Files
ratatoskr/tests/test_sse_client.py
T
vh a3c92b68dc feat(#11): AdminEvents pane — GET /admin/events SSE (session-filtered)
v1 coverage-audit: the last unbuilt design-brief §5 debug pane. #11's
blocker was already satisfied (admin key carries admin.events.read).
Completes the admin/debug-observability core.

- sse_client.py: AdminEvent dataclass + stream_admin_events — a new
  long-lived SSE consumer for the admin lifecycle stream (envelope
  {id,type,timestamp,data}), admin-scoped (bearer-override), Last-Event-ID
  resume. non-200 -> SseConnectFailed; mid-drop -> SseConnectionDropped.
- tui.py: "AdminEvents" TabPane + _format_admin_event + _admin_event_matches
  (design-brief §6 filter: active-session + non-heartbeat system.*) +
  _stream_admin_events long-lived best-effort worker (unconditional
  on_mount; self-labels not-configured / unavailable / stream-ended).
- Contract-skipped for stream_admin_events (out of #1's turn-SSE scope;
  spec § Admin Event Stream is the reference). TDD: 4 sse_client + 5 tui
  tests. Suite 561 green.
- LIVE-AUTH-PROVEN on :8081 (GET /admin/events -> HTTP 200 under admin key).

Coverage: REST 12/40. Tier 1 debug-observability core complete.
2026-06-30 23:25:34 -07:00

1336 lines
57 KiB
Python

"""Tests for ratatoskr.sse_client per docs/contracts/issues/1.contract.md."""
import httpx
import pytest
import respx
from ratatoskr.sse_client import (
AdminEvent,
AffectUpdate,
AgentNotAvailable,
AwaitingLlmFirstToken,
CancelAlreadyCompleted,
Cancelled,
CancelResult,
CancelTurnNotFound,
Done,
Error,
InvalidLastEventId,
MalformedSseId,
ResumeBufferExpired,
ResumeTurnFinished,
SseConnectFailed,
SseConnectionDropped,
SseId,
Text,
TurnIdFlip,
TurnLaunchUnavailable,
_parse_sse_id,
cancel_turn,
reconnect_turn,
stream_admin_events,
stream_turn,
stream_turn_resilient,
)
_DONE_42_6 = {
"type": "done",
"phase": "succeeded",
"response": "hello",
"model": "m",
"duration_ms": 1,
"usage": {
"prompt_tokens": 0,
"completion_tokens": 0,
"total_tokens": 0,
"cached_input_tokens": 0,
},
}
def _sse_chunk(sse_id: str, body: dict[str, object]) -> bytes:
"""Compose one SSE event in wire format. Trailing blank line per spec."""
import json
return f"id: {sse_id}\ndata: {json.dumps(body)}\n\n".encode()
_EVENT_STREAM = {"content-type": "text/event-stream"}
class _DropStream(httpx.AsyncByteStream):
"""Yield the given chunks, then raise a mid-stream drop (RemoteProtocolError).
Mirrors the inline `_DropAfter` used by TestStreamTurn.test_connection_drop;
hoisted to module scope because the resilient-wrapper tests reuse it.
"""
def __init__(self, chunks: list[bytes]) -> None:
self._chunks = chunks
async def __aiter__(self): # type: ignore[no-untyped-def]
for c in self._chunks:
yield c
raise httpx.RemoteProtocolError("simulated mid-stream drop")
async def aclose(self) -> None:
return None
def _drop_response(chunks: list[bytes]) -> httpx.Response:
return httpx.Response(200, headers=_EVENT_STREAM, stream=_DropStream(chunks))
def _stream_response(content: bytes) -> httpx.Response:
return httpx.Response(200, headers=_EVENT_STREAM, content=content)
class TestParseSseId:
def test_happy_simple(self) -> None:
"""happy_simple [happy,tracer]: '42:3' -> SseId(turn_id=42, seq=3)."""
assert _parse_sse_id("42:3") == SseId(turn_id=42, seq=3)
def test_happy_seq_one(self) -> None:
"""happy_seq_one: smallest valid id per spec — first event of first turn."""
assert _parse_sse_id("1:1") == SseId(turn_id=1, seq=1)
def test_empty(self) -> None:
"""empty [adversarial]: '' -> ValueError."""
with pytest.raises(ValueError):
_parse_sse_id("")
def test_no_colon(self) -> None:
"""no_colon [adversarial]: '42' -> ValueError with '42' in the message."""
with pytest.raises(ValueError, match="42"):
_parse_sse_id("42")
def test_too_many_colons(self) -> None:
"""too_many_colons [adversarial]: '42:3:7' -> ValueError."""
with pytest.raises(ValueError):
_parse_sse_id("42:3:7")
def test_alpha_turn_id(self) -> None:
"""alpha_turn_id [adversarial]: 'foo:3' -> ValueError."""
with pytest.raises(ValueError):
_parse_sse_id("foo:3")
def test_alpha_seq(self) -> None:
"""alpha_seq [adversarial]: '42:bar' -> ValueError."""
with pytest.raises(ValueError):
_parse_sse_id("42:bar")
def test_zero_turn_id(self) -> None:
"""zero_turn_id [adversarial]: '0:3' -> ValueError (turn_id ≥ 1)."""
with pytest.raises(ValueError):
_parse_sse_id("0:3")
def test_zero_seq(self) -> None:
"""zero_seq [adversarial]: '1:0' -> ValueError (seq ≥ 1, spec line 705)."""
