Files
hermes-agent/tests/gateway/test_slack_native_streaming.py
kshitijk4poor fdec926ef5 fix(slack): replace a native stream in place only for a restyled final, share one commit path
- A mid-turn notify reply (/status, /approve, clarify answer) shares the
  stream's thread key; it no longer seals and overwrites the half-streamed
  answer. In-place replacement now requires the final to match the stream
  after normalizing mrkdwn markers and whitespace; anything else posts fresh
  and leaves the stream open.
- One _commit_stream helper for both seal-then-commit paths, so the rewrite
  path also falls back to chat.update when stopStream fails.
- A stream reopened after a server-side seal is seeded with only the text
  past the sealed message (tracked as 'base'), not the whole segment.
- Streams older than 15 min are sealed and dropped on the next start.
- _stream_key reuses _workspace_thread_key/scope_id_for_chat; the stream
  dict no longer duplicates chat/team ids.
2026-09-25 14:28:14 +05:30

375 lines
17 KiB
Python

"""Tests: SlackAdapter native streaming (chat.startStream/appendStream/stopStream).
Behaviour contract:
* supports_draft_streaming: True when connected with default unfurl behavior;
False after a cached feature-gate failure, when disconnected, or when an
explicit unfurl control requires the chat.postMessage fallback.
* send_draft first frame: chat_startStream with thread_ts + initial text;
returns the stream ts as message_id.
* send_draft subsequent frames: chat_appendStream with only the delta;
trailing cursor glyph stripped before delta computation.
* identical frame: no API call, success.
* prefix mismatch: stream sealed, frame fails (consumer falls back to edits).
* send() finalization: active stream sealed via chat_stopStream with the
remaining delta instead of chat_postMessage (no duplicate message).
* send() with unrelated content: stream left open, normal post proceeds.
* startStream feature-gate error: caches _native_stream_unsupported so
future supports_draft_streaming() returns False.
* disconnect(): dangling streams sealed.
Duplicate-reply invariant:
* A successfully streamed answer is NEVER posted a second time as a fresh
message — not when the agent's final differs from the streamed frames
only by surrounding whitespace (``final_response.strip()`` /
``rstrip() + footer``), and not when chat.stopStream fails after the
whole answer is already visible (the final is then committed in place
via chat.update).
* A genuinely uncommittable stream (stopStream AND chat.update fail) still
falls back to a fresh post so the answer is not lost.
* Interim sends (``_interim_send`` / ``expect_edits``) never seal a stream.
* Streams are keyed per (team, channel, thread): two threads in one channel
never seal each other's stream.
"""
import asyncio
from unittest.mock import AsyncMock, MagicMock
import pytest
from gateway.config import PlatformConfig
from gateway.stream_consumer import GatewayStreamConsumer, StreamConsumerConfig
from plugins.platforms.slack.adapter import SlackAdapter
class _StreamExpiredError(Exception):
"""slack_sdk.SlackApiError's shape (``exc.response["error"]``) without importing the SDK,
which CI stubs as a bare module. The adapter only reads the response mapping."""
def __init__(self, message, response):
super().__init__(message)
self.response = response
def _make_adapter(extra=None):
config = PlatformConfig(enabled=True, token="xoxb-fake", extra=extra or {})
a = SlackAdapter(config)
a._app = MagicMock()
client = AsyncMock()
client.chat_postMessage = AsyncMock(return_value={"ts": "999.111"})
client.chat_update = AsyncMock(return_value={"ts": "999.111"})
client.chat_startStream = AsyncMock(return_value={"ok": True, "ts": "123.456"})
client.chat_appendStream = AsyncMock(return_value={"ok": True})
client.chat_stopStream = AsyncMock(return_value={"ok": True})
a._get_client = MagicMock(return_value=client)
a.stop_typing = AsyncMock()
a._running = True
return a, client
def _open_streams(adapter, chat_id="D1"):
"""Stream entries currently open for ``chat_id`` (any thread/team)."""
