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https://github.com/NousResearch/hermes-agent.git
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9c28600e77
Replace OS-scheduler-dependent elapsed-time ceilings with deterministic concurrency proofs in three tests: - test_context_refs_concurrent: asyncio.Barrier rendezvous — all 3 URL fetches must be in flight simultaneously before any returns. - test_memory_boundary_commit: positive non-blocking witness — the provider call list must still be empty when the async commit returns. - test_mem0_v3 slow-prefetch: threading.Event park/release — prefetch must return while the backend search is still parked. The tests/tools/test_mcp_tool.py hunk from the original PR is dropped: main no longer carries the 'elapsed < 2.5' assertion it targeted (superseded by a delay-relative bound). Salvaged from #71913.
116 lines
4.3 KiB
Python
116 lines
4.3 KiB
Python
"""Tests for MemoryManager.commit_session_boundary_async.
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The /new session boundary must deliver on_session_end (old-session
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extraction) strictly BEFORE on_session_switch (provider rebinding to the
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new session), without blocking the caller. Both hooks run as one task on
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the manager's single serialized background worker.
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"""
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from __future__ import annotations
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import threading
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import time
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from typing import Any, Dict, List
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from agent.memory_manager import MemoryManager
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from agent.memory_provider import MemoryProvider
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class _RecordingProvider(MemoryProvider):
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"""Provider that records hook invocations with thread identity."""
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def __init__(self, end_delay: float = 0.0):
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self.calls: List[tuple] = []
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self._end_delay = end_delay
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self._caller_thread_ids: List[int] = []
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# Required ABC surface (minimal no-ops)
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@property
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def name(self) -> str:
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return "recorder"
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def is_available(self) -> bool:
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return True
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def get_tool_schemas(self) -> List[Dict[str, Any]]:
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return []
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def initialize(self, agent: Any = None, **kwargs) -> bool: # type: ignore[override]
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return True
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def build_system_prompt(self) -> str: # type: ignore[override]
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return ""
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def sync_turn(self, user_content: str, assistant_content: str, **kwargs) -> None: # type: ignore[override]
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self.calls.append(("sync_turn", kwargs.get("session_id", "")))
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def on_session_end(self, messages: List[Dict[str, Any]]) -> None:
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if self._end_delay:
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time.sleep(self._end_delay)
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self._caller_thread_ids.append(threading.get_ident())
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self.calls.append(("end", list(messages)))
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def on_session_switch(self, new_session_id: str, **kwargs) -> None:
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self.calls.append(("switch", new_session_id, kwargs.get("reset")))
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def _make_manager(provider: _RecordingProvider) -> MemoryManager:
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mm = MemoryManager()
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mm._providers.append(provider) # bypass add_provider validation for the stub
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return mm
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def test_boundary_commit_delivers_end_strictly_before_switch():
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"""Even with a slow (LLM-like) extraction, switch waits for end."""
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provider = _RecordingProvider(end_delay=0.15)
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mm = _make_manager(provider)
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msgs = [{"role": "user", "content": "old turn"}]
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mm.commit_session_boundary_async(
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msgs, new_session_id="new-sid", parent_session_id="old-sid"
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)
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# DETERMINISTIC non-blocking witness — replaces `assert elapsed < 0.1`.
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#
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# The old form timed `commit_session_boundary_async` and required it under
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# 100ms, which makes the scheduler part of the assertion: thread startup
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# alone can exceed that on a loaded box, flipping the inequality with
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# nothing wrong in the code under test.
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#
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# The real contract is that the caller returns WITHOUT waiting for the slow
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# extraction. Assert it directly: the background `on_session_end` sleeps
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# 0.15s before recording anything, so if the caller had blocked on it, the
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# provider would already have recorded the "end" call by the time we get
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# here. An empty call list is a positive witness that /new was not gated.
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assert provider.calls == [], (
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"commit_session_boundary_async blocked on the slow extraction: "
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f"provider already recorded {provider.calls} before the caller returned"
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)
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assert mm.flush_pending(timeout=30)
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kinds = [c[0] for c in provider.calls]
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assert kinds == ["end", "switch"], f"ordering violated: {provider.calls}"
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assert provider.calls[0] == ("end", msgs)
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assert provider.calls[1] == ("switch", "new-sid", True)
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# And it genuinely ran off the caller's thread.
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assert provider._caller_thread_ids[0] != threading.get_ident()
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def test_boundary_commit_switch_still_fires_when_end_raises():
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"""A failing provider extraction must not strand providers on the old sid."""
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class _ExplodingEndProvider(_RecordingProvider):
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def on_session_end(self, messages): # type: ignore[override]
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raise RuntimeError("provider extraction blew up")
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provider = _ExplodingEndProvider()
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mm = _make_manager(provider)
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mm.commit_session_boundary_async([{"role": "user", "content": "x"}], new_session_id="new-sid")
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assert mm.flush_pending(timeout=5)
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assert ("switch", "new-sid", True) in provider.calls
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