Files
crewAI/lib/crewai/tests/mcp/test_mcp_config.py
Lorenze Jay 6f36d7003b Lorenze/feat mcp first class support (#3850)
* WIP transport support mcp

* refactor: streamline MCP tool loading and error handling

* linted

* Self type from typing with typing_extensions in MCP transport modules

* added tests for mcp setup

* added tests for mcp setup

* docs: enhance MCP overview with detailed integration examples and structured configurations

* feat: implement MCP event handling and logging in event listener and client

- Added MCP event types and handlers for connection and tool execution events.
- Enhanced MCPClient to emit events on connection status and tool execution.
- Updated ConsoleFormatter to handle MCP event logging.
- Introduced new MCP event types for better integration and monitoring.
2025-11-06 17:45:16 -08:00

137 lines
4.5 KiB
Python

from unittest.mock import AsyncMock, patch
import pytest
from crewai.agent.core import Agent
from crewai.mcp.config import MCPServerHTTP, MCPServerSSE, MCPServerStdio
from crewai.tools.base_tool import BaseTool
@pytest.fixture
def mock_tool_definitions():
"""Create mock MCP tool definitions (as returned by list_tools)."""
return [
{
"name": "test_tool_1",
"description": "Test tool 1 description",
"inputSchema": {
"type": "object",
"properties": {
"query": {"type": "string", "description": "Search query"}
},
"required": ["query"]
}
},
{
"name": "test_tool_2",
"description": "Test tool 2 description",
"inputSchema": {}
}
]
def test_agent_with_stdio_mcp_config(mock_tool_definitions):
"""Test agent setup with MCPServerStdio configuration."""
stdio_config = MCPServerStdio(
command="python",
args=["server.py"],
env={"API_KEY": "test_key"},
)
agent = Agent(
role="Test Agent",
goal="Test goal",
backstory="Test backstory",
mcps=[stdio_config],
)
with patch("crewai.agent.core.MCPClient") as mock_client_class:
mock_client = AsyncMock()
mock_client.list_tools = AsyncMock(return_value=mock_tool_definitions)
mock_client.connected = False # Will trigger connect
mock_client.connect = AsyncMock()
mock_client.disconnect = AsyncMock()
mock_client_class.return_value = mock_client
tools = agent.get_mcp_tools([stdio_config])
assert len(tools) == 2
assert all(isinstance(tool, BaseTool) for tool in tools)
mock_client_class.assert_called_once()
call_args = mock_client_class.call_args
transport = call_args.kwargs["transport"]
assert transport.command == "python"
assert transport.args == ["server.py"]
assert transport.env == {"API_KEY": "test_key"}
def test_agent_with_http_mcp_config(mock_tool_definitions):
"""Test agent setup with MCPServerHTTP configuration."""
http_config = MCPServerHTTP(
url="https://api.example.com/mcp",
headers={"Authorization": "Bearer test_token"},
streamable=True,
)
agent = Agent(
role="Test Agent",
goal="Test goal",
backstory="Test backstory",
mcps=[http_config],
)
with patch("crewai.agent.core.MCPClient") as mock_client_class:
mock_client = AsyncMock()
mock_client.list_tools = AsyncMock(return_value=mock_tool_definitions)
mock_client.connected = False # Will trigger connect
mock_client.connect = AsyncMock()
mock_client.disconnect = AsyncMock()
mock_client_class.return_value = mock_client
tools = agent.get_mcp_tools([http_config])
assert len(tools) == 2
assert all(isinstance(tool, BaseTool) for tool in tools)
mock_client_class.assert_called_once()
call_args = mock_client_class.call_args
transport = call_args.kwargs["transport"]
assert transport.url == "https://api.example.com/mcp"
assert transport.headers == {"Authorization": "Bearer test_token"}
assert transport.streamable is True
def test_agent_with_sse_mcp_config(mock_tool_definitions):
"""Test agent setup with MCPServerSSE configuration."""
sse_config = MCPServerSSE(
url="https://api.example.com/mcp/sse",
headers={"Authorization": "Bearer test_token"},
)
agent = Agent(
role="Test Agent",
goal="Test goal",
backstory="Test backstory",
mcps=[sse_config],
)
with patch("crewai.agent.core.MCPClient") as mock_client_class:
mock_client = AsyncMock()
mock_client.list_tools = AsyncMock(return_value=mock_tool_definitions)
mock_client.connected = False
mock_client.connect = AsyncMock()
mock_client.disconnect = AsyncMock()
mock_client_class.return_value = mock_client
tools = agent.get_mcp_tools([sse_config])
assert len(tools) == 2
assert all(isinstance(tool, BaseTool) for tool in tools)
mock_client_class.assert_called_once()
call_args = mock_client_class.call_args
transport = call_args.kwargs["transport"]
assert transport.url == "https://api.example.com/mcp/sse"
assert transport.headers == {"Authorization": "Bearer test_token"}