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cb34145 9cad16d cb34145 9cad16d cb34145 9cad16d cb34145 9cad16d cb34145 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | import asyncio
import logging
from unittest.mock import AsyncMock, Mock, patch
import anyio
import pytest
from fastmcp.server.server import FastMCP
class CustomLogFormatterForTest(logging.Formatter):
def format(self, record: logging.LogRecord) -> str:
return f"TEST_FORMAT::{record.levelname}::{record.name}::{record.getMessage()}"
@pytest.fixture
def mcp_server() -> FastMCP:
return FastMCP(name="TestLogServer")
@patch("fastmcp.server.server.uvicorn.Server")
@patch("fastmcp.server.server.uvicorn.Config")
async def test_uvicorn_logging_default_level(
mock_uvicorn_config_constructor: Mock,
mock_uvicorn_server_constructor: Mock,
mcp_server: FastMCP,
):
"""Tests that FastMCP passes log_level to uvicorn.Config if no log_config is given."""
mock_server_instance = AsyncMock()
mock_uvicorn_server_constructor.return_value = mock_server_instance
serve_finished_event = anyio.Event()
mock_server_instance.serve.side_effect = serve_finished_event.wait
test_log_level = "warning"
server_task = asyncio.create_task(
mcp_server.run_http_async(log_level=test_log_level, port=8003)
)
await asyncio.sleep(0.01)
mock_uvicorn_config_constructor.assert_called_once()
_, kwargs_config = mock_uvicorn_config_constructor.call_args
assert kwargs_config.get("log_level") == test_log_level.lower()
assert "log_config" not in kwargs_config
mock_uvicorn_server_constructor.assert_called_once_with(
mock_uvicorn_config_constructor.return_value
)
mock_server_instance.serve.assert_awaited_once()
server_task.cancel()
with pytest.raises(asyncio.CancelledError):
await server_task
@patch("fastmcp.server.server.uvicorn.Server")
@patch("fastmcp.server.server.uvicorn.Config")
async def test_uvicorn_logging_with_custom_log_config(
mock_uvicorn_config_constructor: Mock,
mock_uvicorn_server_constructor: Mock,
mcp_server: FastMCP,
):
"""Tests that FastMCP passes log_config to uvicorn.Config and not log_level."""
mock_server_instance = AsyncMock()
mock_uvicorn_server_constructor.return_value = mock_server_instance
serve_finished_event = anyio.Event()
mock_server_instance.serve.side_effect = serve_finished_event.wait
sample_log_config = {
"version": 1,
"disable_existing_loggers": False,
"formatters": {
"test_formatter": {
"()": "tests.server.test_logging.CustomLogFormatterForTest"
}
},
"handlers": {
"test_handler": {
"formatter": "test_formatter",
"class": "logging.StreamHandler",
"stream": "ext://sys.stdout",
}
},
"loggers": {
"uvicorn.error": {
"handlers": ["test_handler"],
"level": "INFO",
"propagate": False,
}
},
}
server_task = asyncio.create_task(
mcp_server.run_http_async(
uvicorn_config={"log_config": sample_log_config}, port=8004
)
)
await asyncio.sleep(0.01)
mock_uvicorn_config_constructor.assert_called_once()
_, kwargs_config = mock_uvicorn_config_constructor.call_args
assert kwargs_config.get("log_config") == sample_log_config
assert "log_level" not in kwargs_config
mock_uvicorn_server_constructor.assert_called_once_with(
mock_uvicorn_config_constructor.return_value
)
mock_server_instance.serve.assert_awaited_once()
server_task.cancel()
with pytest.raises(asyncio.CancelledError):
await server_task
@patch("fastmcp.server.server.uvicorn.Server")
@patch("fastmcp.server.server.uvicorn.Config")
async def test_uvicorn_logging_custom_log_config_overrides_log_level_param(
mock_uvicorn_config_constructor: Mock,
mock_uvicorn_server_constructor: Mock,
mcp_server: FastMCP,
):
"""Tests log_config precedence if log_level is also passed to run_http_async."""
mock_server_instance = AsyncMock()
mock_uvicorn_server_constructor.return_value = mock_server_instance
serve_finished_event = anyio.Event()
mock_server_instance.serve.side_effect = serve_finished_event.wait
sample_log_config = {
"version": 1,
"disable_existing_loggers": False,
"formatters": {
"test_formatter": {
"()": "tests.server.test_logging.CustomLogFormatterForTest"
}
},
"handlers": {
"test_handler": {
"formatter": "test_formatter",
"class": "logging.StreamHandler",
"stream": "ext://sys.stdout",
}
},
"loggers": {
"uvicorn.error": {
"handlers": ["test_handler"],
"level": "INFO",
"propagate": False,
}
},
}
explicit_log_level = "debug"
server_task = asyncio.create_task(
mcp_server.run_http_async(
log_level=explicit_log_level,
uvicorn_config={"log_config": sample_log_config},
port=8005,
)
)
await asyncio.sleep(0.01)
mock_uvicorn_config_constructor.assert_called_once()
_, kwargs_config = mock_uvicorn_config_constructor.call_args
assert kwargs_config.get("log_config") == sample_log_config
assert "log_level" not in kwargs_config
mock_uvicorn_server_constructor.assert_called_once_with(
mock_uvicorn_config_constructor.return_value
)
mock_server_instance.serve.assert_awaited_once()
server_task.cancel()
with pytest.raises(asyncio.CancelledError):
await server_task
|