with pytest.raises(ValueError):
_parse_sse_id("1:0")
def test_negative_turn_id(self) -> None:
"""negative_turn_id [adversarial]: '-1:3' -> ValueError."""
with pytest.raises(ValueError):
_parse_sse_id("-1:3")
def test_negative_seq(self) -> None:
"""negative_seq [adversarial]: '42:-1' -> ValueError."""
with pytest.raises(ValueError):
_parse_sse_id("42:-1")
def test_trailing_whitespace(self) -> None:
"""trailing_whitespace [adversarial]: '42:3 ' -> ValueError (strict; no strip)."""
with pytest.raises(ValueError):
_parse_sse_id("42:3 ")
def test_truncation(self) -> None:
"""truncation [security]: 5000-char no-colon -> ValueError msg contains only raw[:64]."""
raw = "a" * 5000
with pytest.raises(ValueError) as exc_info:
_parse_sse_id(raw)
assert raw not in str(exc_info.value), "full 5000-char input must not appear in message"
assert raw[:64] in str(exc_info.value), "first 64 chars must appear in message"
def test_non_string_input(self) -> None:
"""PRE-001 hard: raw is a string -- isinstance check before parse."""
with pytest.raises(AssertionError):
_parse_sse_id(42) # type: ignore[arg-type]
with pytest.raises(AssertionError):
_parse_sse_id(None) # type: ignore[arg-type]
class TestStreamTurn:
@respx.mock
async def test_happy_one_text_done(self) -> None:
"""happy_one_text_done: text then done; same turn_id; iter ends after done."""
stream = _sse_chunk("42:1", {"type": "text", "content": "hello"}) + _sse_chunk(
"42:2",
{
"type": "done",
"phase": "succeeded",
"response": "hello",
"model": "glm5-turbo",
"duration_ms": 100,
"usage": {
"prompt_tokens": 0,
"completion_tokens": 0,
"total_tokens": 0,
"cached_input_tokens": 0,
},
},
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
assert len(events) == 2
assert isinstance(events[0], Text)
assert events[0].content == "hello"
assert events[0].sse_id == SseId(42, 1)
assert isinstance(events[1], Done)
assert events[1].sse_id == SseId(42, 2)
assert events[0].sse_id.turn_id == events[1].sse_id.turn_id
@respx.mock
async def test_full_event_vocab(self) -> None:
"""full_event_vocab: one of each variant; all carry parsed sse_id."""
stream = b"".join(
[
_sse_chunk(
"42:1",
{"type": "worker_phase", "phase": "BuildingPrompt", "turn_id": 42},
),
_sse_chunk("42:2", {"type": "thinking", "content": "thinking out loud"}),
_sse_chunk("42:3", {"type": "text", "content": "hello"}),
_sse_chunk(
"42:4",
{
"type": "text_boundary",
"kind": "sentence",
"char_offset": 5,
"ts": "2026-05-21T00:00:00Z",
},
),
_sse_chunk(
"42:5",
{"type": "tool_start", "name": "search", "arguments": {"q": "x"}},
),
_sse_chunk(
"42:6",
{
"type": "tool_result",
"name": "search",
"result": {"n": 1},
"duration_ms": 12,
},
),
_sse_chunk("42:7", {"type": "text", "content": " world"}),
_sse_chunk(
"42:8",
{
"type": "done",
"phase": "succeeded",
"response": "hello world",
"model": "m",
"duration_ms": 50,
"usage": {
"prompt_tokens": 0,
"completion_tokens": 0,
"total_tokens": 0,
"cached_input_tokens": 0,
},
},
),
]
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
types_seen = [type(e).__name__ for e in events]
assert types_seen == [
"WorkerPhase",
"Thinking",
"Text",
"TextBoundary",
"ToolStart",
"ToolResult",
"Text",
"Done",
]
# INV-002: every event carries parsed sse_id with turn_id, seq >= 1
for e in events:
assert e.sse_id.turn_id == 42
assert e.sse_id.seq >= 1
@respx.mock
async def test_error_terminal(self) -> None:
"""error_terminal: text then error; iteration ends; error_code populated."""
stream = _sse_chunk("42:1", {"type": "text", "content": "x"}) + _sse_chunk(
"42:2",
{
"type": "error",
"phase": "failed",
"error_code": "llm_output_invalid",
"message": "boom",
},
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
assert len(events) == 2
assert isinstance(events[1], Error)
assert events[1].error_code == "llm_output_invalid"
assert events[1].message == "boom"
@respx.mock
async def test_cancelled_terminal(self) -> None:
"""cancelled_terminal: cancelled with phase=cancelled, turn_id; iteration ends."""
stream = _sse_chunk(
"42:1",
{
"type": "cancelled",
"phase": "cancelled",
"turn_id": 42,
"reason": "user_cancel",
"partial_message_id": None,
},
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
assert len(events) == 1
assert isinstance(events[0], Cancelled)
assert events[0].turn_id == 42
assert events[0].reason == "user_cancel"
@respx.mock
async def test_session_not_found(self) -> None:
"""session_not_found: 404 -> SseConnectFailed(status=404)."""
respx.post("https://w.example/sessions/missing/messages").mock(
return_value=httpx.Response(404, json={"error": "session_not_found"})
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectFailed) as exc_info:
_ = [e async for e in stream_turn(client, "missing", "hi")]
assert exc_info.value.status == 404
@respx.mock
async def test_malformed_id_no_seq(self) -> None:
"""malformed_id_no_seq: id `42` (missing :seq) -> MalformedSseId; no event yielded."""
