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chore: import upstream snapshot with attribution
2026-07-13 12:48:47 +08:00

460 lines
15 KiB
Python

import asyncio
from contextlib import contextmanager
from unittest.mock import Mock, patch
from chainlit.chat_context import chat_context, chat_contexts
from chainlit.context import ChainlitContext, context_var
@contextmanager
def mock_chainlit_context(session=None):
"""Context manager to set up and tear down Chainlit context."""
# Mock the event loop since we're not in an async context
mock_loop = Mock(spec=asyncio.AbstractEventLoop)
with patch("asyncio.get_running_loop", return_value=mock_loop):
mock_context = ChainlitContext(session=session)
token = context_var.set(mock_context)
try:
yield mock_context
finally:
context_var.reset(token)
class TestChatContext:
"""Test suite for ChatContext class."""
def setup_method(self):
"""Clear chat_contexts before each test."""
chat_contexts.clear()
def teardown_method(self):
"""Clear chat_contexts after each test."""
chat_contexts.clear()
def test_get_without_session(self):
"""Test get returns empty list when no session exists."""
with mock_chainlit_context(session=None):
result = chat_context.get()
assert result == []
def test_get_with_new_session(self):
"""Test get creates new chat context for new session."""
mock_session = Mock()
mock_session.id = "session_123"
with mock_chainlit_context(session=mock_session):
result = chat_context.get()
assert result == []
assert "session_123" in chat_contexts
assert chat_contexts["session_123"] == []
def test_get_returns_copy(self):
"""Test get returns a copy of the chat context."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
chat_contexts["session_123"] = [mock_message]
with mock_chainlit_context(session=mock_session):
result = chat_context.get()
assert result == [mock_message]
# Verify it's a copy, not the original
assert result is not chat_contexts["session_123"]
def test_get_with_existing_messages(self):
"""Test get returns existing messages."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg2 = Mock()
chat_contexts["session_123"] = [mock_msg1, mock_msg2]
with mock_chainlit_context(session=mock_session):
result = chat_context.get()
assert len(result) == 2
assert mock_msg1 in result
assert mock_msg2 in result
def test_add_without_session(self):
"""Test add does nothing when no session exists."""
mock_message = Mock()
with mock_chainlit_context(session=None):
result = chat_context.add(mock_message)
assert result is None
assert len(chat_contexts) == 0
def test_add_with_new_session(self):
"""Test add creates new chat context and adds message."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
with mock_chainlit_context(session=mock_session):
result = chat_context.add(mock_message)
assert result == mock_message
assert "session_123" in chat_contexts
assert mock_message in chat_contexts["session_123"]
def test_add_message_to_existing_context(self):
"""Test add appends message to existing context."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg2 = Mock()
chat_contexts["session_123"] = [mock_msg1]
with mock_chainlit_context(session=mock_session):
result = chat_context.add(mock_msg2)
assert result == mock_msg2
assert len(chat_contexts["session_123"]) == 2
assert mock_msg1 in chat_contexts["session_123"]
assert mock_msg2 in chat_contexts["session_123"]
def test_add_duplicate_message(self):
"""Test add does not add duplicate messages."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
chat_contexts["session_123"] = [mock_message]
with mock_chainlit_context(session=mock_session):
result = chat_context.add(mock_message)
assert result == mock_message
assert len(chat_contexts["session_123"]) == 1
def test_remove_without_session(self):
"""Test remove returns False when no session exists."""
mock_message = Mock()
with mock_chainlit_context(session=None):
result = chat_context.remove(mock_message)
assert result is False
def test_remove_with_nonexistent_context(self):
"""Test remove returns False when context doesn't exist."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
with mock_chainlit_context(session=mock_session):
result = chat_context.remove(mock_message)
assert result is False
def test_remove_nonexistent_message(self):
"""Test remove returns False when message not in context."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg2 = Mock()
chat_contexts["session_123"] = [mock_msg1]
with mock_chainlit_context(session=mock_session):
result = chat_context.remove(mock_msg2)
assert result is False
assert mock_msg1 in chat_contexts["session_123"]
def test_remove_existing_message(self):
"""Test remove successfully removes message."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg2 = Mock()
chat_contexts["session_123"] = [mock_msg1, mock_msg2]
with mock_chainlit_context(session=mock_session):
result = chat_context.remove(mock_msg1)
assert result is True
assert mock_msg1 not in chat_contexts["session_123"]
assert mock_msg2 in chat_contexts["session_123"]
assert len(chat_contexts["session_123"]) == 1
def test_clear_without_session(self):
"""Test clear does nothing when no session exists."""
chat_contexts["session_123"] = [Mock()]
with mock_chainlit_context(session=None):
chat_context.clear()
# Original context should remain
assert "session_123" in chat_contexts
def test_clear_with_nonexistent_context(self):
"""Test clear does nothing when context doesn't exist."""
mock_session = Mock()
mock_session.id = "session_456"
chat_contexts["session_123"] = [Mock()]
with mock_chainlit_context(session=mock_session):
chat_context.clear()
# Original context should remain
assert "session_123" in chat_contexts
def test_clear_existing_context(self):
"""Test clear empties existing context."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg2 = Mock()
chat_contexts["session_123"] = [mock_msg1, mock_msg2]
with mock_chainlit_context(session=mock_session):
chat_context.clear()
assert "session_123" in chat_contexts
assert chat_contexts["session_123"] == []
def test_to_openai_with_assistant_message(self):
"""Test to_openai converts assistant messages correctly."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
mock_message.type = "assistant_message"
mock_message.content = "Hello, how can I help?"
