KeiSeiKit-1.0/_primitives/_rust/kei-tty/tests/sse_parsing.rs
Parfii-bot 0be354a920 KeiSeiKit-public — clean state
Single-commit clean baseline after security scrub of niche-tells,
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Contents:
- 100 Rust crates (_primitives/_rust/)
- 37 agent manifests (_manifests/) + generated specs (_generated/)
- 67 user-invocable skills (skills/)
- 33 hooks (hooks/)
- Composition blocks (_blocks/)
- Documentation (docs/, README.md)
- TS adapter packages (_ts_packages/)
- Assembler (_assembler/)
- Roles (_roles/)
- Templates (_templates/)
- Forgejo CI (.forgejo/)

Author: Denis Parfionovich <info@greendragon.info>

License: see LICENSE.
2026-05-01 12:09:03 +08:00

101 lines
3.6 KiB
Rust

//! SSE-frame parsing — feeds canned chunked bytes through
//! `flush_complete_frames` and asserts the resulting `ChatEvent` stream.
//!
//! We do NOT spin up a real reqwest server here; the parser is exercised
//! directly because it is the only part of the client that has logic worth
//! testing in isolation. The HTTP path is covered manually against a live
//! daemon (see README).
use kei_tty::client::flush_complete_frames;
use kei_tty::types::ChatEvent;
/// Drain a fully-formed SSE response in one go.
#[test]
fn full_response_token_sentiment_done() {
let mut buf = String::from(
"data: {\"type\":\"token\",\"text\":\"Hel\"}\n\n\
data: {\"type\":\"token\",\"text\":\"lo\"}\n\n\
data: {\"type\":\"sentiment\",\"tag\":\"happy\",\"confidence\":0.9}\n\n\
data: {\"type\":\"done\",\"conversation_id\":\"abc\"}\n\n",
);
let mut events = Vec::new();
flush_complete_frames(&mut buf, &mut |e| events.push(e));
assert_eq!(events.len(), 4);
assert_eq!(events[0], ChatEvent::Token("Hel".into()));
assert_eq!(events[1], ChatEvent::Token("lo".into()));
matches!(events[2], ChatEvent::Sentiment { .. });
assert_eq!(
events[3],
ChatEvent::Done {
conversation_id: "abc".into()
}
);
assert!(buf.is_empty(), "buffer should be empty after full drain");
}
/// Simulate chunked TCP delivery: bytes arrive split across `\n\n`
/// boundaries. The parser must hold partial state across calls.
#[test]
fn chunked_delivery_preserves_partial_frames() {
let chunks = [
"data: {\"type\":\"token\",\"text\":\"a\"}\n",
"\ndata: {\"type\":\"to",
"ken\",\"text\":\"b\"}\n\n",
"data: {\"type\":\"done\",\"conversation_id\":\"x\"}\n\n",
];
let mut buf = String::new();
let mut events = Vec::new();
for c in chunks {
buf.push_str(c);
flush_complete_frames(&mut buf, &mut |e| events.push(e));
}
assert_eq!(events.len(), 3);
assert_eq!(events[0], ChatEvent::Token("a".into()));
assert_eq!(events[1], ChatEvent::Token("b".into()));
assert_eq!(
events[2],
ChatEvent::Done {
conversation_id: "x".into()
}
);
}
/// Comments (`:` lines) and `event:` / `id:` headers must be ignored.
#[test]
fn comments_and_headers_ignored() {
let mut buf = String::from(
": ratatui keep-alive\n\
event: chat\n\
id: 42\n\
data: {\"type\":\"error\",\"message\":\"oops\"}\n\n",
);
let mut events = Vec::new();
flush_complete_frames(&mut buf, &mut |e| events.push(e));
assert_eq!(events.len(), 1);
assert_eq!(events[0], ChatEvent::Error("oops".into()));
}
/// Multi-line `data:` fields are concatenated with `\n` per W3C spec.
#[test]
fn multi_line_data_concatenates() {
let mut buf = String::from("data: line1\ndata: line2\n\n");
let mut events = Vec::new();
flush_complete_frames(&mut buf, &mut |e| events.push(e));
// "line1\nline2" is not valid JSON — parser yields no event but does
// not panic; buffer is fully drained.
assert!(events.is_empty());
assert!(buf.is_empty());
}
/// Future event tags surface as `Other` rather than dropping the frame.
#[test]
fn unknown_event_tag_surfaces_as_other() {
let mut buf = String::from("data: {\"type\":\"future_thing\",\"x\":1}\n\n");
let mut events = Vec::new();
flush_complete_frames(&mut buf, &mut |e| events.push(e));
assert_eq!(events.len(), 1);
match &events[0] {
ChatEvent::Other(t) => assert_eq!(t, "future_thing"),
_ => panic!("expected Other, got {:?}", events[0]),
}
}