavior).await;
    assert_eq!(fixture.first_event_id, start_index);

    // The first client doesn't need a query string, but the second will request to start from an ID
    // from before they wrapped past the maximum value, and the third from event 0.
    let url1 = url(server_address, path, None);
    let url2 = url(server_address, path, Some(start_index + 1));
    let url3 = url(server_address, path, Some(0));
    let (expected_events1, final_id1) = fixture.all_filtered_events(path);
    let (expected_events2, final_id2) = fixture.filtered_events(path, start_index + 1);
    let (expected_events3, final_id3) = fixture.filtered_events(path, 0);
    let (received_events1, received_events2, received_events3) = join!(
        subscribe(&url1, barrier1, final_id1, "client 1"),
        subscribe(&url2, barrier2, final_id2, "client 2"),
        subscribe(&url3, barrier3, final_id3, "client 3"),
    );
    fixture.stop_server().await;

    assert_eq!(received_events1.unwrap(), expected_events1);
    assert_eq!(received_events2.unwrap(), expected_events2);
    assert_eq!(received_events3.unwrap(), expected_events3);
}
/// Check that a server handles wrapping round past the maximum value for event IDs.
Check that a server handles wrapping round past the maximum value for event IDs.
Check that a server handles wrapping round past the maximum value for event IDs .
async fn should_handle_wrapping_past_max_event_id(path: &str) {
    let mut rng = crate::new_rng();
    let mut fixture = TestFixture::new(&mut rng);
    // Set up an `EventIndexer` cache file as if the server previously stopped at an event with ID
    // just less than the maximum.
    let start_index = Id::MAX - (BUFFER_LENGTH / 2);
    fs::write(
        fixture.storage_dir.path().join("sse_index"),
        start_index.to_le_bytes(),
    )
    .unwrap();
    // Set up a client which will connect at the start of the stream, and another two for once the
    // IDs have wrapped past the maximum value.
    let mut server_behavior = ServerBehavior::new();
    let barrier1 = server_behavior.add_client_sync_before_event(start_index);
    let barrier2 = server_behavior.add_client_sync_before_event(BUFFER_LENGTH / 2);
    let barrier3 = server_behavior.add_client_sync_before_event(BUFFER_LENGTH / 2);
    let server_address = fixture.run_server(server_behavior).await;
    assert_eq!(fixture.first_event_id, start_index);
    // The first client doesn't need a query string, but the second will request to start from an ID
    // from before they wrapped past the maximum value, and the third from event 0.
    let url1 = url(server_address, path, None);
    let url2 = url(server_address, path, Some(start_index + 1));
    let url3 = url(server_address, path, Some(0));
    let (expected_events1, final_id1) = fixture.all_filtered_events(path);
    let (expected_events2, final_id2) = fixture.filtered_events(path, start_index + 1);
    let (expected_events3, final_id3) = fixture.filtered_events(path, 0);
    let (received_events1, received_events2, received_events3) = join!(
        subscribe(&url1, barrier1, final_id1, "client 1"),
        subscribe(&url2, barrier2, final_id2, "client 2"),
        subscribe(&url3, barrier3, final_id3, "client 3"),
    );
    fixture.stop_server().await;
    assert_eq!(received_events1.unwrap(), expected_events1);
    assert_eq!(received_events2.unwrap(), expected_events2);
    assert_eq!(received_events3.unwrap(), expected_events3);
}
async fn should_handle_wrapping_past_max_event_id ( path : & str ) { let mut rng = crate :: new_rng ( ) ; let mut fixture = TestFixture :: new ( & mut rng ) ; // Set up an `EventIndexer` cache file as if the server previously stopped at an event with ID // just less than the maximum. let start_index = Id :: MAX - ( BUFFER_LENGTH / 2 ) ; fs :: write ( fixture . storage_dir . path ( ) . join ( " " ) , start_index . to_le_bytes ( ) , ) . unwrap ( ) ; // Set up a client which will connect at the start of the stream, and another two for once the // IDs have wrapped past the maximum value. let mut server_behavior = ServerBehavior :: new ( ) ; let barrier1 = server_behavior . add_client_sync_before_event ( start_index ) ; let barrier2 = server_behavior . add_client_sync_before_event ( BUFFER_LENGTH / 2 ) ; let barrier3 = server_behavior . add_client_sync_before_event ( BUFFER_LENGTH / 2 ) ; let server_address = fixture . run_server ( server_behavior ) . await ; assert_eq ! ( fixture first_event_id start_index ) ; // The first client doesn't need a query string, but the second will request to start from an ID // from before they wrapped past the maximum value, and the third from event 0. let url1 = url ( server_address , path , None ) ; let url2 = url ( server_address , path , Some ( start_index + 1 ) ) ; let url3 = url ( server_address , path , Some ( 0 ) ) ; let ( expected_events1 , final_id1 ) = fixture . all_filtered_events ( path ) ; let ( expected_events2 , final_id2 ) = fixture . filtered_events ( path , start_index + 1 ) ; let ( expected_events3 , final_id3 ) = fixture . filtered_events ( path , 0 ) ; let ( received_events1 , received_events2 , received_events3 ) = join ! ( subscribe ( url1 barrier1 final_id1 " " ) subscribe ( url2 barrier2 final_id2 " " ) subscribe ( url3 barrier3 final_id3 " " ) ) ; fixture . stop_server ( ) . await ; assert_eq ! ( received_events1 unwrap ( ) expected_events1 ) ; assert_eq ! ( received_events2 unwrap ( ) expected_events2 ) ; assert_eq ! ( received_events3 unwrap ( ) expected_events3 ) ; }
Check that a server handles wrapping round past the maximum value for event IDs.
Check that a server handles wrapping round past the maximum value for event IDs .
path
&str
path
&str