stream = b"id: 42\ndata: {\"type\":\"text\",\"content\":\"x\"}\n\n"
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events: list[object] = []
with pytest.raises(MalformedSseId):
async for e in stream_turn(client, "s1", "hi"):
events.append(e)
assert events == []
@respx.mock
async def test_malformed_id_alpha(self) -> None:
"""malformed_id_alpha: id `foo:bar` -> MalformedSseId."""
stream = b"id: foo:bar\ndata: {\"type\":\"text\",\"content\":\"x\"}\n\n"
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(MalformedSseId):
_ = [e async for e in stream_turn(client, "s1", "hi")]
@respx.mock
async def test_turn_id_flip(self) -> None:
"""turn_id_flip: 42:1 then 99:2 -> TurnIdFlip; only first yielded."""
stream = _sse_chunk("42:1", {"type": "text", "content": "a"}) + _sse_chunk(
"99:2", {"type": "text", "content": "b"}
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
yielded: list[Text] = []
with pytest.raises(TurnIdFlip) as exc_info:
async for e in stream_turn(client, "s1", "hi"):
yielded.append(e) # type: ignore[arg-type]
assert len(yielded) == 1
assert exc_info.value.established == 42
assert exc_info.value.got == 99
@respx.mock
async def test_connection_drop(self) -> None:
"""connection_drop: RemoteProtocolError after one text -> SseConnectionDropped((42,1))."""
from ratatoskr.sse_client import SseConnectionDropped
class _DropAfter(httpx.AsyncByteStream):
def __init__(self, chunks: list[bytes]) -> None:
self._chunks = chunks
async def __aiter__(self): # type: ignore[no-untyped-def]
for c in self._chunks:
yield c
raise httpx.RemoteProtocolError("simulated mid-stream drop")
async def aclose(self) -> None:
return None
first = _sse_chunk("42:1", {"type": "text", "content": "x"})
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200,
headers={"content-type": "text/event-stream"},
stream=_DropAfter([first]),
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
yielded: list[Text] = []
with pytest.raises(SseConnectionDropped) as exc_info:
async for e in stream_turn(client, "s1", "hi"):
yielded.append(e) # type: ignore[arg-type]
assert len(yielded) == 1
assert exc_info.value.last_seen_sse_id == SseId(42, 1)
@respx.mock
async def test_clean_eof_before_terminal(self) -> None:
"""INV-001: clean EOF without Done/Error/Cancelled -> SseConnectionDropped."""
from ratatoskr.sse_client import SseConnectionDropped
# One text event, then stream ends cleanly (no terminal).
stream = _sse_chunk("42:1", {"type": "text", "content": "x"})
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
yielded: list[Text] = []
with pytest.raises(SseConnectionDropped) as exc_info:
async for e in stream_turn(client, "s1", "hi"):
yielded.append(e) # type: ignore[arg-type]
assert len(yielded) == 1
assert exc_info.value.last_seen_sse_id == SseId(42, 1)
@respx.mock
async def test_zero_event_eof(self) -> None:
"""INV-001: empty stream (no events at all) -> SseConnectionDropped(None)."""
from ratatoskr.sse_client import SseConnectionDropped
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=b""
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectionDropped) as exc_info:
_ = [e async for e in stream_turn(client, "s1", "hi")]
assert exc_info.value.last_seen_sse_id is None
@respx.mock
async def test_connect_failed_body_truncated(self) -> None:
"""ERROR_ROUTING: SseConnectFailed.body is truncated to <= 1024 bytes."""
big_body = b"x" * 5000
# 500 (not 409/503 — those are now eager turn-launch carve-outs, #331).
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(500, content=big_body)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectFailed) as exc_info:
_ = [e async for e in stream_turn(client, "s1", "hi")]
assert len(exc_info.value.body) <= 1024
assert exc_info.value.body == big_body[:1024]
@respx.mock
async def test_eager_409_agent_not_available(self) -> None:
"""b1 #331: eager 409 -> AgentNotAvailable (SseConnectFailed subclass) with
typed error_code; the turn never streams."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
409,
json={
"detail": {
"error_code": "agent_not_available",
"message": "agent ratatoskr:sindra is unavailable",
}
},
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(AgentNotAvailable) as exc:
_ = [e async for e in stream_turn(client, "s1", "hi")]
assert exc.value.status == 409
assert exc.value.error_code == "agent_not_available"
assert "unavailable" in exc.value.message
assert isinstance(exc.value, SseConnectFailed) # existing handlers still catch
@respx.mock
async def test_eager_503_turn_launch_unavailable_retryable(self) -> None:
"""b1 #331: eager 503 -> TurnLaunchUnavailable (retryable, SseConnectFailed subclass)."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
503,
json={"error_code": "turn_launch_failed", "message": "resource exhausted"},
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(TurnLaunchUnavailable) as exc:
_ = [e async for e in stream_turn(client, "s1", "hi")]
assert exc.value.status == 503
assert exc.value.retryable is True
assert exc.value.error_code == "turn_launch_failed"
assert isinstance(exc.value, SseConnectFailed)
@respx.mock
async def test_eager_409_non_json_body_defaults(self) -> None:
"""b1 #331: eager 409 with a non-JSON body -> AgentNotAvailable with the
status-derived default error_code."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(409, content=b"<html>nope</html>")
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(AgentNotAvailable) as exc:
_ = [e async for e in stream_turn(client, "s1", "hi")]
assert exc.value.error_code == "agent_not_available"
@respx.mock
async def test_eager_503_non_json_body_defaults_not_ready(self) -> None:
"""b2: eager 503 with a non-JSON body -> TurnLaunchUnavailable with the
canonical default error_code `not_ready`."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(503, content=b"<html>nope</html>")
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(TurnLaunchUnavailable) as exc:
_ = [e async for e in stream_turn(client, "s1", "hi")]
assert exc.value.error_code == "not_ready"
assert exc.value.retryable is True
@respx.mock
async def test_no_text_aggregation(self) -> None:
"""no_text_aggregation: consumer yields each text event separately; no concat."""