chat_contexts["session_123"] = [mock_message]
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert len(result) == 1
assert result[0] == {
"role": "assistant",
"content": "Hello, how can I help?",
}
def test_to_openai_with_user_message(self):
"""Test to_openai converts user messages correctly."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
mock_message.type = "user_message"
mock_message.content = "What is the weather?"
chat_contexts["session_123"] = [mock_message]
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert len(result) == 1
assert result[0] == {"role": "user", "content": "What is the weather?"}
def test_to_openai_with_system_message(self):
"""Test to_openai converts system messages correctly."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
mock_message.type = "system_message"
mock_message.content = "You are a helpful assistant."
chat_contexts["session_123"] = [mock_message]
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert len(result) == 1
assert result[0] == {
"role": "system",
"content": "You are a helpful assistant.",
}
def test_to_openai_with_unknown_message_type(self):
"""Test to_openai treats unknown types as system messages."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
mock_message.type = "unknown_type"
mock_message.content = "Unknown message"
chat_contexts["session_123"] = [mock_message]
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert len(result) == 1
assert result[0] == {"role": "system", "content": "Unknown message"}
def test_to_openai_with_multiple_messages(self):
"""Test to_openai converts multiple messages correctly."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg1.type = "user_message"
mock_msg1.content = "Hello"
mock_msg2 = Mock()
mock_msg2.type = "assistant_message"
mock_msg2.content = "Hi there!"
mock_msg3 = Mock()
mock_msg3.type = "user_message"
mock_msg3.content = "How are you?"
chat_contexts["session_123"] = [mock_msg1, mock_msg2, mock_msg3]
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert len(result) == 3
assert result[0] == {"role": "user", "content": "Hello"}
assert result[1] == {"role": "assistant", "content": "Hi there!"}
assert result[2] == {"role": "user", "content": "How are you?"}
def test_to_openai_with_empty_context(self):
"""Test to_openai returns empty list for empty context."""
mock_session = Mock()
mock_session.id = "session_123"
chat_contexts["session_123"] = []
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert result == []
def test_to_openai_without_session(self):
"""Test to_openai returns empty list when no session exists."""
with mock_chainlit_context(session=None):
result = chat_context.to_openai()
assert result == []
class TestChatContextEdgeCases:
"""Test suite for chat_context edge cases."""
def setup_method(self):
"""Clear chat_contexts before each test."""
chat_contexts.clear()
def teardown_method(self):
"""Clear chat_contexts after each test."""
chat_contexts.clear()
def test_multiple_sessions_isolated(self):
"""Test that different sessions have isolated contexts."""
mock_session1 = Mock()
mock_session1.id = "session_1"
mock_session2 = Mock()
mock_session2.id = "session_2"
mock_msg1 = Mock()
mock_msg2 = Mock()
with mock_chainlit_context(session=mock_session1):
chat_context.add(mock_msg1)
with mock_chainlit_context(session=mock_session2):
chat_context.add(mock_msg2)
assert len(chat_contexts) == 2
assert mock_msg1 in chat_contexts["session_1"]
assert mock_msg2 in chat_contexts["session_2"]
assert mock_msg1 not in chat_contexts["session_2"]
assert mock_msg2 not in chat_contexts["session_1"]
def test_add_then_remove_then_add_again(self):
"""Test adding, removing, and re-adding the same message."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
with mock_chainlit_context(session=mock_session):
# Add
chat_context.add(mock_message)
assert len(chat_contexts["session_123"]) == 1
# Remove
result = chat_context.remove(mock_message)
assert result is True
assert len(chat_contexts["session_123"]) == 0
# Add again
chat_context.add(mock_message)
assert len(chat_contexts["session_123"]) == 1
def test_clear_then_add(self):
"""Test adding messages after clearing context."""
mock_session = Mock()
mock_session.id = "session_123"
mock_msg1 = Mock()
mock_msg2 = Mock()
with mock_chainlit_context(session=mock_session):
chat_context.add(mock_msg1)
chat_context.clear()
chat_context.add(mock_msg2)
result = chat_context.get()
assert len(result) == 1
assert mock_msg2 in result
assert mock_msg1 not in result
def test_to_openai_with_mixed_message_types(self):
"""Test to_openai with various message types in sequence."""
mock_session = Mock()
mock_session.id = "session_123"
messages = [
Mock(type="system_message", content="System prompt"),
Mock(type="user_message", content="User query"),
Mock(type="assistant_message", content="Assistant response"),
Mock(type="other_type", content="Other message"),
]
chat_contexts["session_123"] = messages
with mock_chainlit_context(session=mock_session):
result = chat_context.to_openai()
assert len(result) == 4
assert result[0]["role"] == "system"
assert result[1]["role"] == "user"
assert result[2]["role"] == "assistant"
assert result[3]["role"] == "system" # Unknown types default to system
def test_chat_context_singleton(self):
"""Test that chat_context is a singleton instance."""
from chainlit.chat_context import chat_context as imported_context
assert chat_context is imported_context
def test_add_returns_message(self):
"""Test that add returns the message for chaining."""
mock_session = Mock()
mock_session.id = "session_123"
mock_message = Mock()
with mock_chainlit_context(session=mock_session):
result = chat_context.add(mock_message)
assert result is mock_message