//! Error-path unit scaffolding leveraging mock frame streams.

#[path = "../support/mod.rs"]
mod support;

mod helpers;

use helpers::*;
use niom_turn::stun::{parse_message, ParseError};
use support::mocks;

#[tokio::test(flavor = "current_thread")]
async fn frame_stream_mock_yields_sequence() {
    let mut stream = mocks::MockFrameStream::new();
    stream
        .expect_next_frame()
        .times(1)
        .returning(|| Box::pin(async { Some(malformed_stun_frame()) }));

    let first = stream.next_frame().await;
    assert_eq!(first.as_ref().map(|f| f.len()), Some(3));
}

#[test]
fn parse_message_rejects_short_frame() {
    let err = parse_message(&malformed_stun_frame()).unwrap_err();
    assert!(matches!(err, ParseError::TooShort));
}