stream = (
_sse_chunk("42:1", {"type": "text", "content": "hello "})
+ _sse_chunk("42:2", {"type": "text", "content": "world"})
+ _sse_chunk(
"42:3",
{
"type": "done",
"phase": "succeeded",
"response": "hello world",
"model": "m",
"duration_ms": 1,
"usage": {
"prompt_tokens": 0,
"completion_tokens": 0,
"total_tokens": 0,
"cached_input_tokens": 0,
},
},
)
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
texts = [e for e in events if isinstance(e, Text)]
assert [t.content for t in texts] == ["hello ", "world"]
class TestReconnectTurn:
@respx.mock
async def test_happy_resume_from_seq_3(self) -> None:
"""happy_resume_from_seq_3 [scenario,tracer]: replay 42:4,42:5 then live 42:6 done."""
stream = (
_sse_chunk("42:4", {"type": "text", "content": "d"})
+ _sse_chunk("42:5", {"type": "text", "content": "e"})
+ _sse_chunk("42:6", _DONE_42_6)
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in reconnect_turn(client, "s1", "original", "42:3")]
assert len(events) == 3
assert [e.sse_id.seq for e in events] == [4, 5, 6]
assert all(e.sse_id.turn_id == 42 for e in events)
assert isinstance(events[-1], Done)
@respx.mock
async def test_header_verbatim(self) -> None:
"""header_verbatim: outbound carries Last-Event-ID: 42:3 exactly."""
stream = _sse_chunk("42:4", _DONE_42_6)
route = respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
_ = [e async for e in reconnect_turn(client, "s1", "x", "42:3")]
req = route.calls[0].request
assert req.headers["Last-Event-ID"] == "42:3"
@respx.mock
async def test_body_threads_content(self) -> None:
"""body_threads_content: outbound JSON body is {'content': <content>} byte-for-byte."""
import json as _json
stream = _sse_chunk("42:4", _DONE_42_6)
route = respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
_ = [
e async for e in reconnect_turn(client, "s1", "hello mimir", "42:3")
]
body = _json.loads(route.calls[0].request.content)
assert body == {"content": "hello mimir"}
@respx.mock
async def test_buffer_expired(self) -> None:
"""buffer_expired: 412 -> ResumeBufferExpired(turn_id=42, buffered_from_seq=10)."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
412,
json={"error": "buffer_expired", "buffered_from_seq": 10, "turn_id": 42},
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(ResumeBufferExpired) as exc_info:
_ = [e async for e in reconnect_turn(client, "s1", "x", "42:3")]
assert exc_info.value.turn_id == 42
assert exc_info.value.buffered_from_seq == 10
@respx.mock
async def test_turn_finished(self) -> None:
"""turn_finished: 410 -> ResumeTurnFinished(turn_id=42)."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
410, json={"error": "turn_finished", "turn_id": 42}
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(ResumeTurnFinished) as exc_info:
_ = [e async for e in reconnect_turn(client, "s1", "x", "42:3")]
assert exc_info.value.turn_id == 42
@respx.mock
async def test_invalid_last_event_id_server(self) -> None:
"""invalid_last_event_id_server: 400 -> InvalidLastEventId."""
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(400, json={"error": "invalid_last_event_id"})
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(InvalidLastEventId):
_ = [e async for e in reconnect_turn(client, "s1", "x", "42:3")]
@respx.mock
async def test_malformed_input(self) -> None:
"""malformed_input: caller passes '42' (no seq) -> ValueError; no HTTP issued."""
route = respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(200, content=b"")
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(ValueError):
_ = [e async for e in reconnect_turn(client, "s1", "x", "42")]
assert route.call_count == 0
@respx.mock
async def test_turn_id_flip_on_first_event(self) -> None:
"""turn_id_flip_on_first_event: server's first event 99:4 -> TurnIdFlip pre-yield."""
stream = _sse_chunk("99:4", {"type": "text", "content": "wrong turn"})
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
yielded: list[Text] = []
with pytest.raises(TurnIdFlip) as exc_info:
async for e in reconnect_turn(client, "s1", "x", "42:3"):
yielded.append(e) # type: ignore[arg-type]
assert yielded == []
assert exc_info.value.established == 42
assert exc_info.value.got == 99
class TestCancelTurn:
@respx.mock
async def test_happy_cancel(self) -> None:
"""happy_cancel [happy,tracer]: 200 -> CancelResult(42, True, None, None)."""
respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
return_value=httpx.Response(
200,
json={
"turn_id": 42,
"cancelled": True,
"reason": None,
"partial_message_id": None,
},
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
result = await cancel_turn(client, "s1", 42)
assert result == CancelResult(
turn_id=42, cancelled=True, reason=None, partial_message_id=None
)
@respx.mock
async def test_persist_partial_query(self) -> None:
"""persist_partial_query [trace]: persist_partial=True -> URL has ?persist_partial=true."""
route = respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
return_value=httpx.Response(
200,
json={
"turn_id": 42,
"cancelled": True,
"reason": None,
"partial_message_id": None,
},
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
await cancel_turn(client, "s1", 42, persist_partial=True)
assert "persist_partial=true" in str(route.calls[0].request.url)
@respx.mock
async def test_default_no_persist(self) -> None:
"""default_no_persist [trace]: default call -> URL has no persist_partial param."""
route = respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
return_value=httpx.Response(
200,
json={
"turn_id": 42,
"cancelled": True,
"reason": None,
"partial_message_id": None,
},
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
await cancel_turn(client, "s1", 42)
assert "persist_partial" not in str(route.calls[0].request.url)
@respx.mock
async def test_cancel_already_completed(self) -> None:
"""cancel_already_completed [error]: 409 -> CancelAlreadyCompleted(turn_id=42)."""
respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
return_value=httpx.Response(409, json={"error": "turn_already_completed"})
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(CancelAlreadyCompleted) as exc_info:
await cancel_turn(client, "s1", 42)
assert exc_info.value.turn_id == 42
@respx.mock
async def test_cancel_turn_not_found(self) -> None:
"""cancel_turn_not_found [error]: 404 -> CancelTurnNotFound(turn_id=42)."""
respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
return_value=httpx.Response(404, json={"error": "turn_not_found"})
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(CancelTurnNotFound) as exc_info:
await cancel_turn(client, "s1", 42)
assert exc_info.value.turn_id == 42
@respx.mock
async def test_cancel_failed_truncates_body(self) -> None:
"""ERROR_ROUTING: 5xx -> CancelFailed; body truncated to <= 1024 bytes."""
from ratatoskr.sse_client import CancelFailed
big_body = b"x" * 5000
respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
return_value=httpx.Response(503, content=big_body)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(CancelFailed) as exc_info:
await cancel_turn(client, "s1", 42)
assert exc_info.value.status == 503
assert len(exc_info.value.body) <= 1024
assert exc_info.value.body == big_body[:1024]
@respx.mock
async def test_cancel_idempotent(self) -> None:
"""cancel_idempotent: first 200 -> happy; second 409 -> CancelAlreadyCompleted."""
respx.post("https://w.example/sessions/s1/turns/42/cancel").mock(
side_effect=[
httpx.Response(
200,
json={
"turn_id": 42,
"cancelled": True,
"reason": None,
"partial_message_id": None,
},
),
httpx.Response(409, json={"error": "turn_already_completed"}),
]
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
first = await cancel_turn(client, "s1", 42)
assert first.cancelled is True
with pytest.raises(CancelAlreadyCompleted):
await cancel_turn(client, "s1", 42)
# ============================================================================
# Issue #7: empty-data skip + MalformedSseData raise
# ============================================================================
def _sse_empty_chunk(sse_id: str) -> bytes:
"""SSE frame with id but empty data (server-emitted keepalive shape)."""
return f"id: {sse_id}\ndata:\n\n".encode()
def _sse_raw_chunk(sse_id: str, raw_data: str) -> bytes:
"""SSE frame with id + arbitrary raw data (for testing malformed JSON)."""
return f"id: {sse_id}\ndata: {raw_data}\n\n".encode()
def _sse_no_id_chunk(data: str) -> bytes:
"""SSE frame with NO id line + arbitrary data (v0.8.1: keepalive shape)."""
return f"data: {data}\n\n".encode()
class TestEmptyIdSkipped:
@respx.mock
async def test_empty_id_on_first_event_skipped(self) -> None:
"""empty_id_on_first_event_skipped [v0.8.1]: stream starts with an
event carrying NO `id:` line → httpx_sse exposes sse.id == ''
(no prior id to inherit). Pre-v0.8.1: MalformedSseId raw='' crashed
the turn. v0.8.1: treat same as empty-data keepalive — skip silently.
Observed 2026-05-25 on Worldtree's qwen3.6-35-a3b-heretic provider:
the first stream frame had no id line, every turn died with
`[malformed_sse_id] raw=''`.
"""
from ratatoskr.sse_client import Done as _Done
from ratatoskr.sse_client import Text as _Text
# First frame: no id line (httpx_sse → sse.id = ""). Skip it.
# Subsequent frames have ids; normal processing resumes.
stream = (
_sse_no_id_chunk('{"type":"keepalive"}') # ← skipped (sse.id == "")
+ _sse_chunk("42:1", {"type": "text", "content": "first"})
+ _sse_chunk("42:2", _DONE_42_6)
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
# 2 events — the no-id frame is invisible (no MalformedSseId crash).
assert len(events) == 2
assert isinstance(events[0], _Text)
assert events[0].content == "first"
assert isinstance(events[1], _Done)
class TestEmptyDataSkipped:
@respx.mock
async def test_empty_data_skipped(self) -> None:
"""empty_data_skipped [trace]: 4 frames in, 3 events out; skip preserves last_sse_id."""
from ratatoskr.sse_client import Done as _Done
from ratatoskr.sse_client import Text as _Text
stream = (
_sse_chunk("42:1", {"type": "text", "content": "first"})
+ _sse_empty_chunk("42:2") # ← skipped silently
+ _sse_chunk("42:3", {"type": "text", "content": "second"})
+ _sse_chunk("42:4", _DONE_42_6)
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
# Exactly 3 events: Text, Text, Done — empty-data frame at 42:2 is invisible
assert len(events) == 3
assert isinstance(events[0], _Text) and events[0].sse_id == SseId(42, 1)
assert isinstance(events[1], _Text) and events[1].sse_id == SseId(42, 3)
assert isinstance(events[2], _Done) and events[2].sse_id == SseId(42, 4)
# Per INV-003: skip MUST NOT advance through 42:2. The second Text's sse_id
# is (42, 3) — directly verifies the skip didn't bookkeep 42:2.
assert events[1].sse_id.seq == 3, "skip advanced through 42:2"
@respx.mock
async def test_empty_data_skip_preserves_last_seen_sse_id(self) -> None:
"""empty_skip_does_not_advance [trace]: drop-after-empty → last_seen is last real event."""