return [s for k, s in adapter._active_streams.items() if k[1] == chat_id]
META = {"thread_id": "111.000", "user_id": "U123"}
META_B = {"thread_id": "222.000", "user_id": "U123"}
class TestSupportsDraftStreaming:
def test_supported_when_connected(self):
adapter, _ = _make_adapter()
assert adapter.supports_draft_streaming(chat_type="dm") is True
@pytest.mark.parametrize(
("unfurl_key", "configured_value"),
[
("unfurl_links", False),
("unfurl_links", True),
("unfurl_media", False),
("unfurl_media", True),
],
)
def test_explicit_unfurl_control_disables_native_streaming(
self, unfurl_key, configured_value
):
adapter, _ = _make_adapter({unfurl_key: configured_value})
assert adapter.supports_draft_streaming(chat_type="dm") is False
def test_unsupported_when_disconnected(self):
adapter, _ = _make_adapter()
adapter._app = None
assert adapter.supports_draft_streaming() is False
class TestSendDraft:
@pytest.mark.asyncio
async def test_first_frame_starts_stream(self):
adapter, client = _make_adapter()
result = await adapter.send_draft("D1", 7, "Hello wo", metadata=META)
assert result.success
assert result.message_id == "123.456"
kwargs = client.chat_startStream.await_args.kwargs
assert kwargs["channel"] == "D1"
assert kwargs["thread_ts"] == "111.000"
assert kwargs["markdown_text"] == "Hello wo"
assert kwargs["recipient_user_id"] == "U123"
client.chat_appendStream.assert_not_awaited()
@pytest.mark.asyncio
async def test_subsequent_frame_appends_delta_only(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello wo", metadata=META)
result = await adapter.send_draft("D1", 7, "Hello world!", metadata=META)
assert result.success
kwargs = client.chat_appendStream.await_args.kwargs
assert kwargs["markdown_text"] == "rld!"
assert kwargs["ts"] == "123.456"
@pytest.mark.asyncio
async def test_cursor_glyph_stripped(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello \u2589", metadata=META)
assert client.chat_startStream.await_args.kwargs["markdown_text"] == "Hello"
await adapter.send_draft("D1", 7, "Hello world \u2589", metadata=META)
assert client.chat_appendStream.await_args.kwargs["markdown_text"] == " world"
@pytest.mark.asyncio
async def test_identical_frame_is_noop(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello", metadata=META)
result = await adapter.send_draft("D1", 7, "Hello \u2589", metadata=META)
assert result.success
client.chat_appendStream.assert_not_awaited()
@pytest.mark.asyncio
async def test_prefix_mismatch_seals_and_fails(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello", metadata=META)
result = await adapter.send_draft("D1", 7, "Rewritten text", metadata=META)
assert not result.success
client.chat_stopStream.assert_awaited()
assert not _open_streams(adapter)
@pytest.mark.asyncio
async def test_no_thread_ts_fails_cleanly(self):
adapter, client = _make_adapter()
result = await adapter.send_draft("D1", 7, "Hello", metadata={})
assert not result.success
client.chat_startStream.assert_not_awaited()
@pytest.mark.asyncio
async def test_new_draft_id_seals_prior_stream(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Segment one", metadata=META)
client.chat_startStream.return_value = {"ok": True, "ts": "124.000"}
result = await adapter.send_draft("D1", 8, "Segment two", metadata=META)
assert result.success
client.chat_stopStream.assert_awaited() # sealed segment one
(stream,) = _open_streams(adapter)
assert stream["ts"] == "124.000"
@pytest.mark.asyncio
async def test_expired_stream_reopens_seeded_with_only_the_unsent_tail(self):
"""Slack seals a native draft stream server-side after a few minutes of a
long turn — the same seal the native task-card stream hits (see
_slack_error_is's other caller). The next chat.appendStream fails with
message_not_in_streaming_state; the lane must not permanently disable
draft streaming for the run (#_send_draft_frame's "any failure
permanently disables drafts"): drop the dead ts and start a fresh stream
in the same thread seeded with ONLY the text past the sealed message (the
prefix is already visible there), while later deltas still resume correctly."""
