80 lines
3.2 KiB
Python
80 lines
3.2 KiB
Python
import pytest
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from fastapi.testclient import TestClient
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from unittest.mock import MagicMock, patch
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from ea_chatbot.api.main import app
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from ea_chatbot.history.models import User, Conversation, Message
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from langchain_core.messages import HumanMessage, AIMessage
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@pytest.fixture
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def client():
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return TestClient(app)
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@pytest.fixture
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def mock_user():
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return User(id="user-123", username="test@test.com")
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def test_chat_stream_loads_history(client, mock_user):
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"""
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Test that the /chat/stream endpoint loads history from the DB
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and passes it to stream_agent_events.
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"""
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# 1. Setup mocks
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from ea_chatbot.api.dependencies import get_current_user
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app.dependency_overrides[get_current_user] = lambda: mock_user
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try:
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with patch("ea_chatbot.api.routers.agent.history_manager") as mock_hm, \
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patch("ea_chatbot.api.routers.agent.stream_agent_events") as mock_stream:
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# Mock conversation exists and belongs to user
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mock_conv = Conversation(id="conv-123", user_id=mock_user.id, summary="Old summary")
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mock_session = MagicMock()
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mock_session.get.return_value = mock_conv
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mock_hm.get_session.return_value.__enter__.return_value = mock_session
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# Mock history window returns some messages
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mock_db_messages = [
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Message(role="user", content="Question 1"),
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Message(role="assistant", content="Answer 1")
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]
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mock_hm.get_messages_by_window.return_value = mock_db_messages
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# Mock stream_agent_events to return an empty generator
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async def empty_gen(*args, **kwargs):
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yield 'data: {"type": "done"}\n\n'
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mock_stream.side_effect = empty_gen
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# 2. Execute request
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response = client.post(
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"/api/v1/chat/stream",
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json={"message": "New question", "thread_id": "conv-123"}
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)
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# 3. Assertions
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assert response.status_code == 200
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# Verify history_manager was called to get history
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mock_hm.get_messages_by_window.assert_called_once_with("conv-123", window_size=10)
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# Verify stream_agent_events was called with loaded history and summary
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args, kwargs = mock_stream.call_args
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# args: message, thread_id, user_id, summary, messages
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assert args[0] == "New question"
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assert args[1] == "conv-123"
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assert args[2] == mock_user.id
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assert args[3] == "Old summary"
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passed_messages = args[4]
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assert len(passed_messages) == 2
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assert isinstance(passed_messages[0], HumanMessage)
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assert passed_messages[0].content == "Question 1"
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assert isinstance(passed_messages[1], AIMessage)
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assert passed_messages[1].content == "Answer 1"
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# Verify current message was saved AFTER loading history (based on code logic)
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mock_hm.add_message.assert_called_with("conv-123", "user", "New question")
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finally:
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app.dependency_overrides.clear()
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