from ratatoskr.sse_client import SseConnectionDropped
# Stream: text(42:1), empty(42:2), then drop. Per INV-003, the skipped
# 42:2 must NOT advance internal last_sse_id. If the consumer caught a
# drop, SseConnectionDropped.last_seen_sse_id should be (42, 1) — the
# last *real* event — NOT (42, 2).
first = _sse_chunk("42:1", {"type": "text", "content": "x"})
empty = _sse_empty_chunk("42:2")
class _DropAfterEmpty(httpx.AsyncByteStream):
async def __aiter__(self): # type: ignore[no-untyped-def]
yield first
yield empty
raise httpx.RemoteProtocolError("drop after skip")
async def aclose(self) -> None:
return None
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200,
headers={"content-type": "text/event-stream"},
stream=_DropAfterEmpty(),
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectionDropped) as exc_info:
async for _ in stream_turn(client, "s1", "hi"):
pass
assert exc_info.value.last_seen_sse_id == SseId(42, 1), (
f"skip advanced last_sse_id through 42:2; got {exc_info.value.last_seen_sse_id}"
)
@respx.mock
async def test_malformed_data_raises(self) -> None:
"""malformed_data_raises [error]: text + bad-JSON → yields Text then MalformedSseData."""
from ratatoskr.sse_client import MalformedSseData
from ratatoskr.sse_client import Text as _Text
stream = (
_sse_chunk("42:1", {"type": "text", "content": "hi"})
+ _sse_raw_chunk("42:2", "not-json")
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
yielded: list = []
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(MalformedSseData) as exc_info:
async for e in stream_turn(client, "s1", "hi"):
yielded.append(e)
assert len(yielded) == 1
assert isinstance(yielded[0], _Text)
assert exc_info.value.raw == "not-json"
@respx.mock
async def test_whitespace_data_raises(self) -> None:
"""whitespace_data_raises [adv]: single-space data → MalformedSseData (NOT skipped)."""
from ratatoskr.sse_client import MalformedSseData
stream = _sse_raw_chunk("42:1", " ") # single space — non-empty, JSON-invalid
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(MalformedSseData):
async for _ in stream_turn(client, "s1", "hi"):
pass
@respx.mock
async def test_malformed_data_truncation(self) -> None:
"""malformed_data_truncation [security]: 5000-char bad data → raw truncated to 200."""
from ratatoskr.sse_client import MalformedSseData
huge_bad = "x" * 5000 # not JSON; very long
stream = _sse_raw_chunk("42:1", huge_bad)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(MalformedSseData) as exc_info:
async for _ in stream_turn(client, "s1", "hi"):
pass
assert len(exc_info.value.raw) == 200
assert exc_info.value.raw == "x" * 200
# Exception message also only contains the truncated form
assert "x" * 5000 not in str(exc_info.value)
class TestAffectUpdate:
"""Worldtree #204 / v0.28.0 — persona-state observability SSE event.
Two emissions per qualifying turn (persona-enabled agent, non-ephemeral
session): `status: "current"` at turn start with full snapshot, then
`status: "scheduled"` near turn end (lightweight, no snapshot).
See docs/conversation-api-spec.md § affect_update.
"""
@respx.mock
async def test_current_status_parsed_with_snapshot(self) -> None:
"""current_status_parsed_with_snapshot [tracer]: status=current carries
the full snapshot dict; AffectUpdate.snapshot is populated with the
nested PAD / dominant_emotion / emotions_active fields.
"""
snapshot = {
"agent_id": "mimir",
"pad": {"pleasure": 0.52, "arousal": 0.47, "dominance": 0.50},
"dominant_emotion": "curiosity",
"emotions_active": [
{"type": "curiosity", "intensity": 0.6, "decay_remaining_s": 202.7}
],
"baseline_pad": {"pleasure": 0.50, "arousal": 0.40, "dominance": 0.50},
"mood_drift": {"valence_delta": 0.02, "arousal_delta": 0.07},
"last_updated_at": "2026-05-25T22:30:18+00:00",
}
stream = _sse_chunk(
"42:1",
{
"type": "affect_update",
"status": "current",
"turn_id": 42,
"snapshot": snapshot,
},
) + _sse_chunk("42:2", _DONE_42_6)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
affect = events[0]
assert isinstance(affect, AffectUpdate)
assert affect.status == "current"
assert affect.turn_id == 42
assert affect.snapshot == snapshot
assert affect.sse_id == SseId(42, 1)
@respx.mock
async def test_scheduled_status_parsed_no_snapshot(self) -> None:
"""scheduled_status_parsed_no_snapshot [trace]: status=scheduled carries
no snapshot field; AffectUpdate.snapshot is None.
"""
stream = (
_sse_chunk("42:1", {"type": "text", "content": "x"})
+ _sse_chunk(
"42:2",
{"type": "affect_update", "status": "scheduled", "turn_id": 42},
)
+ _sse_chunk("42:3", _DONE_42_6)
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
affect = next(e for e in events if isinstance(e, AffectUpdate))
assert affect.status == "scheduled"
assert affect.turn_id == 42
assert affect.snapshot is None
assert affect.sse_id == SseId(42, 2)
class TestAwaitingLlmFirstToken:
"""Worldtree #201 / v0.29.0 — `awaiting_llm_first_token` SSE heartbeat.