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello wo", metadata=META)
client.chat_appendStream = AsyncMock(
side_effect=_StreamExpiredError("expired", {"ok": False, "error": "message_not_in_streaming_state"})
)
client.chat_startStream = AsyncMock(return_value={"ok": True, "ts": "124.000"})
result = await adapter.send_draft("D1", 7, "Hello world!", metadata=META)
assert result.success
assert result.message_id == "124.000"
kwargs = client.chat_startStream.await_args.kwargs
assert kwargs["markdown_text"] == "rld!" # sealed message already shows "Hello wo"
(reopened,) = _open_streams(adapter) # same per-thread key, dead ts replaced
assert reopened["ts"] == "124.000"
assert reopened["sent"] == "Hello world!" # full segment: deltas diff against it
assert reopened["base"] == len("Hello wo")
assert kwargs["thread_ts"] == META["thread_id"]
assert adapter._native_stream_unsupported is False # not the feature-gate path
# A later frame resumes as a normal delta against the reopened stream.
client.chat_appendStream = AsyncMock(return_value={"ok": True})
result2 = await adapter.send_draft("D1", 7, "Hello world! More.", metadata=META)
assert result2.success
assert client.chat_appendStream.await_args.kwargs["markdown_text"] == " More."
class TestFeatureGateFallback:
@pytest.mark.asyncio
async def test_not_allowed_caches_unsupported(self):
adapter, client = _make_adapter()
client.chat_startStream = AsyncMock(
side_effect=Exception("The request to the Slack API failed. (not_allowed)")
)
result = await adapter.send_draft("D1", 7, "Hello", metadata=META)
assert not result.success
assert adapter._native_stream_unsupported is True
assert adapter.supports_draft_streaming() is False
class TestSendFinalization:
@pytest.mark.asyncio
async def test_final_send_seals_stream_no_duplicate_post(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello wo", metadata=META)
result = await adapter.send("D1", "Hello world, done.", metadata=META)
assert result.success
assert result.message_id == "123.456"
kwargs = client.chat_stopStream.await_args.kwargs
assert kwargs["markdown_text"] == "rld, done."
client.chat_postMessage.assert_not_awaited()
assert not _open_streams(adapter)
@pytest.mark.asyncio
async def test_final_send_equal_content_seals_without_delta(self):
"""A: streamed == final → one Slack message only."""
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello world", metadata=META)
result = await adapter.send("D1", "Hello world", metadata=META)
assert result.success
kwargs = client.chat_stopStream.await_args.kwargs
assert "markdown_text" not in kwargs
client.chat_postMessage.assert_not_awaited()
client.chat_update.assert_not_awaited()
@pytest.mark.asyncio
async def test_whitespace_only_difference_does_not_duplicate(self):
"""B: the agent strips final_response; the streamed frames were not."""
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "\n\nHello world\n", metadata=META)
result = await adapter.send("D1", "Hello world", metadata=META)
assert result.success
assert result.message_id == "123.456"
assert client.chat_stopStream.await_count == 1
assert "markdown_text" not in client.chat_stopStream.await_args.kwargs
client.chat_postMessage.assert_not_awaited()
assert not _open_streams(adapter)
@pytest.mark.asyncio
async def test_unrelated_send_passes_through(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Streaming text here", metadata=META)
result = await adapter.send("D1", "Unrelated notice", metadata=META)
assert result.success
client.chat_postMessage.assert_awaited()
# Stream stays open for its own finalization.
assert _open_streams(adapter)
@pytest.mark.asyncio
async def test_mid_turn_notify_reply_leaves_stream_open_and_posts_fresh(self):
"""/status, /approve and clarify answers are notify sends in the SAME thread; they
must not overwrite the half-streamed answer in place."""
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Partial answer being streamed", metadata=META)
result = await adapter.send("D1", "Status: running, 3 tools", metadata={**META, "notify": True})
assert result.message_id == "999.111"
client.chat_postMessage.assert_awaited_once()
client.chat_stopStream.assert_not_awaited()
client.chat_update.assert_not_awaited()
(stream,) = _open_streams(adapter)
assert stream["sent"] == "Partial answer being streamed"
@pytest.mark.asyncio
async def test_stop_and_update_both_fail_falls_back_to_fresh_post(self):
"""C2/D: an uncommittable stream still delivers the answer (loss-safe)."""
