81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
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"""A plain text message that merely *looks* like a JSON array of objects must
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NOT be silently re-parsed into a list on reload.
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_parse_msg_content de-serializes multimodal (image/audio) content back into a
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list of content blocks. The old heuristic accepted ANY string that started
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with "[{" and contained the substring '"type"'. A user who pasted an API
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schema / sample such as `[{"type": "object", "name": "foo"}]` therefore had
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their text message permanently corrupted into a Python list on the next
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session hydration. The fix restricts the round-trip to lists whose elements
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are all recognized content-block types (text/image_url/audio/...).
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"""
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import tempfile
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import uuid
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import pytest
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker
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from sqlalchemy.pool import NullPool
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import core.database as cdb
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from core.database import Session as DbSession
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from core.models import ChatMessage
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_TMPDB = tempfile.NamedTemporaryFile(suffix=".db", delete=False)
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_ENGINE = create_engine(
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f"sqlite:///{_TMPDB.name}",
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connect_args={"check_same_thread": False},
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poolclass=NullPool,
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)
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cdb.Base.metadata.create_all(_ENGINE)
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_TS = sessionmaker(bind=_ENGINE, autoflush=False, autocommit=False)
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@pytest.fixture
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def manager(monkeypatch):
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import core.session_manager as sm
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monkeypatch.setattr(sm, "SessionLocal", _TS)
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mgr = sm.SessionManager.__new__(sm.SessionManager)
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mgr.sessions = {}
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return mgr
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def _make_session(sid, owner="alice"):
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db = _TS()
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try:
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db.add(DbSession(id=sid, owner=owner, name="chat",
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endpoint_url="http://x", model="gpt-4o",
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archived=False, message_count=1))
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db.commit()
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finally:
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db.close()
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def test_jsonlike_user_string_not_corrupted(manager):
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sid = "sess-" + uuid.uuid4().hex[:8]
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_make_session(sid)
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text = '[{"type": "object", "name": "foo"}]'
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msgs = [ChatMessage(role="user", content=text)]
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assert manager.replace_messages(sid, msgs) is True
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manager.sessions.clear()
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reloaded = manager.get_session(sid)
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# Must come back as the ORIGINAL STRING, not silently parsed into a list.
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assert isinstance(reloaded.history[0].content, str)
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assert reloaded.history[0].content == text
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def test_real_multimodal_content_still_round_trips(manager):
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sid = "sess-" + uuid.uuid4().hex[:8]
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_make_session(sid)
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multimodal = [
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{"type": "text", "text": "what is this?"},
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{"type": "image_url", "image_url": {"url": "data:image/png;base64,AAAA"}},
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]
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msgs = [ChatMessage(role="user", content=multimodal)]
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assert manager.replace_messages(sid, msgs) is True
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manager.sessions.clear()
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reloaded = manager.get_session(sid)
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assert reloaded.history[0].content == multimodal
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