Top-level event (not a worker_phase extension) fired during the
BuildingPrompt → CallingLLM gap at the configured interval (default
5s). Server-authoritative elapsed_ms is time.monotonic()-based and
monotonically increasing across the heartbeat sequence.
See docs/conversation-api-spec.md § awaiting_llm_first_token.
"""
@respx.mock
async def test_single_heartbeat_parsed(self) -> None:
"""single_heartbeat_parsed [tracer]: type=awaiting_llm_first_token →
AwaitingLlmFirstToken(turn_id, elapsed_ms_since_building_prompt).
"""
stream = _sse_chunk(
"42:1",
{
"type": "awaiting_llm_first_token",
"turn_id": 42,
"elapsed_ms_since_building_prompt": 5012.3,
},
) + _sse_chunk("42:2", _DONE_42_6)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
beat = events[0]
assert isinstance(beat, AwaitingLlmFirstToken)
assert beat.turn_id == 42
assert beat.elapsed_ms_since_building_prompt == 5012.3
assert beat.sse_id == SseId(42, 1)
@respx.mock
async def test_heartbeat_sequence_monotonic(self) -> None:
"""heartbeat_sequence_monotonic [scenario]: three consecutive heartbeats
in one turn — elapsed_ms_since_building_prompt monotonically increases,
all carry the same turn_id.
"""
stream = (
_sse_chunk(
"42:1",
{
"type": "awaiting_llm_first_token",
"turn_id": 42,
"elapsed_ms_since_building_prompt": 5000.0,
},
)
+ _sse_chunk(
"42:2",
{
"type": "awaiting_llm_first_token",
"turn_id": 42,
"elapsed_ms_since_building_prompt": 10005.4,
},
)
+ _sse_chunk(
"42:3",
{
"type": "awaiting_llm_first_token",
"turn_id": 42,
"elapsed_ms_since_building_prompt": 15011.8,
},
)
+ _sse_chunk("42:4", _DONE_42_6)
)
respx.post("https://w.example/sessions/s1/messages").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn(client, "s1", "hi")]
beats = [e for e in events if isinstance(e, AwaitingLlmFirstToken)]
assert len(beats) == 3
elapsed = [b.elapsed_ms_since_building_prompt for b in beats]
assert elapsed == sorted(elapsed) # monotonically increasing
assert all(b.turn_id == 42 for b in beats)
_URL = "https://w.example/sessions/s1/messages"
class TestStreamTurnResilient:
"""docs/contracts/issues/1.contract.md FN stream_turn_resilient (amendment 2026-06-30)."""
@respx.mock
async def test_happy_no_drop(self) -> None:
"""happy_no_drop [happy]: clean stream passes through; no reconnect issued."""
stream = _sse_chunk("42:1", {"type": "text", "content": "a"}) + _sse_chunk(
"42:2", _DONE_42_6
)
route = respx.post(_URL).mock(return_value=_stream_response(stream))
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn_resilient(client, "s1", "hi")]
assert [e.sse_id for e in events] == [SseId(42, 1), SseId(42, 2)]
assert isinstance(events[-1], Done)
assert route.call_count == 1 # POST-001: no reconnect on a clean stream
@respx.mock
async def test_resume_after_one_drop(self) -> None:
"""resume_after_one_drop [tracer]: a mid-stream drop resumes via reconnect; one stream."""
first = _drop_response([_sse_chunk("42:1", {"type": "text", "content": "a"})])
resume = _stream_response(
_sse_chunk("42:2", {"type": "text", "content": "b"})
+ _sse_chunk("42:3", _DONE_42_6)
)
route = respx.post(_URL).mock(side_effect=[first, resume])
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn_resilient(client, "s1", "hi")]
assert [e.sse_id for e in events] == [SseId(42, 1), SseId(42, 2), SseId(42, 3)]
assert isinstance(events[-1], Done)
assert route.call_count == 2
# POST-003: reconnect carries the last yielded pre-drop event's id.
assert route.calls[1].request.headers.get("Last-Event-ID") == "42:1"
# PRE/wire: first attempt does NOT carry a Last-Event-ID.
assert route.calls[0].request.headers.get("Last-Event-ID") is None
@respx.mock
async def test_resume_after_clean_eof(self) -> None:
"""resume_after_clean_eof: a clean EOF before terminal also triggers resume (INV-001)."""
first = _stream_response(_sse_chunk("42:1", {"type": "text", "content": "a"}))
resume = _stream_response(_sse_chunk("42:2", _DONE_42_6))
route = respx.post(_URL).mock(side_effect=[first, resume])
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn_resilient(client, "s1", "hi")]
assert [e.sse_id for e in events] == [SseId(42, 1), SseId(42, 2)]
assert isinstance(events[-1], Done)
assert route.calls[1].request.headers.get("Last-Event-ID") == "42:1"
@respx.mock
async def test_two_drops_then_done(self) -> None:
"""two_drops_then_done: two transient drops, third attempt completes; ids thread through."""