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Hello", metadata=META)
client.chat_stopStream = AsyncMock(side_effect=Exception("boom"))
client.chat_update = AsyncMock(side_effect=Exception("update boom"))
result = await adapter.send("D1", "Hello world", metadata=META)
assert result.success
client.chat_postMessage.assert_awaited_once()
assert client.chat_postMessage.await_args.kwargs["text"] == "Hello world"
# A stop that carries a tail is never retried: ``markdown_text`` APPENDS.
assert client.chat_stopStream.await_count == 1
assert client.chat_update.await_count == 1
assert not _open_streams(adapter)
@pytest.mark.asyncio
async def test_two_threads_finalize_their_own_streams(self):
adapter, client = _make_adapter()
await adapter.send_draft("C1", 7, "Thread A answer", metadata=META)
client.chat_startStream.return_value = {"ok": True, "ts": "456.000"}
await adapter.send_draft("C1", 8, "Thread B answer", metadata=META_B)
rb = await adapter.send("C1", "Thread B answer", metadata=META_B)
assert rb.message_id == "456.000"
assert client.chat_stopStream.await_args.kwargs["ts"] == "456.000"
assert [s["ts"] for s in _open_streams(adapter, "C1")] == ["123.456"]
ra = await adapter.send("C1", "Thread A answer", metadata=META)
assert ra.message_id == "123.456"
assert client.chat_stopStream.await_count == 2
client.chat_postMessage.assert_not_awaited()
assert not _open_streams(adapter, "C1")
@pytest.mark.asyncio
async def test_rewritten_turn_final_replaces_stream_in_place(self):
"""A mrkdwn-rewritten turn-final (notify=True) replaces the sealed stream; no 2nd post."""
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "*Done:* all good", metadata=META)
result = await adapter.send("D1", "_Done:_ all good", metadata=dict(META, notify=True))
assert result.success
client.chat_stopStream.assert_awaited_once()
client.chat_update.assert_awaited()
assert client.chat_update.await_args.kwargs["ts"] == result.message_id
client.chat_postMessage.assert_not_awaited()
assert not _open_streams(adapter)
@pytest.mark.asyncio
async def test_rewritten_turn_final_posts_when_update_fails(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "*Draft:* answer that got restyled", metadata=META)
client.chat_update = AsyncMock(side_effect=Exception("update failed"))
result = await adapter.send("D1", "_Draft:_ answer that got restyled", metadata=dict(META, notify=True))
assert result.success
client.chat_postMessage.assert_awaited_once()
assert not _open_streams(adapter)
RICH_MD = "# Title\n\nbody text with **bold**\n\n| a | b |\n|---|---|\n| 1 | 2 |"
class TestRichBlocksAfterSeal:
"""G: with ``rich_blocks`` the sealed stream gets its layout via chat.update, once."""
@pytest.mark.asyncio
async def test_rich_blocks_applied_after_seal(self):
adapter, client = _make_adapter({"rich_blocks": True})
rich = "# Title\n\nbody text"
await adapter.send_draft("D1", 7, rich[:5], metadata=META)
result = await adapter.send("D1", rich, metadata=META)
assert result.success
client.chat_update.assert_awaited()
assert client.chat_update.await_args.kwargs["blocks"]
class TestDisconnectCleanup:
@pytest.mark.asyncio
async def test_disconnect_seals_dangling_streams(self):
adapter, client = _make_adapter()
await adapter.send_draft("D1", 7, "Dangling", metadata=META)
adapter._stop_socket_mode_handler = AsyncMock()
adapter._release_platform_lock = MagicMock()
await adapter.disconnect()
client.chat_stopStream.assert_awaited()
assert client.chat_stopStream.await_args.kwargs["channel"] == "D1"
assert not adapter._active_streams