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103 lines
3.5 KiB
Python
103 lines
3.5 KiB
Python
"""#5 regression: _session_has_compression_in_flight must offload both blocking sources to thread pool."""
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import inspect
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import threading
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from unittest.mock import MagicMock
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import pytest
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def _make_runner(holder_value=None, record_thread=False, thread_sink=None):
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from gateway.run import GatewayRunner
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runner = GatewayRunner.__new__(GatewayRunner)
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store = MagicMock()
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store._lock = threading.Lock()
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store._loaded = True
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store._entries = {"k": MagicMock(session_id="sess-123")}
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store._ensure_loaded_locked = lambda: None
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runner.session_store = store
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raw_db = MagicMock()
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if record_thread and thread_sink is not None:
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def _holder(sid):
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thread_sink["thread"] = threading.get_ident()
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return holder_value
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raw_db.get_compression_lock_holder = _holder
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else:
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raw_db.get_compression_lock_holder = MagicMock(return_value=holder_value)
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session_db = MagicMock()
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session_db._db = raw_db
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runner._session_db = session_db
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return runner
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def test_method_is_coroutine():
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from gateway.run import GatewayRunner
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assert inspect.iscoroutinefunction(
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GatewayRunner._session_has_compression_in_flight
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), "#5: method must be async, blocking calls offloaded"
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@pytest.mark.asyncio
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async def test_returns_true_when_lock_held():
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runner = _make_runner(holder_value="agent-1")
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assert await runner._session_has_compression_in_flight("k") is True
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@pytest.mark.asyncio
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async def test_returns_false_when_no_lock():
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runner = _make_runner(holder_value=None)
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assert await runner._session_has_compression_in_flight("k") is False
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@pytest.mark.asyncio
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async def test_returns_false_when_no_session_store():
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from gateway.run import GatewayRunner
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runner = GatewayRunner.__new__(GatewayRunner)
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runner.session_store = None
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runner._session_db = MagicMock()
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assert await runner._session_has_compression_in_flight("k") is False
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@pytest.mark.asyncio
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async def test_structural_lock_absence_still_fails_open():
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runner = _make_runner(holder_value=None)
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runner._session_db._db.get_compression_lock_holder = MagicMock(
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side_effect=AttributeError("old SessionDB has no lock helper")
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)
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assert await runner._session_has_compression_in_flight("k") is False
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@pytest.mark.asyncio
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async def test_db_lock_probe_error_fails_closed():
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runner = _make_runner(holder_value=None)
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runner._session_db._db.get_compression_lock_holder = MagicMock(
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side_effect=RuntimeError("sqlite temporarily unavailable")
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)
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assert await runner._session_has_compression_in_flight("k") is True
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@pytest.mark.asyncio
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async def test_store_lookup_error_fails_closed():
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runner = _make_runner(holder_value=None)
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runner.session_store._ensure_loaded_locked = MagicMock(
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side_effect=RuntimeError("routing index temporarily unavailable")
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)
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assert await runner._session_has_compression_in_flight("k") is True
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@pytest.mark.asyncio
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async def test_db_call_runs_off_event_loop():
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"""Regression core: get_compression_lock_holder MUST execute in non-event-loop thread."""
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sink = {}
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runner = _make_runner(holder_value="agent-1", record_thread=True, thread_sink=sink)
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loop_thread = threading.get_ident()
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await runner._session_has_compression_in_flight("k")
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assert "thread" in sink, "underlying db.get_compression_lock_holder was not called"
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assert sink["thread"] != loop_thread, (
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"DB call still on event loop thread — #5 NOT fixed (to_thread not applied)"
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)
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