a1 = _drop_response([_sse_chunk("42:1", {"type": "text", "content": "a"})])
a2 = _drop_response([_sse_chunk("42:2", {"type": "text", "content": "b"})])
a3 = _stream_response(_sse_chunk("42:3", _DONE_42_6))
route = respx.post(_URL).mock(side_effect=[a1, a2, a3])
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_turn_resilient(client, "s1", "hi")]
assert [e.sse_id for e in events] == [SseId(42, 1), SseId(42, 2), SseId(42, 3)]
assert route.call_count == 3
assert route.calls[1].request.headers.get("Last-Event-ID") == "42:1"
assert route.calls[2].request.headers.get("Last-Event-ID") == "42:2"
@respx.mock
async def test_unresumable_zero_event_drop(self) -> None:
"""unresumable_zero_event_drop [adversarial]: drop before any event → propagate."""
route = respx.post(_URL).mock(side_effect=[_drop_response([])])
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectionDropped):
_ = [e async for e in stream_turn_resilient(client, "s1", "hi")]
assert route.call_count == 1 # no id to resume from → no reconnect
@respx.mock
async def test_max_reconnects_exhausted(self) -> None:
"""max_reconnects_exhausted [adversarial]: every attempt drops; budget caps reconnects."""
side = [
_drop_response([_sse_chunk(f"42:{n}", {"type": "text", "content": "x"})])
for n in (1, 2, 3)
]
route = respx.post(_URL).mock(side_effect=side)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectionDropped):
_ = [
e
async for e in stream_turn_resilient(
client, "s1", "hi", max_reconnects=2
)
]
assert route.call_count == 3 # initial + 2 reconnects, then give up
@respx.mock
async def test_zero_budget_no_resume(self) -> None:
"""zero_budget_no_resume [adversarial]: max_reconnects=0 → first drop propagates."""
first = _drop_response([_sse_chunk("42:1", {"type": "text", "content": "a"})])
route = respx.post(_URL).mock(side_effect=[first])
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectionDropped):
_ = [
e
async for e in stream_turn_resilient(
client, "s1", "hi", max_reconnects=0
)
]
assert route.call_count == 1
@respx.mock
async def test_buffer_expired_propagates(self) -> None:
"""buffer_expired_propagates [error]: a 412 on reconnect surfaces, not retried."""
first = _drop_response([_sse_chunk("42:1", {"type": "text", "content": "a"})])
resume = httpx.Response(412, json={"turn_id": 42, "buffered_from_seq": 7})
route = respx.post(_URL).mock(side_effect=[first, resume])
async with httpx.AsyncClient(base_url="https://w.example") as client:
collected: list[object] = []
with pytest.raises(ResumeBufferExpired):
async for e in stream_turn_resilient(client, "s1", "hi"):
collected.append(e)
assert [e.sse_id for e in collected] == [SseId(42, 1)] # type: ignore[attr-defined]
assert route.call_count == 2
class TestStreamAdminEvents:
"""docs/conversation-api-spec.md § Admin Event Stream — stream_admin_events (#11)."""
@respx.mock
async def test_happy_multi_event_admin_bearer(self) -> None:
"""happy [happy,tracer]: yields AdminEvent envelopes; request uses the ADMIN bearer."""
env1 = {
"id": 41, "type": "session.created", "timestamp": "2026-05-06T10:00:00.000Z",
"data": {"session_id": "s1", "agent_id": "mimir", "user_id": None},
}
env2 = {
"id": 42, "type": "turn.started", "timestamp": "2026-05-06T10:00:01.000Z",
"data": {"session_id": "s1", "turn_id": 7, "agent_id": "mimir", "user_id": None},
}
stream = _sse_chunk("41", env1) + _sse_chunk("42", env2)
route = respx.get("https://w.example/admin/events").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=stream
)
)
async with httpx.AsyncClient(
base_url="https://w.example", headers={"Authorization": "Bearer consumer"}
) as client:
events = [e async for e in stream_admin_events(client, admin_key="admin-xyz")]
assert [e.type for e in events] == ["session.created", "turn.started"]
assert isinstance(events[0], AdminEvent)
assert events[0].id == 41
assert events[1].data["turn_id"] == 7
assert route.calls[0].request.headers["Authorization"] == "Bearer admin-xyz"
@respx.mock
async def test_last_event_id_header(self) -> None:
"""last_event_id_header [trace]: empty stream → []; Last-Event-ID header sent."""
route = respx.get("https://w.example/admin/events").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=b""
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_admin_events(client, admin_key="k", last_event_id=99)]
assert events == []
assert route.calls[0].request.headers["Last-Event-ID"] == "99"
@respx.mock
async def test_403_scope_denied(self) -> None:
"""403 [error]: key lacks admin.events.read → SseConnectFailed(403)."""
respx.get("https://w.example/admin/events").mock(
return_value=httpx.Response(403, json={"error_code": "auth_scope_denied"})
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
with pytest.raises(SseConnectFailed) as exc:
_ = [e async for e in stream_admin_events(client, admin_key="k")]
assert exc.value.status == 403
@respx.mock
async def test_skips_malformed_frame(self) -> None:
"""skips_malformed [adversarial]: a bad-JSON frame is skipped, not fatal."""
good = _sse_chunk("41", {"id": 41, "type": "session.created", "data": {"session_id": "s1"}})
bad = b"id: 42\ndata: not-json\n\n"
good2 = _sse_chunk("43", {"id": 43, "type": "session.deleted", "data": {"session_id": "s1"}})
respx.get("https://w.example/admin/events").mock(
return_value=httpx.Response(
200, headers={"content-type": "text/event-stream"}, content=good + bad + good2
)
)
async with httpx.AsyncClient(base_url="https://w.example") as client:
events = [e async for e in stream_admin_events(client, admin_key="k")]
assert [e.type for e in events] == ["session.created", "session.deleted"]